Irradiation cross-linking low smoke halogen-free fire retardant polyolefin cable material

Abstract

The invention discloses a halogen-free cable material which is irradiation cross-linked, has less smoke and can retard the inflaming of polyolefine, and consists of the following components by mass: 30 to 50 percent of ethylene-vinyl acetate copolymer, 0 to 20 percent of high-density polyethylene, 30 to 60 percent of magnesium hydrate, 0 to 10 percent of red phosphorus, 1 to 5 percent of resin acceptor, 0.1 to 1.5 percent of cross linker, 1 to 5 percent of compatilizer, 0.1 to 1.5 percent of antioxidizer and 0.1 to 1.5 percent of lubricating agent. The halogen-free cable material which is irradiation cross-linked, has less smoke and can retard the inflaming of polyolefine overcomes the harm to the environment and the human bodies when retarding the inflaming of polyolefine material by using traditional halogen-containing flame retardants, has less smoke, innoxiousness, green and environment protection, and can ensure good mechanical performance, flame retarding performance and processing performance.

Description

A kind of radiation cross-linked low-smoke halogen-free flame-retardant polyolefin cable material technical field The invention relates to the technical field of flame-retardant polyolefin cable materials, in particular to an irradiation cross-linked low-smoke halogen-free flame-retardant polyolefin cable material. Background technique Wires and cables are widely used in various fields as electrical energy and information transmission bodies. In recent years, the world's cable products have continued to grow. There are nearly 5,000 wire and cable manufacturers in my country. Due to the huge demand for wire and cable products in the transformation of urban and rural power grids, the development of the western region, the Three Gorges Project and large-scale upgrading of communication facilities, cable materials have broad market prospects in my country. In 2005, the total amount of resin consumed by cable materials reached 270kt. Thermoplastic resins for wire and cable ...

AI Technical Summary

Problems solved by technology

However, most of the existing low-smoke halogen-free flame-retardant cable materials have problems such as low mechanical properties and poor processing fluidity, which cannot meet the comprehensive performance requirements of flame-retardant cable materials.