Environmental protection flame retardant styrene resin

Abstract

The invention relates to an environmentally friendly flame retarding styrene based resin in a polymer material technical field. The environmentally friendly flame retarding styrene based resin is prepared by the high-speed mixing of styrene based resin, main flame retardant, auxiliary flame retardant, toughening agent, antioxidant and stabilizer, twin-screw extrusion, hot cutting and air cooling. The color of the environmentally friendly flame retarding styrene based resin can be chosen arbitrarily, has good fluidity and stability, can be widely applied to injecting and extruding processing, and can enable users to change for using under the manufacturing condition of present materials or by small regulation without complicated and lengthy regulation for a new technology; and solves limitation problems like an European Union RoHS instruction, and provides an excellent material which can be suitable for a larger market for a majority of plastic product manufacturers. The environmentally friendly flame retarding styrene based resin of the invention realizes a UL90 VO grade of flame retardant only under the situation of slightly decreasing resin mechanical performance, and cost is only kept at a level of using polybrominated biphenyl or polybrominated diphenyl ether products.

Description

Technical field [0001] The invention relates to the technical field of polymer materials, in particular to an environmentally friendly flame-retardant styrene resin. Background technique [0002] Halogen flame retardants (mainly chlorine and bromine) are currently the most efficient flame retardants. However, chlorine flame retardants are generally difficult to use at high temperatures. Bromine flame retardants are highly effective and inexpensive in plastics. The flame retardant industry has been widely used for a long time, especially polybrominated biphenyls and polybrominated diphenyl ethers. In 2003, the European Union promulgated the "Directive on the Use of Certain Hazardous Substances in Electronic and Electrical Equipment" (RoHS Directive), which was implemented on July 1, 2006, stipulating that the content of polybrominated biphenyls and polybrominated diphenyl ethers contained in flame-retardant plastics should not be More than 1000PPM. This move has been followed by o...

AI Technical Summary

Problems solved by technology

This makes the traditional product market that uses polybrominated biphenyls and polybrominated diphenyl ethers as flame retardants gradually shrink

However, most of the halogen-free flame retardants are too much added, which leads to a severe decline in other properties of the material, a sharp increase in cost, or their own price is too high, and the market appeal is limited.