Irradiation crosslinking low-smoke halogen-free polyolefin cable material as well as preparation method and application thereof

Abstract

The invention discloses an irradiation crosslinking low-smoke halogen-free polyolefin cable material as well as a preparation method and application thereof. The irradiation crosslinking low-smoke halogen-free polyolefin cable material is prepared from the following components in parts by weight: 1 to 25 parts of linear low-density polyethylene, 5 to 30 parts of ethylene-vinyl acetate copolymer, 1 to 20 parts of ethylene-octylene copolymer, 1 to 20 parts of maleic anhydride grafted linear low-density polyethylene, 1 to 20 parts of maleic anhydride grafted ethylene-octylene copolymer, 30 to 80 parts of magnesium hydroxide, 10 to 30 parts of aluminum hydroxide, 1-30 parts of zinc borate, 1-20 parts of a synergistic flame retardant, 1-5 parts of silicone master batch, 1-3 parts of an assistant crosslinker and 1-5 parts of an antioxidant. Specific preparation raw materials are adopted for modifying the low-smoke halogen-free polyolefin cable material, the defects of flame retardance and mechanical performance of an existing flame-retardant wire and cable material are overcome, the cable material with good mechanical performance and flame retardance is provided, and the low-smoke halogen-free polyolefin cable material is suitable for being widely applied to preparation of wires or cables.

Description

technical field [0001] The invention relates to the technical field of electric wire and cable materials, and more specifically relates to a radiation crosslinked low-smoke halogen-free polyolefin cable material and its preparation method and application. Background technique [0002] In the development process of flame retardant materials for wire and cable, the halogen flame retardants widely used in the early stage have significant advantages such as high flame retardant efficiency, less dosage, and low price. However, when the halogen flame retardants burn, they generate a lot of smoke, Corrosive and toxic gases restrict its application to a certain extent. With the continuous development of the national economy and the continuous improvement of people's awareness of safety and environmental protection, the demand for environmentally friendly, high flame retardant, and low heat release materials continues to increase. Therefore, a low-smoke, halogen-free, high flame reta...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the incompatibility of flame retardancy and mechanical properties existing in the existing flame retardant wire and cable materials, as well as the defects and deficiencies of the existing flame retardant wire and cable materials with high heat release peak value and total amount, and provide a A radiation cross-linked low-smoke halogen-free polyolefin cable material

Images