Generally speaking, CPE can be divided into three categories in use, type A, type B, and type C. Type CPE135A material is mainly used as toughening agent to modify hard pvc; Type CPE135B material is mainly used in the rubber field, which is usually called cm; Type CPE135C material is mainly used to modify abs. CPE is made by the substitution reaction of high-density polyethylene and chlorine gas through free radicals.
CPE 135A has fine multiple physical property with good low-temperature flexibility and better tearing strength. Its dissolved parameter are nearly same as PVC and it has good affinity with PVC. Under the condition of right processing, it can form a network composition inside of the hard PVC finish products and give them good normal, low-temperature flexibility and impact strength.