Polyolefin alloy material and preparation method thereof

Abstract

The invention discloses a polyolefin alloy material. The polyolefin alloy material comprises the following formula components in parts by weight: 15-20 parts of polyethylene resin, 40-50 parts of an ethylene-vinyl acetate copolymer, 30-40 parts of a flame retardant, 2-5 parts of an antioxidant, 0.1-3 parts of a cross-linking agent and 0.1-1 part of an assistant. The polyolefin alloy material disclosed by the invention has the beneficial effects that the polyolefin alloy disclosed by the invention is applied to heat-shrinkable sleeves, so that a product is produced by irradiating cross-linkingand continuous expanding through an electron accelerator after forming; under the effect of high-energy rays, a three-dimensional mesh cross-linked structure is formed by a linear polymer material; and the cross-linked polymer material is greatly improved in the aspects of mechanical strength, temperature resistance, chemical solvent resistance, aging resistance and the like, especially the acid resistance and the alkali resistance are greatly improved.

Description

technical field [0001] The invention relates to the field of polymer alloy materials, in particular, to a polyolefin alloy material and a preparation method thereof. Background technique [0002] With the development of the economy, the places where cables need to be used have become diversified, and there are more stringent and diverse requirements for the performance indicators of cable sheath materials, such as insulation, tensile strength, use temperature, flame retardant performance and other indicators There are strict requirements to continuously improve the performance of sheath materials, which is an urgent need for economic and social development. Traditional sheath materials have poor flame retardancy, poor chemical stability, easy deformation at high temperature, poor mechanical properties, and short service life. It brings a lot of inconvenience to the actual use, and even threatens the safety of people's lives and property. Therefore, it is urgent to change the...

AI Technical Summary

Problems solved by technology

[0002] With the development of the economy, the places where cables need to be used have become diversified, and there are more stringent and diverse requirements for the performance indicators of cable sheath materials, such as insulation, tensile strength, service temperature, flame retardant performance and other indicators There are strict requirements, and continuous improvement of the performance of sheath materials is an urgent need for economic and social development. Traditional sheath materials often have poor flame retardancy, poor chemical stability, high temperature deformation, poor mechanical properties, and short service life. And other problems, bring a lot of inconvenience to the actual use, and even threaten the safety of people's lives and property. Therefore, it is urgent to change the original sheath material formula and improve the material performance to meet the diverse needs of the cable market.