Wear-resistant halogen-free flame-retardant elastomer complex and preparation method thereof

Abstract

The invention provides a wear-resistant halogen-free flame-retardant elastomer complex and a preparation method thereof. The wear-resistant halogen-free flame-retardant elastomer complex comprises the components with the weight percentages as follows: 3 to 35 percent of thermoplastic polyether type polyurethane elastomer, 15 to 35 percent of polyphenylene oxide resin, 15 to 35 percent of compatibilizers, 15 to 25 percent of flame retardants, 5 to 15 percent of plasticizers and 0.5 to 1.5 percent of antioxidants. The preparation method of the wear-resistant halogen-free flame-retardant elastomer complex comprises the steps that the polyurethane elastomer resin, the polyphenylene oxide resin, the compatibilizers, the flame retardants, the plasticizers and the antioxidants are dispersed and mixed by a high speed mixer, and then melted, mixed-milled, extruded, cooled, dried, granulated and packaged by a twin screw extruder. The wear-resistant halogen-free flame-retardant elastomer complex has the characteristics of high halogen-free flame-retardant grade (a UL-94 V-0 grade), good mechanical performance, excellent electrical performance, good wear-resistant performance and good ageing-resistant performance, is easy to extrude, form and process, and is very suitable to be used on power lines, data transmission lines and the like of high-end consumed electrical apparatus.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a wear-resistant halogen-free flame-retardant elastomer compound and its preparation method and application. Background technique [0002] Halogenated compounds such as polyvinyl chloride (PVC) and neoprene have excellent flame retardant properties and are widely used in the wire industry, but they will produce a large amount of toxic gases during fire or incineration, which will cause great damage to the human body and the environment. Hazard, recently, the demand for halogen-free flame-retardant elastomers used to replace PVC wire and cable materials has exploded. [0003] At present, there are many composite materials specially developed for halogen-free flame retardant wires, such as polyolefin / inorganic flame retardant, polyolefin or elastomer / expandable flame retardant, modified polyphenylene ether / phosphorus nitrogen flame retardant , polyurethane / phosphorus nitrogen flam...

AI Technical Summary

Problems solved by technology

This requires that the material itself has excellent mechanical properties, electrical properties, wear resistance and aging resistance, and the existing technology cannot meet this requirement well.

Images