Styrene Acrylonitrile Processing Aid (SAN) is a high molecular weight polymer formed by copolymerization of styrene and acrylonitrile, which has various excellent properties and a wide range of applications. Here is a detailed introduction:
Styrene acrylonitrile processing aids usually have high molecular weight, which can effectively promote the plasticization process of PVC, improve the flowability and processing performance of the melt. It can significantly increase the thermal deformation temperature of PVC products and enhance their heat resistance. Endow PVC products with better surface smoothness and reduce adverse phenomena such as flower spots, flow patterns, and weld marks.
purpose
PVC processing: mainly used for the production of PVC pipes, fittings, profiles, foam boards, wood plastic products, etc., which can improve the processing performance and physical properties of PVC products.
PVC pipes and fittings: Improve the processing performance of PVC pipes and fittings, enhance their heat resistance and surface quality.
PVC foam products: used for producing thin PVC foam products, such as foam boards, shoe soles, etc., to improve their processing and physical properties.
Packaging: Usually packaged in a 25kg/bag, with a polypropylene woven bag on the outside and a plastic bag on the inside.
Styrene acrylonitrile processing aids have become indispensable additives in PVC processing and related plastic product production due to their excellent performance and wide application fields.