Chlorinated polyethylene is a polymer material made from polyethylene plastic (HDPE) that is chlorinated instead of reacted. Chlorinated polyethylene can be divided into resin chlorinated polyethylene (CPE) and elastic chlorinated polyethylene polyethylene (CM) these two types. The following is a performance characteristic of chlorinated polyethylene.
Chlorinated polyethylene (CPE or CM for short) is a polymer synthetic material modified by chlorination of polyethylene. It has good flexibility, heat aging resistance, climate resistance and ozone resistance, because its molecular formula is linear saturation and irregular structure. The molecular formula contains a very large proportion of chlorine, so it has good oil resistance, chemical resistance and flame retardant. The properties of chlorinated polyethylene vary greatly depending on the production method and the variety of raw polyethylene. The important factors for the properties of raw polyethylene varieties are chlorine content, chlorine distribution and crystal shape.
The raw material variety and characteristics of polyethylene control the processing properties and physical and mechanical properties of chlorinated polyethylene. Chlorination level has a great impact on chlorinated polyethylene, when the chlorine content is less than 15%, it is plastic; The chlorine content of 16 ~ 24% of thermoplastic elastomers; The chlorine content is 25 ~ 48% for rubber elastomers; Chlorine content of 49 ~ 58% is similar to leather semi-elastic hard polymer; When the chlorine content is as high as 73%, it becomes a brittle resin.
Differences in the distribution of chlorine and crystal shape lead to differences in the physical properties and processing properties of rubber.
