Insulating material with high heat resistance and preparation method thereof as well as prepared cable protection pipe

Abstract

The invention relates to the technical field of cable protection pipe materials, in particular to an insulating material with high heat resistance and a preparation method thereof as well as a prepared cable protection pipe. The insulating material with high heat resistance is prepared from the following raw materials in parts by weight: 70 to 90 parts of crosslinked polyethylene resin, 30 to 60 parts of polyvinyl chloride resin, 3 to 8 parts of a heat-resisting filler, 2 to 6 parts of an acrylic ester fiber, 10 to 12 parts of a flame retardant, 8 to 12 parts of a synergistic flame retardant,10 to 12 parts of an impact resisting agent, 12 to 15 parts of a coupling agent and 8 to 16 parts of a compatilizer, wherein the heat-resisting filler is a mixture prepared from calcium carbonate, lignocelluloses and magnesium silicide according to the weight ratio of (3 to 8): (2 to 6): (1.5 to 2). The insulating material with the high heat resistance is relatively high in insulating resistance and high in loading capacity by crosslinking and polymerizing the crosslinked polyethylene resin and the polyvinyl chloride resin, has relatively high properties such as heat resistance, flame retardancy and impact resistance, and is good in mechanical property.

Description

technical field [0001] The invention relates to the technical field of cable protection tube materials, in particular to a high heat-resistant insulating material, a preparation method thereof, and a prepared cable protection tube. Background technique [0002] With the rapid development of wireless communication tools, radio and television industry, the comprehensive promotion of office computer automation, and the rapid popularization of electric vehicles, electromagnetic radiation can be described as ubiquitous and pervasive, becoming a new type of environmental pollution; at the same time, with the development of technology , cables are also widely used in power systems, information transmission, instrument systems and other fields, while PVC materials are light in weight, good in mechanical strength, and have excellent flame retardancy and corrosion resistance, low price and cost, and wide sources. It is widely used in cable protection materials, but its heat resistance...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of wireless communication tools, radio and television industry, the comprehensive promotion of office computer automation, and the rapid popularization of electric vehicles, electromagnetic radiation can be described as ubiquitous and pervasive, becoming a new type of environmental pollution; at the same time, with the development of technology , cables are also widely used in power systems, information transmission, instrument systems and other fields, while PVC materials are light in weight, good in mechanical strength, and have excellent flame retardancy and corrosion resistance, low price and cost, and wide sources. Widely used in cable protection materials, but the heat resistance, ampacity and thermal stability are low, and the electrical insulation performance is still insufficient

[0003] However, electromagnetic radiation can easily affect human health, especially the health of fetuses and young children. Long-term exposure to electromagnetic radiation can induce cancer, such as leukemia, and become the cause of many diseases; The ground passes through the plastic protective shell to generate interference, which interferes with electronic devices such as instruments and meters, and interferes or hinders the normal functions of electronic devices, resulting in inability to use them normally, especially in the fields of aviation flight and medical equipment, which require high precision instruments. In the field, the electromagnetic interference generated by the cable will affect the normal operation of the instrument and easily affect the flight safety of aviation and the accuracy of medical equipment.

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