Chlorinated polyethylene (CPE) is an innovative polymer crafted through the suspension chlorination of HDPE in water. As the chlorination degree ascends, crystalline HDPE transforms into a flexible, amorphous elastomer. This white powder showcases a plethora of remarkable properties: non-toxic and tasteless, it boasts exceptional weather resistance, ozone resistance, chemical and aging resistance, alongside superb oil resistance, flame retardant capabilities, and vibrant coloring properties. Notably, its toughness endures even at -30ºC, and it harmonizes well with other polymer materials. With a high decomposition temperature, CPE decomposes to release HCL, which can then catalyze further dechlorination, showcasing its multifaceted utility.
Derived from high-density polyethylene (HDPE) through chlorination substitution, chlorinated polyethylene is a versatile polymer. It is categorized into resin chlorinated polyethylene (CPE) and elastic type chlorinated polyethylene (CM). Beyond its standalone applications, it seamlessly blends with a variety of thermoplastic resins such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS, and even polyurethane (PU). In the rubber industry, CPE is revered as a high-performance, top-quality special rubber, often blended with ethylene propylene rubber (EPR), butyl rubber (IIR), nitrile butadiene rubber (NBR), and chlorosulfonated polyethylene (CSM), enhancing its flexibility and utility.
Since the late 1990s, the surge in domestic demand for high-performance flame retardant rubber, especially driven by the burgeoning wire, cable, and auto parts manufacturing industries, has significantly amplified the market for rubber CPE. This synthetic marvel is renowned for its outstanding comprehensive properties, including excellent heat resistance, oxygen and ozone aging resistance, and superior flame retardancy, making it indispensable in these evolving sectors.
Chlorinated polyethylene resin is heralded as a groundbreaking synthetic material, lauded for its array of excellent properties. It serves as a magnificent impact modifier for PVC plastic and doubles as a high-performance synthetic rubber. Its application spectrum is vast, encompassing cables, wires, hoses, tapes, rubber and plastic products, sealing materials, flame-retardant transport belts, waterproof rolls, films, and a multitude of profiles. Additionally, blending CPE with polypropylene, high and low-pressure polyethylene, and ABS significantly enhances the flame retardancy, aging resistance, and printing performance of these plastics. As an ethylene, polyethylene, and 1.21-2 vinyl chloride random copolymer, CPE's molecular chain saturation and random distribution of polar chlorine atoms confer it with exceptional physical and chemical properties, making it indispensable in machinery, electric power, chemical, building materials, and mining industries. Its heat resistance, weather and aging resistance, and superior oil resistance outshine many rubbers, making it a stalwart material in resisting acid, alkali, and salt corrosion, all while being non-toxic and flame retardant.
Primarily utilized in: wire and cable manufacturing (including coal mine cables and those meeting UL and VDE standards), hydraulic hoses, automotive hoses, tapes, rubber plates, PVC profile pipe modifications, and magnetic materials. Its modifications also extend to ABS and beyond.
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