CPE is a polymer material made of high density polyethylene (HDPE) by chlorination substitution reaction. The following is the relevant knowledge of CPE.
I don't know how much you know and understand about this product. It is not very common in life, but it is widely used in the industry. So let's take a look at why stabilizers and preservatives are added to the production of CPE;
This is mainly because CPE is a chlorine-containing polymer, and there is no double bond on the main bond of CPE, so CPE has good heat resistance, and the speed of dehydrochlorination in the production process is much slower than that of polyvinyl chloride. In the process of processing, the vulcanization pipeline will reach a high temperature of 200 degrees, and hydrogen chloride will continue to be produced in this long-term high temperature environment. Therefore, in order to thoroughly understand hydrogen chloride, it is necessary to add hydrogen chloride absorbent to the production formula, so as to ensure the normal progress of vulcanization. At the same time, CPE will be affected by light, heat and oxygen in the upper time and will become aging and decomposition, so in the process of producing CPE must add stabilizers and preservatives.