Chlorinated polyethylene (CPE) is a remarkable powder product derived from the suspension chlorination of HDPE in the water phase. As the chlorination degree intensifies, the robust crystalline HDPE transforms into a pliant amorphous elastomer. This saturated polymer material, presented as a pristine white powder, is both non-toxic and tasteless. It boasts superior weather resistance, ozone resistance, chemical resistance, and an impressive aging resistance. Moreover, it features excellent oil resistance, flame retardancy, and coloration properties. Its remarkable toughness allows it to remain flexible even at temperatures as low as -30ºC. Additionally, it offers excellent compatibility with other polymer materials. With a high decomposition temperature, it decomposes into HCL, which can catalyze the dechlorination reaction of CPE.
Chlorinated polyethylene is a distinguished polymer material produced through the chlorination substitution reaction of high-density polyethylene (HDPE). Depending on its structure and application, CPE can be categorized into resin chlorinated polyethylene (CPE) and elastic type chlorinated polyethylene (CM). Apart from its standalone use, thermoplastic resins can be seamlessly blended with various other polymers such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS, and even polyurethane (PU). In the realm of the rubber industry, CPE serves as a high-performance, premium special rubber. It can also be amalgamated with ethylene propylene rubber (EPR), butyl rubber (IIR), nitrile butadiene rubber (NBR), and chlorosulfonated polyethylene (CSM), enhancing their properties.
In the late 1990s, the domestic demand for high-performance flame retardant rubber surged, propelled by the advancements in the wire and cable industry and the burgeoning auto parts manufacturing sector. This increasing demand for rubber CPE, a special synthetic rubber with outstanding comprehensive properties, heat resistance, oxygen ozone aging, and commendable flame retardancy, marked a significant shift in the market.
Chlorinated polyethylene resin is a cutting-edge synthetic material known for its plethora of excellent properties. It stands out as an exceptional impact modifier for PVC plastic and serves as a synthetic rubber with superb comprehensive performance. Its versatile applications span across cables, wires, hoses, tapes, rubber, plastic products, sealing materials, flame-retardant transport belts, waterproof rolls, films, and numerous profiles. Additionally, CPE can be blended with polypropylene, high and low-pressure polyethylene, ABS, among others, to enhance the flame retardancy, aging resistance, and printing performance of these plastics. Recognized as a random copolymer of ethylene, polyethylene, and vinyl chloride, its molecular chain saturation and randomly distributed polar chlorine atoms contribute to its excellent physical and chemical properties. Consequently, CPE is extensively utilized in machinery, electric power, chemical, building materials, and mining industries. Its heat resistance, ozone and weather resistance, and aging resistance surpass most rubbers. Moreover, it offers better oil resistance than nitrile (NBR) and neoprene (CR), and superior aging resistance compared to chlorosulfonated polyethylene (CSM). It is also resistant to acids, alkalis, salts, and other corrosive substances, while being non-toxic, flame retardant, and without explosion risk.
Primarily utilized in: wire and cable (coal mine cables, UL and VDE standards specified wires), hydraulic hoses, automotive hoses, tapes, rubber plates, PVC profile pipe modification, magnetic materials, ABS modification, and more.
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