Halogen-free and flame-retardant ABS material and preparation method thereof

Abstract

The present invention discloses a halogen-free and flame-retardant ABS material, which comprises the following components in weight percentage: 40-60% of ABS, 10-30% of TPU, 15-35% of fire retardant, 2-10% of high-glue powders, 1-5% of compatilizer, 0.2-0.8% of antioxidant and 0.4-2% of lubricant. The preparation method comprises the following steps of (1) adding the ABS, the TPU, the compatilizer and the antioxidant in a feed mixer, and uniformly mixing the above materials to obtain a mixture I; (2) adding the fire retardant, the high-glue powders and the lubricant into the mixture I, and uniformly mixing the above materials in the feed mixer to obtain a mixture II; (3) adding the mixture II in a twin-screw extruder to complete the extrusion and granulation process. The prepared halogen-free and flame-retardant ABS material is excellent in physical and mechanical properties and good in fire resistance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant ABS material and a preparation method thereof. Background technique [0002] ABS (acrylonitrile-butadiene-styrene copolymer) is one of the most widely used synthetic resins at present. It has excellent impact resistance, heat resistance, low temperature resistance, chemical resistance and electrical properties, and is easy to use. Processing, stable product size, good surface gloss, etc., easy to paint and color, and can also carry out secondary processing such as surface metal spraying, electroplating, welding, hot pressing and bonding, etc., widely used in machinery, car , electronic appliances, instrumentation, textile and construction and other industrial fields. However, ABS is extremely easy to catch fire and has great potential safety hazards. Therefore, it is of great significance that ABS resin has flame retardant properties. At...

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Problems solved by technology

[0003] Due to the above problems, a lot of research on non-halogenation of materials has been carried out at home and abroad. At present, the halogen-free flame retardants of modified ABS mainly use phosphorus-based flame retardants, such as Chinese patent documents CN 102786767A, CN 104448679A, CN 104004330A, As described in CN 103509318A, flame retardants are mostly phosphoric acid esters such as RDP resorcinol bis(diphenyl phosphate), BDP bisphenol A bis(diphenyl phosphate), TPP (triphenyl phosphate) and RDX Hydroquinone bis[bis(2,6-dimethylphenyl)phosphate], etc., the addition of such flame retardants is too high, and has a great impact on the heat distortion temperature of the product

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