Thermoplastic halogen-free flame-retardant polyphenyl ether elastomer cable material and preparation method thereof

Abstract

The invention discloses a thermoplastic halogen-free flame-retardant polyphenyl ether elastomer cable material and a preparation method thereof. The cable material is used for a soft type electric wire and cable coating, and comprises the following components: polyphenyl ether resin powder, styrene-series elastomers, a plasticizer, a polyolefin elastomer, a compound phosphor-nitrogen flame retardant, an antioxidant and a lubricant. The material components are uniformly stirred in a high-speed mixer, extruded by a twin-screw extruder, pelletized in water, dried and then packaged to obtain a thermoplastic halogen-free flame-retardant polyphenyl ether elastomer cable material finished product. The thermoplastic halogen-free flame-retardant polyphenyl ether elastomer cable material designed by the invention has excellent performance such as good processing performance, halogen-free and flame-retardant performance, low density, high tensile strength, good scraping resistance, good softness, good low temperature resistance, capacity of being extruded at a processing temperature of 200 DEG C-280 DEG C and not decomposed, free of cracks on a sample sheet for seven days under a high-temperature high-humidity environment with 98% humidity and a temperature of 85 DEG C, free of precipitates on surface, and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a cable material and a preparation method thereof, in particular to a thermoplastic halogen-free flame-retardant polyphenylene ether elastomer cable material used for coating layers of soft electric wires and cables and a preparation method thereof . Background technique [0002] As one of the important inventions of human industrial civilization, wires and cables have been widely used in the transmission of various types of electric energy and signals. Compared with other materials, polymers are the preferred materials for coating layers of various wires and cables due to their light specific gravity, easy molding, good comprehensive mechanical properties and excellent performance of cable insulation. [0003] Polyphenylene ether (PPE or PPO for short) is a high-performance thermoplastic engineering plastic with good mechanical properties, chemical stability, dielectric...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a thermoplastic halogen-free flame-retardant polyphenylene ether elastomer cable material and a preparation method thereof, in view of the above shortcomings of the prior art, using styrene-based elastomers with high styrene content, high Fluid polyolefin elastomer and high-efficiency high-temperature-resistant, water-resistant, and humidity-resistant composite phosphorus-nitrogen flame retardants modify polyphenylene ether. The process of the present invention improves the original disadvantages of polyphenylene ether, such as poor fluidity, high hardness, and high production cost. At the same time, the prepared cable material has good processability, halogen-free flame retardant, low density, high tensile strength, good scratch resistance, good flexibility, good low temperature resistance, and can be processed at 200°C-280°C Extrude smoothly without decomposition, and have excellent properties such as no cracks on the surface of the sample and no precipitates on the surface for 7 days in a high-temperature and high-humidity environment of 98% humidity + 85°C

Images