Nano modified low-shrinkage low-smoke halogen-free flame-retardant polyolefin cable material

Abstract

The invention relates to a nano modified low-shrinkage low-smoke halogen-free flame-retardant polyolefin cable material, prepared from the following raw materials in percent by weight: 40-50 percent of MLLDPE resin, 0.1-1 percent of nano jade powder, 0.1-3 percent of antioxidant, 0.1-3 percent of modified filler, 0.1-3 percent of high pressure polyethylene and 40-60 percent of thermoplastic polyurethane elastomer. The nano modified low-shrinkage low-smoke halogen-free flame-retardant polyolefin cable material has the characteristics of being heat-resistant, anti-aging and strong in shrinkage.

Description

technical field [0001] The invention belongs to the technical field of material science, and in particular relates to a nano-modified low-shrinkage, low-smoke, halogen-free flame-retardant polyolefin cable material. Background technique [0002] With the rapid development of the global economy and the enhancement of human awareness of environmental protection, the requirements for the quality and performance of wires and cables in various fields are getting higher and higher, and there are more and more fires caused by the aging of wires and cables. How to reduce the fire Low smoke, halogen-free, flame retardant, and environmental protection have also become the development direction of the wire and cable industry. Among them, the demand for halogen-free low-smoke flame-retardant cable materials is increasing. At present, most of the production of halogen-free low-smoke flame-retardant cable materials is to add a large amount of magnesium hydroxide or magnesium hydroxide to ...

AI Technical Summary

Problems solved by technology

Among them, the demand for halogen-free low-smoke flame-retardant cable materials is increasing. At present, most of the production of halogen-free low-smoke flame-retardant cable materials is to add a large amount of magnesium hydroxide or magnesium hydroxide to polyolefin substrates to achieve flame retardancy. However, the addition of a large amount of inorganic materials affects the physical and mechanical properties and processing performance of the cable material. Its softness, poor weather resistance, oil resistance, and low temperature resistance at room temperature are not very good.