Chlorinated Polyethylene (CPE) is a remarkable powder derived from the suspension chlorination of HDPE in water. As chlorination progresses, crystalline HDPE morphs into an amorphous elastomer. This saturated polymer, appearing as a non-toxic, odorless white powder, boasts extraordinary weather, ozone, chemical, and aging resistance. It also shines with its oil resistance, flame retardancy, and vibrant coloring properties. Impressively flexible even at -30ºC, CPE blends seamlessly with other polymers and features a high decomposition temperature where HCL acts as a catalyst in the dechlorination process.
Chlorinated Polyethylene is crafted through a chlorination substitution reaction of high-density polyethylene (HDPE). It is categorized into resin chlorinated polyethylene (CPE) and elastic chlorinated polyethylene (CM) based on its structure and application. Beyond solo use, CPE can be blended with various thermoplastics like PVC, PE, PP, PS, ABS, and even PU. In the rubber industry, CPE serves as a premium special rubber, often combined with EPR, IIR, NBR, and CSM to enhance performance.
Since the late 1990s, the burgeoning demand for high-performance flame retardant rubber has surged, particularly driven by expansions in the wire, cable, and automotive parts industries. Rubber-type CPE, celebrated for its exceptional properties, offers superior heat resistance, ozone aging resistance, and outstanding flame retardancy.
Chlorinated Polyethylene Resin stands as a revolutionary synthetic material, excelling in impact modification for PVC plastics and performing admirably as synthetic rubber. Its versatility spans a broad spectrum, making it indispensable in cables, wires, hoses, tapes, and numerous rubber and plastic products. CPE can also enhance the flame retardancy, aging resistance, and printability of polypropylene, polyethylene, ABS, and more. This ethylene, polyethylene, and vinyl chloride copolymer, with its molecular saturation and randomly distributed chlorine atoms, is prized in machinery, electric power, chemical, building materials, and mining industries. Its heat, ozone, weather, and aging resistance outstrips most rubbers, proving superior to NBR and CR in oil resistance and excelling over CSM in aging resistance. CPE is also non-toxic, flame-retardant, and corrosion-resistant, with no explosion risk.
Chlorinated Polyethylene finds its paramount applications in: wire and cable (including coal mine cables and those adhering to UL and VDE standards), hydraulic hoses, automotive hoses, tapes, rubber plates, modifications of PVC profile pipes, magnetic materials, and ABS modifications among others.
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