Butyl stearate Uses

butyl stearate added as auxiliary agents hardy PVC is widely used in PVC transparent soft board, cable, leather and rolling film. Amount of 5-10%. This product is widely used as an internal lubricant PVC sheet, plate, pipe, pipe fittings, profiles and bottle pellets, shrink film, kink

Film, the amount of 1-3%. As nitrocellulose, ethyl cellulose, plasticizer, when used in coatings, the film can be improved gloss, water resistance and scratch resistance, if this product was dissolved in a solvent-based plasticizer re-use, plasticizing efficiency can be improved. It can also improve the polyphenylene

Ethylene, vinyl chloride - vinyl acetate copolymer and acrylonitrile-butadiene rubber, and many resins workability and releasability. In addition, the product can be used as a metal foil rolling and spinning lubricants. As a cosmetic additives, as cream. Lipstick products moisturizer. This product is a variety of trees

Processing grease lubricant and release agent, widely used in PVC transparent soft and rigid extrusion, injection molding and calendering products and polystyrene products. Also lubricants for metal and fabric, waterproof and lubricants, shoe polish, cosmetic additives. Also available

As nitrocellulose, ethyl fibrous plasticizers and coatings film modifier.

Use of antimony trioxide

1 antimony trioxide used as various resins, synthetic rubber, canvas, paper, paint and other flame retardants, petrochemical, synthetic catalysts. Mordant used in the manufacture, white agents, antimony salts of synthetic material. Enamel industry as additives to increase the enamel does not

Transparency and surface gloss. Glass industry as a substitute arsenious bleaching agent. Pharmaceutical, metallurgy, military and so on.
2 antimony trioxide flame retardant is added, often with other flame retardants, smoke suppressants and use of each component can generate synergies between. Antimony trioxide in the early stages of combustion, first melted, a protective film formed on the surface of the material isolated from the air, through an internal endothermic reaction, reducing

Low combustion temperature. Antimony trioxide in a high temperature state is gasified dilute oxygen concentration in the air, and thus play a flame retardant.
3 is a commonly used antimony oxide trioxide polycondensation catalyst in the polycondensation of terephthalic acid in the amount of ethylene was about 0.03%. Also used as various resins, synthetic rubber, canvas, paper, paint and other flame retardants. Antimony trioxide is also a good cover agent, as a white oil

Paint pigments. For the manufacture of mordant, milky agent, is also synthesized antimony salts of raw materials, glass industry as a bleaching agent alternative arsenite.
4 antimony trioxide for fire coatings, paints, enamels and glass industries and preparing antimony potassium tartrate. Also used as a mordant.
5 is the application of the first flame retardant of antimony trioxide, suitable epoxy resins, polyurethane, polystyrene, polyvinyl chloride, polyester and the like. Low-retardant effect when used alone, when combined with halogen compounds when used with good synergies, flame effect significantly improved. Also used

Manufacture of enamel glazes, pigments, pharmaceuticals, dyes and other media. Furthermore, also in the petrochemical and synthetic fiber industry as a catalyst, in the glass industry as an alternative bleaching agents arsenious acid.

Plastic additives requirements

The main requirements of the plastic additive are:
① Efficient: applications in plastics processing and can effectively play its proper function. Selection should be based on the additive mixing with the comprehensive performance requirements.
② Compatibility: synthetic resin with better compatibility.
③ Persistence: in the plastic processing and application process is not volatile, non-bleeding and non-migratory and non-leaching.
④ Chemical stability: in the plastic processing and application process does not decompose with the synthetic resin and other components of the chemical reaction.
⑤ Non-toxic: no toxic effects on the human body.
⑥ low prices. Add a way to add an additive depends on: the physical form of synthetic resin and melt characteristics; pvc additive physical form and concentration; additive compounds, the dispersion and solubility; compounds, the ultimate physical condition. Add o'clock

High-speed mixing, mixing and extrusion processes. The effect additives may be added, in addition to depending on their mechanism of action, but also depends on the correct order of addition.

Physical and chemical properties of plastic additives

plastic additive increase the substrate from the physical and chemical characteristics are analyzed:
Additives include: ① rigidity, strength: fillers, nucleating agents; ② impact: the impact modifier; ③ Heat resistance: fillers, nucleating agents; ④ Flammability: flame retardants; ⑤ Weather resistance: UV stabilizer stabilizer; ⑥ Conductivity: antistatic agents conductive coating filler;

⑦ Color: pigment; ⑧ Flex: plasticizers processing oil; ⑨ density: foaming agent ; ⑩ Transparency: nucleating agents, sexual health: antibacterial agent.
Antioxidant additives are unsaturated double bonds in the plastic by an oxygen atom, the invasion of heat and light, free radicals cause fracture, thereby causing a chain reaction, the molecular chains or the formation of the crosslink, resulting in the strength of plastic products decrease or become brittle. Antioxidants

The feature is that the delay due to oxidation and decomposition of the plastic, extending the life of plastic products.

Physical and chemical properties foaming agent

① physical foaming agent: is generally odorless, non-toxic, inert gas, or a good stability, low boiling point non-flammable liquid. Common inert gases are nitrogen, carbon dioxide, and air, low boiling point liquids used tetrachloroethane, methylene chloride, and pentane. In addition, the dissolution of

Solid compound (such as salt) is also commonly used physical blowing agents. Physical blowing agents suitable for polystyrene, polyethylene, polypropylene, polyvinyl chloride foam
② chemical blowing agents: stable at room temperature, and the plastic processing temperature could explain the large amount of gas of the compound. In the foam manufacturing applications is very common. The chemical blowing agent used in industry is the release of most of the nitrogen gas as the main component of an organic compound, and

Can decompose and release ammonia or carbon dioxide, respectively, ammonium bicarbonate and sodium bicarbonate. Chemical blowing agents suitable for various multi-foamed thermoplastics. In order to reduce chemical decomposition temperature of the blowing agent, to improve its dispersion and the amount of foam, often can be activated using one of the

Science foam blowing agent accelerator, or co-blowing agents, such as salicylic acid and urea.

Brominated flame retardants

Brominated flame retardants despite heavy smoke, because of environmental issues by the EU restrictions; but good flame retardant properties, with less impact on product performance is small, quite a long time in the future is still the main flame. As technology advances the international development of the new brominated flame retardants special

Point is to continue to improve and increase the molecular weight of bromine content. These flame retardants particularly suitable for all kinds of engineering plastics, migration, compatibility, thermal stability, flame resistance, etc. are much better than many small molecules PVC flame retardant , may become future replacements.

Phosphorus flame retardant

Phosphorus flame retardants are mostly liquid, mainly used in PU, PVC and other plastics. Small molecule phosphorus flame retardant main drawback is volatile, heat resistance is not high, is currently working to develop high molecular weight compounds and oligomers, of a halogenated phosphate, containing phosphorus, bromine, chlorine, with

A flame retardant and plasticized, crosslinked flame retardant and phosphorus flame retardant multi-functional development is another major aspect, the flame retardant plasticizer, especially at low temperatures is mainly used for the plasticization of PVC products, such as domestic production dicumyl phosphate. Some of the crosslinking agent is a flame retardant

The phosphorus-containing reactive polyols, not only as the PU reactive flame retardant, but also with the brominated plastic flame retardant and used epoxy resin, can significantly reduce the amount of brominated flame retardants. Phosphorus flame retardants in the future but also to the development of low toxicity, not only solved the drug product itself

Sex, but also consider the toxicity of the combustion products of decomposition and waste pollution problems, or even to consider the production, sales, storage and transportation process of toxicity problems.

Inorganic non-halogenated flame retardants

Most organic halogen-containing flame retardants, smoke when burned, produces toxic gases large, so non-halogenated flame retardant materials in recent years more and more urgent. Some developed countries have begun to prohibit the use of plastic flame retardant , the EU on environmental protection, "two means

Order "has made clear restrictions, after the German environmental groups PAL began in 1995 in the electronic equipment enclosure disable bromides and antimony oxide. Though still the mainstream of halogenated flame retardants in the world, but was replaced by a non-halogen flame retardant trend has been clarified in the non-halogen

The inorganic flame retardant is an important component of the inorganic non-halogenated flame retardant performance can add a lot to the polyolefin, without affecting the mechanical properties of products.

Novel hydroxide

New varieties of magnesium hydroxide
Include: Many people think that magnesium can be used as a substitute for aluminum hydroxide, magnesium hydroxide flame retardant but internal physical crystal water, polar and other reasons, resulting in poor compatibility with the polyolefin, while coupling the coupling After the improved mechanical properties but less obvious, large

Fill in the amount of magnesium hydroxide polyolefin technology is not mature. But the low filling increment (<30%) of magnesium hydroxide and aluminum hydroxide can be improved when sharing carbonization material, and W [Mg (OH) 2]: W [AI (OH) 3] = 1:1, the In the PE has the best synergistic effect.

Novel aluminum hydroxide

New varieties of aluminum hydroxide
Development of new varieties, including: (1) increasing the surface area of ??the aluminum hydroxide particles and ultra fine micronized, water vapor partial pressure of the particle surface decreased, aluminum hydroxide can be improved heat resistance and mechanical properties of the flame-retardant effect significantly enhanced, there are tests showed the same distribution

Parties with an average particle size of the aluminum hydroxide 5μm, the oxygen index of 28, particle size <1μm, the oxygen index of 33. (2) thermal decomposition of aluminum hydroxide and the reaction temperature of the material, can be synthesized in between the thermal decomposition temperature of new varieties, such as aluminum hydroxide and sodium carbonate

Eutectic at 300 ~ 350 ℃ decomposition release water and carbon dioxide, hydrogen chloride and smoke have a stronger inhibitory effect is PVC, polyolefins excellent flame retardant. (3) reducing the insoluble aluminum hydroxide ions especially sodium oxide content, the mass fraction of less than 0.2%.
New varieties of improved surface
Generally aluminum hydroxide with a silane coupling agent, a titanate coupling agent and stearic acid (salt) such as a surface treatment, this has just started domestic, foreign countries have further special functions for a new aluminum hydroxide surface modifier development.
Inorganic synergist new varieties. A small amount of flame retardant synergist of aluminum hydroxide filler can significantly improve performance, such as inhibiting dripping, to improve the mechanical properties. And aluminum hydroxide can be a synergistic effect of a wide range of inorganic flame retardant synergist, mainly metal oxide

Zinc borate compound and a phosphorus compound (red phosphorus, phosphate), a silicon-based compound, a metal nitrate (nitrate, copper nitrate, silver), ammonium polyphosphate, etc..

Colorants plastics additives

plastic additive colorants effects: the use plastic parts to meet aesthetic requirements,

and special color to give the plastic optical properties, and sometimes also to improve the

weather resistance of plastics, often adding a coloring agent.
Type:
1 to give the plastic color toner: organic pigments , inorganic pigments and dyes as

colorants.
(2) to give special optical properties of the plastic optical flakes are: (aluminum,

copper, copper alloys, etc.) ① pearlescent pigment: the plastic was pearlescent; ②

phosphorescent pigment: After exposure to light, the light in the dark; ③ fluorescent

pigment: can emit and absorb different wavelengths

Light, thus forming a glow flashing, but not in the dark light. Colorants should have

performance: they should have strong coloring, bright color, good dispersion

characteristics, not with other components from a chemical change, and with heat, light and

other properties. Colorant

An amount of usually 0.01% to 0.02% of plastic.
The method of adding pigment plastics:
1 using an extrusion granulator, mixing after extrusion - cut granulation, mixing a good

resin material has been used for mass production of the same color product.
2 with color masterbatch added to the resin and mix well, if plastics injection molding

machine; used for small-volume, multi-variety production. Disadvantages are: mixing is not

uniform, different batches of the product there is color.
3. The powdered dye added to the resin color, mixed, if the injection machine plasticizing;

used for small-volume, multi-variety production.
Disadvantages are: mixing is not uniform, different batches of the product there is color.
Current injection has been widely used plastics coloring masterbatch for coloring, long

before the injection molding, in the qualities of plastic particles in a proportion of

concentrated masterbatch mix (the masterbatch) can be. Masterbatch is a colorant, a

dispersant, the carrier and other components by

Specific pre-dispersion granulation process and prepared. A high content of the colorant to

be colored particulate plastic material and is easy to uniform mixing between the

particles, mixing does not produce dust, good working conditions, and because of the

masterbatch containing dispersant additives, coloring agents

Easily dispersed to be colored plastics, injection molding before having to go through an

extruder melt mixing granulation process, coloring effects, coloring costs are also lower,

is a worthy application coloring process.

Physical blowing agent class

According to gas generation means, the physical blowing agent and blowing agent can be

divided into two categories chemical foaming agent .
① physical white foaming agent : is generally odorless, non-toxic, inert gas, or a good

stability, low boiling point non-flammable liquid. Common inert gases are nitrogen, carbon

dioxide, and air, low boiling point liquids used tetrachloroethane, methylene chloride, and

pentane. In addition, the dissolution of

Solid compound (such as salt) is also commonly used physical blowing agents. Physical

blowing agents suitable for polystyrene, polyethylene, polypropylene, polyvinyl chloride

foam
② chemical blowing agents: stable at room temperature, and the plastic processing

temperature could explain the large amount of gas of the compound. In the foam

manufacturing applications is very common. The chemical blowing agent used in industry is

the release of most of the nitrogen gas as the main component of an organic compound, and

Can decompose and release ammonia or carbon dioxide, respectively, ammonium bicarbonate and

sodium bicarbonate. Chemical blowing agents suitable for various multi-foamed

thermoplastics. In order to reduce chemical decomposition temperature of the blowing agent,

to improve its dispersion and the amount of foam, often can be activated using one of the

Science foam blowing agent accelerator, or co-blowing agents, such as salicylic acid and

urea.

Flame-retardant cable

Flame retardant cable, refers to the specified test conditions, the sample was burned in the fire after dropping the test, flame spread only within a limited range, residual or residual flame burning in a limited period of time to self-extinguishing cable. Fundamental characteristics are: In case of fire may be burned out and

Can not run, but you can prevent the spread of fire. More simply, wire in case of fire, able to burn restrictions in the local scope, no spread, keep a variety of other devices, to avoid greater losses. plastic flame retardant
Outline
Retardant meaning: the specified test conditions, the sample was burned in the fire source was removed, the flame spread on the specimen only within a limited range and self-extinguishing characteristics, that have occurred or to prevent or delay the spread of flame capability.
Flame retardant cable
Wire & Cable Cable combustion is generated due to external heating flammable gas, to achieve the purpose of fire, must be suppressed due to the combustion of three elements, namely: combustible gas, heat and oxygen. Therefore, the flame-retardant wire and cable commonly used method is to sheath material

Adding a halogen-containing metal halides and oxides, from the perspective of flame retardant evaluation, which is an excellent method, however, since these materials contain a halide, in the combustion smoke and release large amounts of hydrogen halide, so , when the fire low visibility to

Evacuation and fire safety personnel a great deal of prejudice, while others more for toxic gas suffocation.
Moreover, hydrogen halide and water in the air once the reaction, which generated "hydrogen halide acid", severe corrosion equipment, buildings caused by "second disaster."
Now, with increasing levels of technology, flame issues from the past halogen flame-retardant, has been further developed to low halogen, halogen-free flame-retardant. Zhongli Science and Technology Group Co., Ltd. to develop and produce "communication power with a fire retardant flexible cable" is absolutely the cable

Edge of the jacket with a halogen, high decomposition temperature, good mechanical properties of halogen-free polymer materials, due to cable free of halides and metal oxides in the combustion does not produce harmful gases and a lot of smoke, do not poses a "second disaster" possibilities

, And also has good mechanical properties and electrical performance to meet the requirements for use of the cable, flame retardant cable completely changed in the past inadequacies.

Retardant materials

PEEK is a linear aromatic semi-crystalline polymers, the use of a temperature of 260 ℃. Flame resistance of PEEK of UL94 by laboratory testing, the test includes the vertical burning rate test and the self-extinguishing time of the test. According PEEK supplier Wicks tables provided

That one did not add any additives 1.45mm spline its combustion rate of V-0 level, which is the highest level of flame retardant . During combustion, smoke and toxic gas emissions are very low. Further, PEEK for chemicals, hot water and hot steam has a very high tolerance

Sex. PEEK can be by conventional techniques such as injection molding, extrusion and compression molding processing.
PEEK is usually blended with other polymers and add fiberglass or carbon fiber, are generally used in automobiles, aircraft, pharmaceuticals, electronics, chemical industry. Currently, there are a lot of auto parts manufactured using PEEK resin, such as: gears, bearings. In the chemical process industry

, Many of the pumps and valves are manufactured using PEEK, oil equipment, semiconductors are often seen PEEK resin figure.
PEI is an amorphous polymer, continuous use temperature of 180 ℃, the hydrocarbons, halogenated solvents, water, automotive fluids, and has a strong resistance, the glass transition temperature of 217 ℃. According to the PEI supplier company data provided by GE, 0.25mm spline fire

The UL 94 flame burning rate detected as V-0 level, and has a low smoke emission, can withstand a variety of chemical substances, has a high strength, modulus and high temperature creep resistance. PEI resins are non-reinforced and enhanced levels of two kinds of levels. Typical fillers are carbon fibers,

Glass fiber and certain minerals. plastic flame retardant
In the manufacture of automotive parts, PEI can replace metal damper, sensors, air regulator, ignition system components and driveline components. PEI flame resistance and low smoke emission and low toxic gas emissions make this material used in aerospace

, Such as gas and fuel valves, steering wheel, interior surfaces, food trays. PEI material using an electronic lighting components such as connectors, is a mirror of the polymer in order to play the advantages of flame retardancy.
PEI can use the standard injection molding processing method for processing, the thickness of the parts obtained can reach 0.25mm. Before processing, PEI should be 140 ℃ ~ 150 ℃ drying for several hours.
PPS is a semi-crystalline polymer, its molecular structure is composed of a sulfur atom and a benzene ring are alternately connected together, the structure of PPS resin gives a higher thermal stability and chemical stability. PPS resin temperature of 200 ℃, in the combustion process of coking tendency that

Conducive to preventing the spread of fire. 1.5mm thick PPS spline retardant level is UL 94 V-0 magnitude. Most PPS resin by adding glass fiber and mineral fillers made parts. PPS has a high modulus, creep resistance, and chemical resistance, precision molding can be performed

Parts require high manufacturing tolerances.
Using PPS, flame resistance and high thermal resistance, in the automotive industry, PPS is usually manufactured parts inside the engine, brake system components, electronic systems require components to withstand high temperatures. In industrial equipment, PPS is often used in high temperature and corrosive chemicals used are environment

. There are also electronic devices require a higher shell to manufacture the PPS, PPS is often used for example in the connector and the socket. In addition, some office equipment, optical devices, and some daily necessities PPS also often used to replace metals and thermosets.

Face plasticizing agent can maintain a healthy state of mind

        Following the high-end liquor was found "plasticizer" excessive, the people can not do without daily soy sauce, vinegar, beverages did not escape, but the content is called "400 times in the liquor." Ever worrying carcinogenic, male feminization of the "plasticizing agent" is all around us, but we may have long since been swallowed up, how do?

        Statistics show that in recent years: China's life expectancy was prolonged, is undoubtedly the standard of living, health care standards improve results, and with this increase also exist naturally, technology brings other problems, such as "plasticizers", such as air pollution, such as the use of pesticides and fertilizers, although these negative factors have clearly cause harm to human health, but humans did in such injuries, boil over, life expectancy is one of the evidence. Flame-retardant

        China is now the incidence of cancer is much higher than in the past, even this background, the life expectancy is still in extended description of our health and longevity, people feared far squeamish, fragile, and does bring side effects science is more advanced than it is, it should be in the "plasticizing agent", even after the occurrence of other food safety, environmental pollution exposure, people should have a mental cognition, non of this, it will be scared to death of the endless stream of new issues, while the former has indeed inevitable. optical brightener

       Worldwide for cancer research have a consensus: in cancer deaths, a third is being put to death, and a third is being scared to death, and only the remaining third, is ineffective treatment indeed killed by the cancer itself. The first two third reason is the same, that is, psychological fear, fear, hence the loss of confidence, thus Huangbuzelu to wrong treatment. inganic pigments

        This conclusion also from another point of view reminds us that health is a state of mind to ensure good health, if the daily struggle with life and death, entangled in a day just eating soy sauce, drink the drink is not already carcinogenic, even if you scraped escaped the pollution, even if you hide an absolutely clean environment, psychological torture can also be lethal. Ancient China "extremely suspicious" examples already suggested this. However, this mentality has, is also not a food safety, environmental monitoring dereliction of tolerance.

Plasticizing agents on how to reduce the harm to human health?

        Recently, liquor containing plasticizers media exposure, people a time to talk about "plastic" color. In fact, we have no need to panic. Plasticizing agent into the body's main way is through food intake, so we can change their lifestyles to reduce the intake of plasticizers, plasticizers effectively reduce the harm to human health.

Plasticizing agent first to know about it. It is also known as plasticizers, plasticizers, are widely used in industry additives, mainly used for all kinds of plastic flame retardant products, such as food packaging, toys, medical bags, medical tubes, vinyl flooring. China is the world's largest consumer of plasticizer, total global consumption of 1/4. 

Plasticizer wide range of the most commonly used industrial phthalates, include phthalic acid diester (DEHP), di-n-butyl phthalate (DBP), o-tolyl acid Dioxide (BBP), diisobutyl phthalate (DIBP), ethyl hexyl phthalate ester (MEHP), etc., but these plasticizers are toxic, not as a food additive. Another plasticizer is benzene, is often said environmental plasticizers include tributyl citrate (TBC), trioctyl citrate (TOC), acetyl tributyl citrate ~ (ATBC), acetyl citrate three Sim ~ (ATOC), epoxidized soybean oil (ESO) as well as other new benzene plasticizing agents, such plasticizers are completely benzene, and the human body is without any toxic effects. After many scholars studied the toxicity of plasticizers mainly reflected in the genetic toxicity, embryo developmental toxicity, reproductive toxicity, neurotoxicity, immunotoxicity and other aspects. In addition, phthalates also, and adult male lung function decline, obesity, diabetes and thyroid function decline and other diseases have a certain relevance.

Air, soil and water have a plasticizing agent is present. But studies show that trace plasticizing agent on human health has not significantly affected. Animal experiments have found that monkeys trace plasticizing agent within 24-48 hours can be excreted through metabolism. Currently, the World Health Organization on the plasticizer DEHP prescribed tolerable daily intake of 0.025 mg per kg. Means that a person weighing 60 kg, if the lifetime daily intake of plasticizers 1.5 mg to 8.5 mg, it may lead to significant health damage. Impact modifier for PVC

Although ubiquitous plasticizer, but most consumers, in their daily lives through some effective measures to reduce the harm plasticizer. First, if the plastic material of the food containers, should be chosen after testing, the heating process is almost no dissolution of the plasticizer, is marked as "microwave heating" of the plastic products, or in the production of plastic products plasticizer benzene . Second, avoid the food and plastic containers prolonged exposure or immersion, to reduce the dissolution of the plasticizer.

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