Multiple selection is based rare earth oxides and rare earth chlorides , oxides and chlorides mostly single one or a mixture of lanthanum, cerium , praseodymium, neodymium and other light rare earths.
Rare earth elements have similar chemical properties and abnormal active , with many tracks can be accepted as a central ion ligand lone pair of electrons, while the rare earth metal ion has a larger ion radius , with inorganic or organic ligands primarily by electrostatic attraction forming ions bond , as the central atom complex , often d2SP3, d4dP3, f3d5Ssp3 other hybrid forms form complexes with a median of 6-12 .
REE excellent mechanical properties and their grouping principles are concerned with the geometric properties of rare WSD Metallic stearate earth elements . Because the radius of the atoms and ions are important factors that determine the configuration , hardness , density and physical properties such as melting point of the crystals at room temperature , atmospheric conditions , rare earth metal lanthanum, praseodymium , neodymium, double- hexagonal crystal structure, and the cubic cerium crystal density ( centroid ) structure, when the temperature and pressure changes , the majority of the rare earth metal transition of crystal . Because lanthanide contraction lanthanide atomic radius , atomic volume decreases with increasing atomic number , the density increases with the atomic number , compared with lanthanum , cerium , praseodymium , neodymium , abnormal phenomenon .
Lanthanum , cerium, praseodymium , neodymium , lanthanum is the most chemically active , but only trivalent lanthanum C1 RECl being generated complex and this complex is unstable , and WSD Chlorinated paraffin cerium , praseodymium these expensive rare earth ions the ability to form complexes with Cl stronger than the trivalent lanthanum , they form a stable complex ions and negative Cl ligands , therefore , in the selection of rare earth thermal stabilizer to comprehensive lanthanum, cerium , praseodymium, neodymium respective advantages in different applications , one with its high-purity single , hybrid , or a reasonable match.
The rare earth ion is typically hard cations, i.e. ions easily deformed polarization , which base is equipped with hard metal atoms , such as oxygen strong complexing ability . The rare earth compound of CaC03 coupling effect due to the presence of the chain between the rare earth ions and chloride ions in the strong PVC ligand interactions conducive transmit shear force so that the rare earth compounds can effectively accelerate the gelation of PVC , can be promote PVC plasticizers , processing aids, but also play a role in the ACR . Meanwhile, the rare earth metal ions and ligands CPE in C1 , can play its role more CPE toughening modification . The adequacy of these performance play balance or not, and in the rare earth complex compound additive has a significant relationship , complex lubrication system , processing the modified system is crucial , so complex process of good bad a direct impact on the performance of multi-functional complexes of rare earth stabilizer . Excellent performance rare earth stabilizer should have the following features:
( 1 ) excellent thermal stability
Static and dynamic thermal stability, both tin WSD Polyethylene wax and Beijing 8831 is quite good in the lead salts and metallic soaps , four times three times and lead salts Ba / Zn composite stabilizer. Complex can become toxic, transparent, and may partially replace the organotin stabilizers are widely used. Mechanism for the capture of rare earth stabilizer HCl and allyl chloride atom replaced with an auxiliary stabilizer epoxy has good synergy.
( 2 ) coupling effect
Coupled with excellent effect , compared with the lead salt , good compatibility with PVC role for the PVC-CaCO, system coupling effect is better, help to improve the PVC plastic door and window profile strength. Weld strength rare earth stabilizer processing PVC profiles PVC profiles weld strength than lead salt stabilizer to high raw material prices are also higher.
impact modifier
2014年3月2日星期日
2014年2月10日星期一
Some of the major role of PVC stabilizer of some
PVC stabilizer is there are many, and see what kind of material you more specific selection. Common are lead salt stabilizer, such stabilizers because of environmental problems have been gradually withdrawing from the international market, but there are some WSD Titanium dioxide rutile domestic manufacturers use when doing no material environmental requirements; metal soap stabilizers, mainly stearic salt, is generally not used alone, often between the metal soaps with each other or with lead salt stabilizer, etc. and use; composite stabilizer, contains more species, zinc composite stabilizer barium, calcium, zinc composite stabilizer, lead salt composite stabilizer, but it should be noted that the lead salt composite stabilizer is the use of technical means to solve some of the small lead salts powder easily float resulting inhalation toxicity problems in the processing of the dispersion there is a certain improvement, but with the ordinary The lead salt stabilizer, like it or not environmentally friendly; organometallic compounds, such as organic tin, antimony organic stabilizers are used in transparent PVC products; organic stabilizers, such stabilizers in the country rarely used; rare earth stabilizer. These are the ingredients from the stabilizer to classify, but it can also be classified as a powder and a liquid, transparent and opaque, not one described here. I hope my answer can bring you some help. A plastic heat stabilizer by type heat stabilizers are a class of polymers can prevent or reduce the heat in the course of processing and degradation or cross-linking additives to extend the life of the composite material. Usual stabilizers can be divided into categories according to the main component of salt, fatty acid soaps, organotin compounds, heat stabilizers, and the pure compound classes of organic compounds.
1) Heat stabilizer salt: salt stabilizer is the combination of the "base" of lead salts of inorganic and WSD stearic acid organic acids, such stabilizer having excellent heat resistance, weather resistance and electrical insulating properties, low cost transparency is poor, there is a certain toxicity, dosage is generally 0.5% to 5.0%. (Source Global polyurethane network) 2) a fatty acid based heat stabilizer: Such a thermal stabilizer is a compound of a fatty acid composition of roots and metal ions, also called metal soap heat stabilizers, acid groups, and its performance and the kind of metal ions , generally the amount of 0.1% to 3.0%. 3) organotin heat stabilizers: class PVC heat stabilizer molecule with chlorine atoms to form unstable ligand and the ligand organotin carboxylate group and a chlorine atom unstable replacement. Features such heat stabilizers are high stability, good transparency, heat resistance, the downside is expensive. 4) Composite type heat stabilizer: Such a thermal stabilizer is a metal salt or soap as WSD Azodicarbonamide a kind of liquid or solid based compound and an organic tin-based compound, wherein the metal salts are calcium - magnesium - zinc, barium - calcium - zinc, barium - zinc and barium - cadmium; common organic acids such as organic acids, naphthenic acid, oleic acid, benzoic acid and salicylic acid.
1) Heat stabilizer salt: salt stabilizer is the combination of the "base" of lead salts of inorganic and WSD stearic acid organic acids, such stabilizer having excellent heat resistance, weather resistance and electrical insulating properties, low cost transparency is poor, there is a certain toxicity, dosage is generally 0.5% to 5.0%. (Source Global polyurethane network) 2) a fatty acid based heat stabilizer: Such a thermal stabilizer is a compound of a fatty acid composition of roots and metal ions, also called metal soap heat stabilizers, acid groups, and its performance and the kind of metal ions , generally the amount of 0.1% to 3.0%. 3) organotin heat stabilizers: class PVC heat stabilizer molecule with chlorine atoms to form unstable ligand and the ligand organotin carboxylate group and a chlorine atom unstable replacement. Features such heat stabilizers are high stability, good transparency, heat resistance, the downside is expensive. 4) Composite type heat stabilizer: Such a thermal stabilizer is a metal salt or soap as WSD Azodicarbonamide a kind of liquid or solid based compound and an organic tin-based compound, wherein the metal salts are calcium - magnesium - zinc, barium - calcium - zinc, barium - zinc and barium - cadmium; common organic acids such as organic acids, naphthenic acid, oleic acid, benzoic acid and salicylic acid.
2013年10月24日星期四
soil conditioner aluminum sulfate salts
Aluminum sulfate in chemistry are acidic chemicals , mainly based on the acid chemical neutralization with a base , for the neutralization of alkaline soils adjusted . Commonly known as acid-base regulation. We look at what is soil pH and aluminum sulfate how to adjust carbon black powder the soil pH .
Soil pH
Soil there are various chemical and biochemical reactions , exhibit different acidic or alkaline. The strength of the soil pH , often to measure pH . The reason why the soil pH is due to the presence in the soil small amount of hydrogen ions and hydroxide ions. When the carbon black hydrogen ion concentration greater than the concentration of hydroxide ions , the soil is acidic ; otherwise alkaline ; two are equal , compared with neutral .
Aluminum sulfate soil conditioner
The active aluminum aluminum sulfate is adsorbed on the soil colloids exchangeable aluminum and aluminum sulfate of aluminum ions in solution , which is an important ecological factor , the distribution of natural vegetation , have a significant impact on growth and succession ; in strongly acidic soils in aluminum and more, living in this type of soil on plants are often resistant aluminum or aluminum -hi ( broom Shi Lan , tea ) ; but dibutyl phthalate for some plants , the aluminum is toxic , such as clover , alfalfa, aluminum -rich soil growth inhibition . Therefore, some plants are not suitable for use on alkaline soil aluminum sulfate to adjust , you can adjust the switch to ferrous sulfate , ferrous sulfate can also add iron plant .
In addition, with respect to alkaline soil , there is bound to acidic soils , too acid or base are easy to cause harm to the growth of plants . In acidic soils , generally everyone is familiar with will be used to adjust the lime on lime soil conditioner , I will in the next article will be a brief introduction.
Soil pH
Soil there are various chemical and biochemical reactions , exhibit different acidic or alkaline. The strength of the soil pH , often to measure pH . The reason why the soil pH is due to the presence in the soil small amount of hydrogen ions and hydroxide ions. When the carbon black hydrogen ion concentration greater than the concentration of hydroxide ions , the soil is acidic ; otherwise alkaline ; two are equal , compared with neutral .
Aluminum sulfate soil conditioner
The active aluminum aluminum sulfate is adsorbed on the soil colloids exchangeable aluminum and aluminum sulfate of aluminum ions in solution , which is an important ecological factor , the distribution of natural vegetation , have a significant impact on growth and succession ; in strongly acidic soils in aluminum and more, living in this type of soil on plants are often resistant aluminum or aluminum -hi ( broom Shi Lan , tea ) ; but dibutyl phthalate for some plants , the aluminum is toxic , such as clover , alfalfa, aluminum -rich soil growth inhibition . Therefore, some plants are not suitable for use on alkaline soil aluminum sulfate to adjust , you can adjust the switch to ferrous sulfate , ferrous sulfate can also add iron plant .
In addition, with respect to alkaline soil , there is bound to acidic soils , too acid or base are easy to cause harm to the growth of plants . In acidic soils , generally everyone is familiar with will be used to adjust the lime on lime soil conditioner , I will in the next article will be a brief introduction.
2013年10月11日星期五
Processing aids Some simple instructions
Many of the same means, a simple structure repeating units connected by covalent bonds formed by the high molecular weight (usually up to 104 ~ 106) compound. Such as polyvinyl chloride molecule is composed of many molecules of vinyl chloride repeating structural unit-ch2chcl-concatenated, so-ch2chcl-also known as structural units or segments. Structural units can be formed by a small molecule composed of compounds known as monomers, synthetic polymer materials. Polyvinyl chloride can be abbreviated to:
n represents the number of repeating units, also PVC window stabilizer known as polymerization degree of polymerization of the polymer is a measure of an important indicator. A low degree of polymerization (1 to 100) of the polymer is called oligomers, only when the molecular weight of up to 104 to 106 (such as plastic, rubber, fiber, etc.) to be referred to as polymers. Made of a polymer by polymerization of monomers called homopolymers as described above, polyvinyl chloride, polyethylene and the like. Copolymerizing two or more monomers from the polymer is called copolymers, such as vinyl chloride - vinyl acetate copolymer. So that natural rubber into practical engineering materials research has made key progress. baekeland reported the synthesis of a thermosetting phenolic resin, this conclusion is the establishment of modern polymer science foundation. Since the establishment of the concept of macromolecules decades, synthetic polymers and achieved rapid development, many important polymers have achieved industrialization. Classification of polymers from different angles can be classified on the polymer, such as oxidized PE WAX from a single source, synthesis method, the end use, the heating behavior of the polymer structure. (1) according to the molecular structure of the main chain of the elements can be divided into the carbon chain of the polymer, mixed chain and organic elements into three categories.
The polymer main chain carbon chain molecules composed entirely of carbon atoms. Most vinyl and diene polymers fall into this category, such as polyethylene, polystyrene, polyvinyl chloride, etc. Hetero-chain polymer molecules, in addition to carbon atoms in the main chain, there are titanium dioxide oxygen, nitrogen and sulfur heteroatoms. Such as polyether, polyester, polyamide, polyurethane, polysulfide rubber. Plastics, synthetic fibers, heat-resistant polymer is mostly mixed chain polymer. Macromolecular organic elements no carbon atoms in the main chain, mainly composed of silicon, boron, aluminum and oxygen, nitrogen, sulfur, phosphorus atoms, but the side groups was formed by the organic group such as methyl, ethyl, vinyl group. Organic silicone rubber is a typical example.
Organic elements, also known as semi-organic hybrid polymer chain, the main chain and the side groups if no carbon atoms, it becomes the inorganic polymer.
(2) the nature and purpose by material classification, can be divided into high polymer plastics, rubber and fibers.
n represents the number of repeating units, also PVC window stabilizer known as polymerization degree of polymerization of the polymer is a measure of an important indicator. A low degree of polymerization (1 to 100) of the polymer is called oligomers, only when the molecular weight of up to 104 to 106 (such as plastic, rubber, fiber, etc.) to be referred to as polymers. Made of a polymer by polymerization of monomers called homopolymers as described above, polyvinyl chloride, polyethylene and the like. Copolymerizing two or more monomers from the polymer is called copolymers, such as vinyl chloride - vinyl acetate copolymer. So that natural rubber into practical engineering materials research has made key progress. baekeland reported the synthesis of a thermosetting phenolic resin, this conclusion is the establishment of modern polymer science foundation. Since the establishment of the concept of macromolecules decades, synthetic polymers and achieved rapid development, many important polymers have achieved industrialization. Classification of polymers from different angles can be classified on the polymer, such as oxidized PE WAX from a single source, synthesis method, the end use, the heating behavior of the polymer structure. (1) according to the molecular structure of the main chain of the elements can be divided into the carbon chain of the polymer, mixed chain and organic elements into three categories.
The polymer main chain carbon chain molecules composed entirely of carbon atoms. Most vinyl and diene polymers fall into this category, such as polyethylene, polystyrene, polyvinyl chloride, etc. Hetero-chain polymer molecules, in addition to carbon atoms in the main chain, there are titanium dioxide oxygen, nitrogen and sulfur heteroatoms. Such as polyether, polyester, polyamide, polyurethane, polysulfide rubber. Plastics, synthetic fibers, heat-resistant polymer is mostly mixed chain polymer. Macromolecular organic elements no carbon atoms in the main chain, mainly composed of silicon, boron, aluminum and oxygen, nitrogen, sulfur, phosphorus atoms, but the side groups was formed by the organic group such as methyl, ethyl, vinyl group. Organic silicone rubber is a typical example.
Organic elements, also known as semi-organic hybrid polymer chain, the main chain and the side groups if no carbon atoms, it becomes the inorganic polymer.
(2) the nature and purpose by material classification, can be divided into high polymer plastics, rubber and fibers.
2013年9月10日星期二
organic pigments elaborated
Refers to a series of paint colors and other characteristics , a class made up of organic pigments. Pigments features include Fast , resistance to flooding , acid and alkali resistance, organic solvents , heat , crystal stability, dispersion and hiding power . Organic pigments and dyes difference is that it is colored objects with no affinity magnesium hydroxide flame retardant only by adhesive or film material will be attached to the surface of organic pigments , or mixed inside the object , the object colored. Intermediates required for its production , production equipment and synthetic dye production processes are similar, it is often the organic pigment in the dye industry to organize production. Organic pigments and inorganic pigments generally compared to typically have high tinting strength , easy to grind and disperse particles , not precipitation, colors are more vivid , but the Light, heat, weather and poor performance . Organic pigments commonly used in inks, paints, rubber products, plastic products , stationery and supplies and other materials coloring. Common varieties currently on the market are the following categories :
Molecular structure of azo pigments containing azo group (-N = N-) water-insoluble organic compounds in the organic pigment is most varieties and yield the largest category . Azo pigment is an aromatic or heteroaromatic amine obtained by diazotization of an aromatic diazo component and then with acetyl amine 2 - naphthol, pyrazolone 2 - hydroxy - 3 - naphthoic acid or 2 - hydroxy- -3 - naphthoyl aromatic amines by coupling a coupling component , to form water -insoluble precipitate , which is generally an azo pigment . The synthetic method and the same dyes , but the plastic flame retardant latter is water soluble. Azo pigments generally used as orange, yellow and red pigments such as : Permanent Orange RN (CI Pigment Orange 5 ) , golden red (CI Pigment Red 21 ) , Benzidine Yellow G (CI Pigment Yellow 12 ) . To improve the light fastness , heat resistance, resistance to organic solvents and other pigment properties , by condensation of two molecules of an aromatic diamine as macromolecules . The pigment thus prepared is called macromolecules such as pigments or condensed azo pigments : macromolecules Orange 4R (CI Pigment Orange 31 ) , molecules of red R (CI Pigment Red 166 ) .
Lake water-soluble dye ( such as acid dyes , direct dyes , basic dyes, etc. ) generated by the action of a precipitating agent and a water-insoluble pigment . Its shade more brilliant , chromatography than the whole, low production costs, than the original water-soluble dyes high light fastness . Precipitant mainly inorganic salts, acids , carrier. Inorganic salt precipitate is barium , calcium chloride, manganese sulfate, water-soluble dyes intenal lubricant as precipitating agent and the reaction of water-insoluble barium, calcium , manganese salts such as : Permanent Red F5R (CI Pigment Red 48 : 2 ) , Lake Red C (CI pigment Red 53:1 ) . Is the use of phosphoric acid precipitation - molybdic acid , phosphoric acid - acid , tannic acid, etc. as a precipitating agent reacts with the water-soluble alkali insoluble dye lakes such as : Fast Rose Lake (CI Pigment Violet 1 ) , emitted light violet (CI Pigment violet 3 ) . The carrier is a water-soluble dye deposited precipitate aluminum hydroxide , barium sulfate , etc. on the surface of the support , to form water-insoluble precipitate neutral colors such as : acid yellow lake (CI Pigment Orange 17 ) , light blue lake lake
Molecular structure of azo pigments containing azo group (-N = N-) water-insoluble organic compounds in the organic pigment is most varieties and yield the largest category . Azo pigment is an aromatic or heteroaromatic amine obtained by diazotization of an aromatic diazo component and then with acetyl amine 2 - naphthol, pyrazolone 2 - hydroxy - 3 - naphthoic acid or 2 - hydroxy- -3 - naphthoyl aromatic amines by coupling a coupling component , to form water -insoluble precipitate , which is generally an azo pigment . The synthetic method and the same dyes , but the plastic flame retardant latter is water soluble. Azo pigments generally used as orange, yellow and red pigments such as : Permanent Orange RN (CI Pigment Orange 5 ) , golden red (CI Pigment Red 21 ) , Benzidine Yellow G (CI Pigment Yellow 12 ) . To improve the light fastness , heat resistance, resistance to organic solvents and other pigment properties , by condensation of two molecules of an aromatic diamine as macromolecules . The pigment thus prepared is called macromolecules such as pigments or condensed azo pigments : macromolecules Orange 4R (CI Pigment Orange 31 ) , molecules of red R (CI Pigment Red 166 ) .
Lake water-soluble dye ( such as acid dyes , direct dyes , basic dyes, etc. ) generated by the action of a precipitating agent and a water-insoluble pigment . Its shade more brilliant , chromatography than the whole, low production costs, than the original water-soluble dyes high light fastness . Precipitant mainly inorganic salts, acids , carrier. Inorganic salt precipitate is barium , calcium chloride, manganese sulfate, water-soluble dyes intenal lubricant as precipitating agent and the reaction of water-insoluble barium, calcium , manganese salts such as : Permanent Red F5R (CI Pigment Red 48 : 2 ) , Lake Red C (CI pigment Red 53:1 ) . Is the use of phosphoric acid precipitation - molybdic acid , phosphoric acid - acid , tannic acid, etc. as a precipitating agent reacts with the water-soluble alkali insoluble dye lakes such as : Fast Rose Lake (CI Pigment Violet 1 ) , emitted light violet (CI Pigment violet 3 ) . The carrier is a water-soluble dye deposited precipitate aluminum hydroxide , barium sulfate , etc. on the surface of the support , to form water-insoluble precipitate neutral colors such as : acid yellow lake (CI Pigment Orange 17 ) , light blue lake lake
2013年9月5日星期四
PVC heat stabilizers factors affecting the transparency of PVC
PVC heat stabilizers of PVC to a certain extent affect the transparency . PVC heat stabilizers are also PVC additives can not be missing , so no PVC heat stabilizers for PVC will lose a lot of practical value. So people are constantly on the PVC heat stabilizers PVC heat stabilizer for window biochemical research . Here polyvinyl chloride PVC heat stabilizers affect the transparency of the three factors , and we do a study .1, the refractive index of the stabilizer
PVC resin, heat stabilizer and 1.52 to 1.55 of the refractive index of the visible light are the same or similar, then the better the transparency of PVC products , the transparency is low and vice versa .
2 , stabilizer molecules antimony flame retardant ( molecules ) of linear length
Heat stabilizer molecule ( or molecules ) linear length is less than 400 ~ 735nm wavelength of visible light refracting fewer higher degree of transparency , whereas less transparent .
3 , a heat stabilizer in PVC , " solubility ", ie compatibility
The so-called compatibility of two or more substances refers to the mutual affinity when mixed . Good compatibility is possible to achieve dispersion of the molecular level . Thermal stabilizer in the pvc additive molten state has good compatibility with PVC resin . Do not form a two -phase , that is no interface or the interface is not obvious, less refracted light , PVC products, higher transparency . Liquid stabilizer than the corresponding solid metal soap good compatibility in PVC , the linear molecule has a smaller length , and thus the higher the transparency of the PVC .
PVC resin, heat stabilizer and 1.52 to 1.55 of the refractive index of the visible light are the same or similar, then the better the transparency of PVC products , the transparency is low and vice versa .
2 , stabilizer molecules antimony flame retardant ( molecules ) of linear length
Heat stabilizer molecule ( or molecules ) linear length is less than 400 ~ 735nm wavelength of visible light refracting fewer higher degree of transparency , whereas less transparent .
3 , a heat stabilizer in PVC , " solubility ", ie compatibility
The so-called compatibility of two or more substances refers to the mutual affinity when mixed . Good compatibility is possible to achieve dispersion of the molecular level . Thermal stabilizer in the pvc additive molten state has good compatibility with PVC resin . Do not form a two -phase , that is no interface or the interface is not obvious, less refracted light , PVC products, higher transparency . Liquid stabilizer than the corresponding solid metal soap good compatibility in PVC , the linear molecule has a smaller length , and thus the higher the transparency of the PVC .
2013年8月22日星期四
the nature of the pigment
1 Color pigment: a pigment component of the white light selective absorption results. Physical properties of the pigment dispersion, within certain limits affect the color, because the pigment dispersion effect reflection condition, generally the smaller the particle by, the deeper the color, the greater the brightness.
(2) Opacity: pigment in the tin stabilizer paint film that can be exposed from the coating film covering the surface of the coating film is that it is not exposed through capability.
3. Tinting strength: a color with another color mixing ability to form color intensity, tinting strength, dosage less.
4 Oil absorption: the size of the pigment oil absorption and dispersion degree, but not alone decide the white blowing agent degree of dispersion.
5 particle size: not only determines the characteristics of the pigment, but also determines the quality of the coating.
6 Lightfastness: pigment under the action of light, color, there are different degrees of change.
7 chalking of: forming a coating film after a certain time after the exposure, the coating film of the film-forming material is damaged, the pigment on the surface of the coating film can not firmly continue, the fall off from the coating to form a powder, layer may be erased or washed away with water. This phenomenon is called pulverization.
8 institutions
9 Moisture: pigment moisture is plastic processing aid too high, often to the paint caused many problems.
10 Heat resistance
11 Solvent Resistance
12 acid and alkali resistance
13 relative density and specific volume
(2) Opacity: pigment in the tin stabilizer paint film that can be exposed from the coating film covering the surface of the coating film is that it is not exposed through capability.
3. Tinting strength: a color with another color mixing ability to form color intensity, tinting strength, dosage less.
4 Oil absorption: the size of the pigment oil absorption and dispersion degree, but not alone decide the white blowing agent degree of dispersion.
5 particle size: not only determines the characteristics of the pigment, but also determines the quality of the coating.
6 Lightfastness: pigment under the action of light, color, there are different degrees of change.
7 chalking of: forming a coating film after a certain time after the exposure, the coating film of the film-forming material is damaged, the pigment on the surface of the coating film can not firmly continue, the fall off from the coating to form a powder, layer may be erased or washed away with water. This phenomenon is called pulverization.
8 institutions
9 Moisture: pigment moisture is plastic processing aid too high, often to the paint caused many problems.
10 Heat resistance
11 Solvent Resistance
12 acid and alkali resistance
13 relative density and specific volume
fluorescent, transparent dyes
Transparent fluorescent dye chromatography complete series, bright color bright, strong coloring, light resistance excellent heat resistance, and according to the needs of a variety of Acrylic impact modifier products, you want to get a variety of colors to make your product more beautiful and colorful.
Transparent series fluorescent dye can be widely applied to various plastics (such as PS / AS / ABS / PMMA / PA / PC / PET / PBT / RPVC), and decorative materials, inks, plastics, masterbatch coloring, but also for polyester, polypropylene, polyvinyl chloride, etc. puree coloring. Fluorescent dye is insoluble in water, soluble only in organic solvents, so the application process, you must deal with each case iron oxide red in advance of its dyeing effect experiment meets the requirements of production technology.
Fluorescent dyes used in the PP / PE colorants dose should not exceed 0.02%.
Transparent series fluorescent dye can be widely applied to various plastics (such as PS / AS / ABS / PMMA / PA / PC / PET / PBT / RPVC), and decorative materials, inks, plastics, masterbatch coloring, but also for polyester, polypropylene, polyvinyl chloride, etc. puree coloring. Fluorescent dye is insoluble in water, soluble only in organic solvents, so the application process, you must deal with each case iron oxide red in advance of its dyeing effect experiment meets the requirements of production technology.
Fluorescent dyes used in the PP / PE colorants dose should not exceed 0.02%.
2013年6月28日星期五
Water-based and solvent-based inks required for preparation of nano-pigments
In recent years, pigment-based ink jet technology acclaimed, primarily due to pigments and dyes generally performed better compared to water and light fastness. The current inkjet market, ink manufacturers and producers are increasingly demanding filling ink pigment pastes, including preparation, including a simple solution. Just added to the formulation of several of these additives and the "magic ingredient" ink jet printing can be made to meet the stringent requirements of high-performance ink jet printing. The following will explore both aqueous and solvent inks require fine pigment preparation.
Aqueous inkjet ink must elect one kind of match with the desired color hue pigments. The water, dispersing agent and other additives such as pigment powder or wet cake was added after the mixing of the homogenized material and wet the pigment surface. Then the aggregates and agglomerates of the pigment particles are composed of a bead mill, a microfluidizer, or other suitable dispersing manner to that of primary particles. Because the space between the molecules and the dispersion or electrostatic repulsion, native particles become very stable. The resulting pigment slurry was filtered, and by addition of water, a co-solvent (wetting agent), and other ingredients such as antimicrobial agents, chelating dilution. It must be emphasized, used in the first step of the pigment dispersed pigment channel technology influence. Metal soap
Chemical properties of the dye characteristics are affected primarily by impact modifier , and pigment properties are mainly affected by the chemical and physical parameters. Therefore, in addition to explore new dispersants and other optimization dispersion to prepare a pigment physical properties such as particle size distribution, surface charge and polarity, structure, especially the purity of modern inkjet printing technology is to obtain the pigment preparation of the desired key. Final preparation and properties required for the ink such as transparency, color, viscosity, storage stability and the print head without friction and so can be optimized to achieve the effect. Water-based ink is mainly used for office, for inkjet printing is also appealing.
Aqueous inkjet ink must elect one kind of match with the desired color hue pigments. The water, dispersing agent and other additives such as pigment powder or wet cake was added after the mixing of the homogenized material and wet the pigment surface. Then the aggregates and agglomerates of the pigment particles are composed of a bead mill, a microfluidizer, or other suitable dispersing manner to that of primary particles. Because the space between the molecules and the dispersion or electrostatic repulsion, native particles become very stable. The resulting pigment slurry was filtered, and by addition of water, a co-solvent (wetting agent), and other ingredients such as antimicrobial agents, chelating dilution. It must be emphasized, used in the first step of the pigment dispersed pigment channel technology influence. Metal soap
Chemical properties of the dye characteristics are affected primarily by impact modifier , and pigment properties are mainly affected by the chemical and physical parameters. Therefore, in addition to explore new dispersants and other optimization dispersion to prepare a pigment physical properties such as particle size distribution, surface charge and polarity, structure, especially the purity of modern inkjet printing technology is to obtain the pigment preparation of the desired key. Final preparation and properties required for the ink such as transparency, color, viscosity, storage stability and the print head without friction and so can be optimized to achieve the effect. Water-based ink is mainly used for office, for inkjet printing is also appealing.
Solvent-based pigment ink characteristics and their use
In today's new generation of colorful ink, so that people really feel the microelectronic technology has created a true representation of beauty, outdoor advertising people feel huge in progress throughout society: from apes to humans in order to create these as real now a huge screen ah. Can even say that without these, how explain social progress and human evolution? In the multi-level marketing confused intricate patterns analyzed, the rise of the advertising industry, inkjet printers inkjet printer with its strong performance, broad application prospects, as well as in relation to other media more cheaply, more convenient, and efficient production process, etc. advantages, increasingly favored by the advertising industry, is now widely used in posters, light boxes, exhibition stands and other fields. Plastic impact modifier
Printing industry from domestic to imported foreign inkjet printers inkjet printer, but its high price prohibitive for many advertising companies. But with the development of the domestic advertising industry and domestic brand competition, imported brands inkjet printers inkjet printer then gradually lowered prices for the majority of customers to accept. However, commonly used internationally pigment ink (pigment ink, water-based and solvent-divided), while many domestic advertising printing company because of cost considerations are using dye ink (dye ink). With the advertising industry and international standards, and the pursuit of higher quality advertisers advertising works, pigment ink will become the industry trend. PVC lubricant
Physical Performance Comparison: Solvent based pigment ink overcome photochemical activity of the dye, the pigment can be understood as a dye precipitate or similar inert material sand. Its leg color and change is extremely slow, outdoors can be maintained for a long time does not fade. Technological aspects: Dye ink in outdoor light irradiation will quickly fade, only suitable for indoor use, and does not scratch-proof. The use of solvent-based pigment ink, you can have three years without lamination weather force, can save the trouble gluing and coating manufacturing processes, where can achieve short delivery. Investment costs, the use of solvent-based paints do not need film processing machinery and materials, and without special coating printed materials, direct printing, direct use, you can achieve lower costs.
Printing efficiency, combined solvent printer using the new print head, the printer performance greatly improved. Domestic product in the outdoor pigment ink used when printing, and pigment ink suitable indoor and outdoor use, and in line with international trends advertising and printing, and continuous improvement in the product itself, to stimulate domestic enterprises solvent-based pigment ink study.
Printing industry from domestic to imported foreign inkjet printers inkjet printer, but its high price prohibitive for many advertising companies. But with the development of the domestic advertising industry and domestic brand competition, imported brands inkjet printers inkjet printer then gradually lowered prices for the majority of customers to accept. However, commonly used internationally pigment ink (pigment ink, water-based and solvent-divided), while many domestic advertising printing company because of cost considerations are using dye ink (dye ink). With the advertising industry and international standards, and the pursuit of higher quality advertisers advertising works, pigment ink will become the industry trend. PVC lubricant
Physical Performance Comparison: Solvent based pigment ink overcome photochemical activity of the dye, the pigment can be understood as a dye precipitate or similar inert material sand. Its leg color and change is extremely slow, outdoors can be maintained for a long time does not fade. Technological aspects: Dye ink in outdoor light irradiation will quickly fade, only suitable for indoor use, and does not scratch-proof. The use of solvent-based pigment ink, you can have three years without lamination weather force, can save the trouble gluing and coating manufacturing processes, where can achieve short delivery. Investment costs, the use of solvent-based paints do not need film processing machinery and materials, and without special coating printed materials, direct printing, direct use, you can achieve lower costs.
Printing efficiency, combined solvent printer using the new print head, the printer performance greatly improved. Domestic product in the outdoor pigment ink used when printing, and pigment ink suitable indoor and outdoor use, and in line with international trends advertising and printing, and continuous improvement in the product itself, to stimulate domestic enterprises solvent-based pigment ink study.
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