Filler specialized for breakdown-resistant cable sheath material, and preparation method thereof

Abstract

The invention relates to a filler specialized for a breakdown-resistant cable sheath material. The filler is prepared from the following raw materials by weight: 4-7 parts of isotatic polypropylene, 5-7 parts of magnesium stearate, 6-8 parts of aluminium hydroxide, 4-6 parts of oyster shells, 1-2 parts of chitosan, 5-7 parts of heavy calcium carbonate, 8-10 parts of silicon dioxide, 0.7-1 part of glycidol butyl ether, 60-65 parts of loess, a proper amount of 4-6% hydrochloric acid, a proper amount of water and 15-20 parts of an auxiliary agent. The filler provided by the invention has good insulativity, good density and good breakdown resistance, and has excellent wear resistance and flame retardance. By using the loess, cost is reduced, fineness is high and reinforcing property is good; and by using the auxiliary agent, dispersibility and reinforcing property of the filler are increased and the strength and impact toughness of the cable sheath material are improved.

Description

technical field [0001] The invention belongs to the field of cable sheathing materials, in particular to a special filler for breakdown-resistant cable sheathing materials and a preparation method thereof. Background technique [0002] Cable is a general term for items such as optical cables and cables. There are many uses of cables, mainly used for multiple functions such as control installation, connection equipment, power transmission, etc. It is a common and indispensable thing in daily life. [0003] The outer sheath is a structural part that protects the insulation layer of the wire and cable from environmental factors. The main function of the outer sheath is to improve the mechanical strength of the wire and cable, chemical corrosion resistance, moisture resistance, water immersion, and the ability to prevent the cable from burning. Cable sheath materials include rubber, plastic, nylon and other varieties, all of which have their own excellent characteristics. For ...

AI Technical Summary

Problems solved by technology

Cable sheath materials include rubber, plastic, nylon and other varieties, all of which have their own excellent characteristics. For example, neoprene rubber has good physical and mechanical properties, oil resistance, heat resistance, flame resistance, sunlight resistance, ozone resistance, and Acid and alkali resistance, chemical reagents, high tensile strength, elongation and reversible crystallinity, good adhesion, aging resistance, heat resistance, oil resistance, chemical corrosion resistance, and can be used for a long time at 80 ~ 100 ° C It has a certain flame retardancy; it also has disadvantages, such as poor storage stability

Other sheath materials also have certain disadvantages, and as the application range of cables becomes wider and wider, the performance of sheath materials also needs to be improved, such as heat resistance, low temperature resistance, acid and alkali resistance, corrosion resistance, strength, resistance Aging, UV resistance, flame retardant, wear resistance, toughness, impact resistance and other properties need to be improved, and the performance can be improved by adding fillers