Low temperature-resistant plastic used for power cable and manufacture method thereof

Abstract

The invention discloses low temperature-resistant plastic used for power cables and a manufacture method thereof. The low temperature-resistant plastic used for the power cables is manufactured from the following components in percentage by weight; 50.7 parts of polyvinyl chloride resin powder, 10.4 parts of calcium carbonate, 2.3 parts of non-toxic calcium zinc stabilizers, 2.0 parts of antimony trioxide, 0.1 part of polystyrene propylene additives, 28.5 parts of polyester plasticizers, 5.0 parts of dioctyl diacid and 1. 0 part of soybean oil. The invention adopts the formula to prepare the PVC type plastic used for the power cables, which is resistant to the lower temperature of minus 50 DEG C PVC. Compared with the power cable resistant to minus 30 DEG C and the like of other formulas, the power cable made from the plastic of the invention has the advantages of stronger cold resistance, higher temperature class and wider application place range. Compared with other power cables made of materials such as TPE (Thermoplastic Elastomer) and TPU (Thermoplastic Polyurethane) and the like, the power cable made from the plastic has the advantages of no need of special processing equipment, no change of related manufacturing and processing methods, no need of new plant equipment, simple processing technology and lower cost, and can be directly produced and processed on the traditional mechanicla equipment.

Description

technical field [0001] The invention relates to the technology in the field of power cable insulating materials among industrial polymer materials, in particular to a low-temperature-resistant plastic for power cables and a preparation method thereof. Background technique [0002] At present, enterprises that can use PVC to produce the formula of ordinary domestic power cables at -30°C have passed the bending performance test and performance tests such as combustion and insulation resistance. However, if there is an extreme weather like 2008, the power cable can be There are few that keep performance the same. In order to reduce the occurrence of such problems, many enterprises at home and abroad will choose to use non-PVC materials such as TPE to process and produce ordinary power cables, and their performance can reach -40°C or even lower, but the corresponding equipment costs , Manufacturing costs and processing costs will increase greatly; on the other hand, some foreig...

AI Technical Summary

Problems solved by technology

[0003] 1) The contradiction between cost and performance: on the one hand, the performance is greatly improved compared with that of ordinary power cables, on the other hand, the cost needs to be controlled! How to optimize performance and cost is a relatively big problem

[0004] 2) Long trial production cycle, high cost of trial production, high certification cost, and long certification cycle: This kind of problem is a problem that every enterprise must face: relatively high investment, long test cycle, relatively large risk, market The competition is fierce!