High-flame-retardant high-thermal-conductive PVC (polyvinyl chloride) compound cable material and preparation method thereof

Abstract

The invention particularly relates to a high-flame-retardant high-thermal-conductive PVC (polyvinyl chloride) compound cable material and a preparation method thereof. The high-flame-retardant high-thermal-conductive PVC compound cable material is prepared from the following raw materials in parts by weight: 100 parts of polyvinyl chloride, 31-36 parts of polytetrafluoroethylene micro-powder, 44-49 parts of a perfluoroalkoxy copolymer, 15-25 parts of an ethylene-trifluorochlor oethylene copolymer, 30-35 parts of a composite compatibilizer, 20-30 parts of nano zinc oxide, 42-53 parts of thermal-conductive filler, 10-15 parts of para-aramid fiber and 10-15 parts of modified magnesium hydrate. According to the invention, polytetrafluoroethylene is dispersed in the perfluoroalkoxy copolymer and the ethylene-trifluorochlor oethylene copolymer in a form of micro-powder, and is then blended with polyvinyl chloride, and meanwhile, the thermal-conductive filler, a fire retardant and the aramidfiber are added at proper proportions, therefore, the prepared compound cable material is stable in chemical properties, excellent in physical mechanical properties, electrical insulation properties and flame retardance, high in thermal conductivity, high in tensile strength and strong in toughness, facilitates the production, and reduces production cost.

Description

Technical field [0001] The invention relates to the field of cable manufacturing, in particular to a PVC composite cable material with high flame retardancy and high thermal conductivity and a preparation method thereof. Background technique [0002] Wires and cables are indispensable basic equipment for transmitting electric energy, transmitting information, and manufacturing various motors, electrical appliances, meters, automobiles, machine tools and other equipment, and are essential basic products in an electrified and information society. In 2012, my country surpassed the United States to become the world's largest producer of wires and cables, and its industry output value was second only to the automotive industry in the electrical and electrical industry. As an important basic industry, the wire and cable industry has been hailed as the "blood vessel" and "nerve" of the national economy. It occupies a very important position in my country's national economy and is respon...

AI Technical Summary

Problems solved by technology

Wires and cables are mainly composed of wires, insulating layers, filling structures, shielding layers and sheaths. The materials of insulating layers and sheaths include polyvinyl chloride, polytetrafluoroethylene, etc. PVC materials have excellent mechanical and physical properties. , flexibility, chemical resistance, cheap price, and excellent processing performance, but it is not resistant to oil, organic solvents, hard insulation, and high temperature resistance is difficult to meet the demand

Although polytetrafluoroethylene material has soft mechanical properties, low surface energy, high and low temperature resistance, corrosion resistance, weather resistance, low friction coefficient, high lubrication and other performance properties, it has a high melting point and poor melt leveling performance, which leads to poor processing performance. Poor, difficult to melt extrude