A kind of halogen-free flame-retardant ABS composite material and preparation method thereof

Abstract

The invention relates to a halogen-free and flame-retardant ABS (Acrylonitrile Butadiene Styrene) composite material which is composed of the following raw materials in parts by mass: 70-80 parts of ABS, 13-23 parts of modified polyaryl phosphate ester, 3 parts of modified zinc borate, 6-8 parts of modified phenolic novolac resin, 0.5 part of a silane coupling agent, 1 part of white oil, 0.5 partof a lubricating agent, 5-7 parts of a compatilizer, 2-6 parts of a flexibilizer and 2 parts of aids. The modified polyaryl phosphate ester, the modified zinc borate and modified phenolic novolac resin are weakened. The invention further provides a preparation method of the material. The environmental-friendly flame-retardant ABS composite material is prepared in a blending manner and has an excellent flame-retardant property, the filler and matrix resin have excellent compatibility and good mechanical property, and the processing procedure is simple and easy to popularize.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a halogen-free flame-retardant ABS composite material and a preparation method thereof. Background technique [0002] ABS resin is a typical thermoplastic, which is formed by ternary copolymerization of acrylonitrile, butadiene and styrene. The microstructure of ABS is a "sea-island structure" in which styrene-acrylonitrile copolymer (SAN) is the sea phase, polybutadiene (PB) is the island phase, and PB is dispersed in SAN. Such as figure 1 It is a cross-sectional electron microscope photo of ABS after it has been brittle broken by liquid nitrogen. The two-phase structure of ABS can be clearly seen from the electron microscope picture. Due to the two-phase structure of ABS, ABS has the advantages of polyacrylonitrile (PAN), polybutadiene (PB) and polystyrene (PS). Therefore, ABS has good heat resistance and chemical stability; excellent impact resistanc...

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Problems solved by technology

[0004] Aiming at the above-mentioned problems in the prior art that the amount of flame retardant is large, the compatibility of the system is poor, and the mechanical properties of the composite material are affected, the present invention aims to provide a kind of flame retardant with excellent performance, which improves the dispersion effect of the matrix and the filler. Excellent compatibility of matrix resin, improved mechanical properties, relatively simple processing process, easy to popularize flame-retardant ABS composite material and preparation method thereof

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