Solubility | Soluble in cyclohexanone and toluene |
Appearance | Granular |
Color | Off-white |
RTECS | KM6893750 |
TSCA | Yes |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
overview | modified polymer prepared by substitution reaction of polyethylene and chlorine gas, referred to as CPE. With the substitution of chlorine, the crystallinity of polyethylene is destroyed and the glass transition temperature is reduced, but after exceeding a certain chlorine content, the glass transition temperature increases again. |
use | at the end of the 1990 s, the domestic demand for high-performance flame retardant rubber was increasing, especially the development of wire and cable industry and auto parts manufacturing industry, which led to the consumer demand for rubber CPE. Rubber type CPE is a kind of special synthetic rubber with excellent comprehensive performance, heat resistance to oxygen and ozone aging, and good flame retardancy. Chlorinated polyethylene resin is a new type of synthetic material with a series of excellent properties. It is an excellent impact modifier for PVC plastics, and it is also a synthetic rubber with good comprehensive performance. It has a very wide range of applications. It has been widely used in cables, wires, hoses, rubbers, rubber and plastic products, sealing materials, flame retardant conveyor belts, waterproof coils, films and various profiles. CPE can also be blended with polypropylene, high and low pressure polyethylene, ABS, etc. to improve the flame retardant properties, aging resistance and printing properties of these plastics. CPE can be regarded as a random copolymer of ethylene, polyethylene and 1.2 dichloroethylene. Its molecular chain is saturated and polar chlorine atoms are randomly distributed. Because of its excellent physical and chemical properties, it is widely used in machinery, electric power, chemical industry, building materials and mining industries. CPE heat resistance, ozone resistance and weather resistance, aging resistance is better than most rubber, oil resistance is better than nitrile rubber (NBR), neoprene rubber (CR), aging resistance is better than chlorosulfonated vinyl chloride (CSM); acid, alkali, salt and other corrosion properties, non-toxic, flame retardant, no explosion risk. it is mainly used in: wire and cable (wires specified in coal mine cables, UL and VDE standards), hydraulic hose, vehicle hose, adhesive tape, rubber plate, PVC profile pipe modification, magnetic materials, ABS modification, etc. |
features | 1)CPE is a saturated rubber with excellent heat-resistant oxygen aging, ozone aging, acid and alkali resistance and chemical properties. 2)CPE has general oil resistance, among which ASTM No. 1 oil and ASTM No. 2 oil have excellent performance, which is equivalent to NBR. ASTM 3 oil has excellent performance, better than CR, and is equivalent to CSM. 3)CPE contains chlorine, which has excellent flame retardant performance and anti-dripping characteristics. It can be combined with antimony flame retardant, chlorinated paraffin and Al(OH)3 in an appropriate proportion to obtain flame retardant materials with excellent flame retardant performance and low cost. 4)CPE is non-toxic, free of heavy metals and PAHS, and fully meets environmental protection requirements. 5)CPE has high filling performance and can produce products that meet various performance requirements. CPE has good processing performance, and Mooney viscosity (ML121 14) has a variety of brands to choose from between 50 and 100. |
References | http://baike.baidu.com/link?url=fM840CVBwm8GyHam0BvmmOhDEVB9MeFTb64PqmTBBNrnPJ8-NQcpDAzuC8VYjfDt9rKrUoLdk8MlFhDlycpaXOsyja_1DKwMbnL0HZMehebcRuuJAZfZO0P1pOR_XLHLkoQB7_c-J3VN4PHB9DxQ3K http://www.chemyq.com/xz/xz1/549eugeg.htm |