1.What are the applications of
Chlorinated Polyethylene-CPE?
Chlorinated polyethylene,CPE can be processed by injection molding and extrusion molding. However, because CPE contains a large number of chlorine atoms, a certain proportion of heat stabilizers, antioxidants and light stabilizers should be added to the CPE before molding to protect the stability of its composition and performance. CPE with low chlorine content can also be used for rotational molding and blow molding.
At present, chlorinated polyethylene is mainly used as a modifier of PVC, HDPE and MBS in the plastic products industry. After blending a certain proportion of CPE in polyvinyl chloride resin, products such as pipes, plates, wire insulation coatings, profiles, films, shrink films, etc. can be extruded using general PVC processing equipment; it can also be used to coat and compress mold Plastic, lamination, adhesion, etc .; used as modifiers of PVC and PE, can improve product performance, improve the elasticity, toughness and low temperature performance of PVC, brittleness temperature can be reduced to -40 ℃; weather resistance , Heat resistance and chemical stability are also better than other modifiers; As a modifier of PE, it can improve the printability, flame retardancy and flexibility of its products, and increase the density of PE foam.
2.What role does CPE play in plastics production?
Chlorinated polyethylene (CPE) is a saturated polymer material. Its appearance is white powder, non-toxic and odorless. It has excellent weather resistance, ozone resistance, chemical resistance and aging resistance. It has good oil resistance, flame resistance and coloring. performance. Good toughness (still flexible at -30 ° C), good compatibility with other polymer materials, high decomposition temperature, decomposition to produce HCl, HCL can catalyze the dechlorination of CPE. Chlorinated polyethylene is a polymer material made from high-density polyethylene (HDPE) through a chlorination substitution reaction. According to different structures and applications, chlorinated polyethylene can be divided into two types: resin-type chlorinated polyethylene (CPE) and elastomer-type chlorinated polyethylene (CM). In addition to being used alone, thermoplastic resins can also be blended with resins such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS, and even polyurethane (PU). In the rubber industry, CPE can be used as a high-performance, high-quality special rubber, and can also be used with ethylene-propylene rubber (EPR), butyl rubber (IIR), nitrile rubber (NBR), chlorosulfonated polyethylene (CSM), etc Other rubber blends.
