High insulation chlorinated polyethylene track cable insulator and preparation method thereof

Abstract

The invention discloses a high insulation chlorinated polyethylene track cable insulator and a preparation method thereof, wherein the high insulation chlorinated polyethylene track cable insulator consists of the following by weight: 40-50 parts of chlorinated polyethylene, 40-50 parts of Ethylene-Propylene-Diene Monomer, 10-15 parts of calcium stearate, 3-5 parts of aluminum silicate, 3-5 partsof magnesium oxide, 8-10 parts of tin oxide, 3-5 parts of plasticizer, 10-15 parts of heavy calcium, 2-5 parts of lubricant, 4-6 parts of stabilizer, and 1-3 parts of antioxidant. Cable materials produced by the preparation method have good electrical and mechanical physical properties, good weather resistance and high temperature resistance.

Description

technical field [0001] The invention belongs to the field of track cables, and in particular relates to a highly insulating chlorinated polyethylene track cable insulating material and a preparation method thereof. Background technique [0002] Wire and cable are common power transmission materials, and they are required to have certain insulation properties during use. Commonly used insulating materials for wire and cable include thermoplastic elastomer (TPE), polyvinyl chloride (PVC), low-density polyethylene (LDPE), cross-linked synthetic polymer (XL), chlorinated polyethylene (CPE) and EPDM rubber etc. Among them, chlorinated polyethylene (CPE) is a polymer material obtained from high-density polyethylene (HDPE) through a chlorination substitution reaction. [0003] CPE has excellent weather resistance, ozone resistance, chemical resistance and aging resistance, good oil resistance and flame retardancy, and can be mixed with other polymer materials such as PVC, PE and ...

AI Technical Summary

Problems solved by technology

At present, the production process of chlorinated polyethylene (CPE) mainly includes water phase suspension method and acid phase suspension method. The traditional water phase suspension method needs to go through deacidification, neutralization, dealkalization and other processes, which will bring more conductive ions, and These conductive ions cannot be completely removed and have a great impact on electrical performance

In addition, due to the high acid concentration (about 28%) of the product using the acid phase suspension method, the subsequent vacuum filters, centrifuges, dryers and other equipment need to be made of materials with very good acid resistance, and the investment cost is very high. , and the material particles obtained by this method are relatively coarse, which needs to be ground and consumes more electric energy. In addition, special deionized water is used for its production. Therefore, the entire production cost is also very high, and the economic value is not obvious.