Chlorinated polyethylene (CPE) is a powder product derived from the suspension chlorination of HDPE in the water phase. As the chlorination degree increases, the original crystalline HDPE morphs into an amorphous elastomer. Chlorinated polyethylene (CPE) is a saturated polymer material, appearing as a white powder. It is non-toxic and odorless, offering exceptional weather resistance, ozone resistance, chemical resistance, aging resistance, and excellent oil resistance. Additionally, it boasts flame retardant and coloring properties, good toughness (remaining flexible at -30ºC), and superior compatibility with other polymer materials. With a high decomposition temperature, it decomposes HCL, which can catalyze CPE's dechlorination reaction.
Chlorinated polyethylene is a versatile polymer material prepared from high-density polyethylene (HDPE) via a chlorination substitution reaction. Based on structure and usage, CPE is categorized into resin chlorinated polyethylene (CPE) and elastic chlorinated polyethylene (CM). Beyond standalone use, thermoplastic resins can be blended with PVC, PE, PP, PS, ABS, and even PU. In the rubber industry, CPE serves as a high-performance, high-quality special rubber and can be blended seamlessly with EPR, IIR, NBR, CSM, and other rubbers.
In the late 1990s, domestic demand for high-performance flame retardant rubber surged, particularly due to the growing wire and cable industry and auto parts manufacturing. Rubber-type CPE emerged as a special synthetic rubber with outstanding properties, including excellent heat resistance, ozone aging resistance, and superior flame retardancy.
Chlorinated polyethylene resin is a novel synthetic material with a series of remarkable properties. It serves as an excellent impact modifier for PVC plastic and as a synthetic rubber with comprehensive performance benefits. Its wide range of applications includes cables, wires, hoses, tapes, rubber and plastic products, sealing materials, flame-retardant transport belts, waterproof rolls, films, and various profiles. CPE can also be blended with polypropylene, high and low-pressure polyethylene, and ABS to enhance the flame retardancy, aging resistance, and printing performance of these plastics. As a random copolymer of ethylene, polyethylene, and vinyl chloride, its molecular chain saturation and random distribution of polar chlorine atoms grant it superior physical and chemical properties, making it highly valuable in the machinery, electric power, chemical, building materials, and mining industries. CPE's heat resistance, ozone weather resistance, oil resistance, and aging resistance surpass most rubbers, including nitrile (NBR), neoprene (CR), and chlorosulfonated vinyl chloride (CSM). Furthermore, it offers excellent acid, alkali, and salt corrosion resistance, is non-toxic, flame retardant, and poses no explosion risk.
Primarily used in: wire and cable (including coal mine cables and wires specified by UL and VDE standards), hydraulic hoses, automotive hoses, tapes, rubber plates, PVC profile pipe modifications, magnetic materials, and ABS modifications.
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