A flame retardant high heat dissipation modified polypropylene power pipe and its preparation method

Abstract

The invention provides a flame-retardant high-heat-dissipation modified polypropylene electric tubular product and a preparation method thereof and belongs to the field of electric equipment. The flame-retardant high-heat-dissipation modified polypropylene electric tubular product is mainly prepared from, by weight, 750-1000 parts of polypropylene, 5-200 parts of diamond powder, 5-100 parts of graphene, 5-80 parts of silver powder, 10-180 parts of aluminum nitride powder, 1-10 parts of oxidized polyethylene wax, 10-100 parts of an ethylene-propylene copolymer, 10-100 parts of an ethylene-vinyl acetate copolymer, 10-80 parts of ethylene-propylene-diene-terpolymer rubber, 50-150 parts of heat-resistant polyethylene, 5-30 parts of an antioxidant, 80-300 parts of a flame retardant, 10-100 parts of a rigid packing material, 5-30 parts of a coupling agent and 50-150 parts of chlorinated polypropylene. The electric tubular product can be prepared by using the materials through blending, granulation and extrusion molding and has excellent flame-retardant and heat-conducting performances.

Description

technical field [0001] The invention relates to the field of power consumables, in particular to a flame-retardant high heat dissipation modified polypropylene power pipe and a preparation method thereof. Background technique [0002] With the rapid development of modernization, the population is becoming more and more concentrated, the power consumption is increasing, and the power consumption of industrial development is also increasing. Under normal circumstances, high-voltage cables are buried underground after being protected by high-temperature protective sleeves. Because the high-voltage cable is in a heating state under load, the temperature inside the pipe is often maintained at a high temperature, which shortens the service life of the cable insulation layer, and is prone to aging cracks and short circuits, which in turn lead to safety accidents and unnecessary personal and property losses. . At present, there is an urgent need for a power pipe with good heat dis...

AI Technical Summary

Problems solved by technology

Because the high-voltage cable is in a heating state under load, the temperature inside the pipe is often maintained at a high temperature, which shortens the service life of the cable insulation layer, and is prone to aging cracks and short circuits, which in turn lead to safety accidents and unnecessary personal and property losses.

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