Lightweight high-strength flame-retardant composite material for high-speed train carriage and preparation method thereof

Abstract

The invention discloses a light high-strength flame retardant composite material for a high-speed train compartment and a preparation method thereof. The light high-strength flame retardant composite material for the high-speed train compartment is composed of the following components in parts by weight: 30-45 parts of glass fibers, 50-65 parts of homopolymerized PP (Poly Propylene) resin, 10-15 parts of carbon fibers, 1-3 parts of a silane coupling agent, 3-5 parts of maleic anhydride grafted PP (Poly Propylene), 3-5 parts of phenoxytetrabromo-bisphenol A-polycarbonate oligomer, 5-8 parts of corundum, 0.2-1.5 parts of phosphite antioxidant 168, 1-3 parts of stearate, 0.2-0.5 part of cerium oxide and 0.2-0.3 part of a hindered amine light stabilizer. The light high-strength flame retardant composite material has the advantages of good compatibility, no fiber emergence on the surface and low cost; the preparation process is simple and the production process is controllable.

Description

technical field [0001] The invention relates to materials related to high-speed rail, in particular to a light-weight high-strength flame-retardant composite material used in high-speed train carriages and a preparation method thereof. Background technique [0002] With the rapid construction and development of high-speed rail, high-speed rail-related industries are also booming. In order to improve the energy efficiency of vehicles, reducing the weight of the vehicle body has become a new development trend. Major multinational companies have successively developed high-strength flame-retardant lightweight plastics that use powder as the base material and add special short fibers for polycarbonate, release agents, antioxidants and other additives. These plastics have high smoothness. No floating fibers on the surface. However, multinational companies have kept the above technology secret and monopolized my country's powder supply market, resulting in high material costs. ...

AI Technical Summary

Problems solved by technology

However, multinational companies kept the above technology secret and monopolized my country's powder supply market, resulting in high material costs

However, the addition of a variety of low-end additives to the pellets produced by other manufacturers in my country leads to a decrease in the compatibility between polyester and glass fiber, and the dispersion of glass fiber in polyester, and the physical properties and surface finish of the material are not up to the standard. Require

Images