Commonly used plastics processing aids classification details

Affect quality of plastic products of the three elements of resins, additives and processing. Should pay attention to plastic additives development because it is a fine chemical products, as long as the plastic adding a small amount that can play a significant role, while auxiliaries species number and quality of the pros and cons of direct application of plastic products are closely related. Plastics are generally in the synthetic resin a small amount of additives, after appropriate molding made of a. Additive effects are usually from its name shows, is nothing more than improve the processing performance, improve performance, prolong life and reduce product costs. Additive, though small but the effect is not small. Currently additives with plastics applications and technical requirements continue to expand also increasingly developing, variety and effectiveness of individual that its characteristics, so proper selection of additives and formulations, but also the plastics industry an important area of research .Impact modifier for PVC
Plasticizers; Some higher glass transition temperature of the plastic, in order to produce room-temperature under soft products, and improve the processing the melt flow properties, it requires a certain amount of plasticizer. These small molecular weight oily plasticizer and polymer has good compatibility, they are distributed in the polymer chains, reduces their intermolecular force, so that at a certain temperature and pressure tends to molecular chain movement, reach molding purposes. Therefore, plasticizers reduce the plastic glass transition temperature and the lowest molding temperature. Typically the glass transition temperature lower value level plasticizer volume fraction is proportional
Plasticizers can be divided into primary plasticizers and vice plasticizer two categories: primary plasticizer is characterized by compatibility with the resin, good plasticizing, high efficiency, resistance to migration, low volatility, low oil (water ) extraction resistance, low temperature flexibility. Sub plasticizer compatibility is poor, mainly with the main plasticizer used in conjunction with lower cost, it is also known as extenders.PVC lubricant
Plasticizer amount of 75-80% applied PVC is mainly carbon atoms 6-11 fatty alcohols with phthalic synthetic esters, of which the most important is the phthalate octyl (DOP), is a standard plasticizer. In addition, epoxy, phosphoric acid esters and sebacic acid ester plasticizers and chlorinated paraffin class increment like.