Chlorinated polyethylene (CPE) is a polymer material made by chlorination substitution reaction of polyethylene (PE). Its properties can be controlled by adjusting the degree of chlorination (chlorine content 25% -45%), forming characteristics between rubber and plastic, with flexibility, weather resistance, and flame retardancy (UL94 V-0 certified chlorine content ≥ 35%). Its structure destroys the crystallinity of PE by replacing hydrogen atoms with chlorine atoms, forming amorphous regions and endowing it with low-temperature elasticity (maintaining elasticity at -40 ℃) and ozone aging resistance. This material is divided into resin type (CPE) and elastic type (CM), and is widely used in the following fields:
1.Plastic modification: As an impact modifier for PVC, it enhances the weather resistance and low-temperature performance of pipes and boards, and is added to ABS and PS to improve flame retardancy and printing adaptability;
2.Wire and cable: used for coal mine cable sheath, UL/VDE standard wires, ensuring circuit safety with oil resistance, heat resistance, and flame retardant characteristics;
Rubber products: manufacturing hydraulic hoses, automotive tapes, and high flame retardant conveyor belts, optimizing rubber aging resistance through blending;
3.Waterproof material: blended with PVC to produce building waterproofing membrane, suitable for long-term durability requirements in complex environments;
4.Sealing and Coating: Used for building sealants, chemical resistant coatings, especially to maintain adhesion stability in high temperature and high humidity environments. In addition, CPE is also used for automotive components (such as hose accessories) and magnetic material composites, supporting green manufacturing and high-performance application scenarios.
Post time: May-24-2025
