Low-odor antibacterial glass-fiber-reinforced AS (acrylonitrile-styrene) composition and preparation method thereof

Abstract

The invention provides low-odor antibacterial glass-fiber-reinforced AS (acrylonitrile-styrene) composition and a preparation method thereof. The composition comprises components in percentage by weight as follows: 50.4-88.4% of AS resin, 10-30% of glass fibers, 1-10% of a compatilizer, 1-5% of water masterbatch, 0.1-1% of a coupling agent, 0.5-2% of an antibacterial agent and 0.1-3% of an additive, wherein the water masterbatch comprises components in percentage by weight as follows: 1-49% of polypropylene, 50-98% of water and 0.1-5% of mineral filler; the compatilizer is PMMA (polymethyl methacrylate); the coupling agent is a silane coupling agent. A matrix of the composition is the AS resin, and the composition has advantages of excellent performance, low cost, simple preparation technology and the like; the PMMA is used as the compatilizer, the bonding force between the glass fibers and the AS resin is enhanced, and the PMMA is applicable to reinforcement of fiber and resin composite material systems with similar properties.

Description

technical field [0001] The invention belongs to the field of modified plastics, and in particular relates to a low-odor, antibacterial glass fiber reinforced AS composition and a preparation method thereof. Background technique [0002] Acrylonitrile-styrene resin, namely AS resin, is a kind of thermoplastic made by copolymerization of styrene (St) and acrylonitrile (AN) as raw materials. AS resin has excellent performance and excellent Dimensional stability, electrical properties, wear resistance, chemical resistance, dyeability, molding processing and mechanical processing are good, and it is an important engineering plastic. [0003] Glass fiber reinforced plastics have the advantages of high specific strength, corrosion resistance, heat insulation, and low molding shrinkage. Using glass fiber reinforcement can greatly improve the tensile properties of plastics. Adding glass fiber to AS resin can enhance the strength and thermal deformation resistance of AS resin, and ca...

AI Technical Summary

Problems solved by technology

The compound increases the Vicat softening temperature, but the flexural modulus is too low, only 5000MPa; and due to the addition of a large amount of ABS and SMA, the manufacturing cost increases

In Chinese patents CN1362443A and CN1352212A, methacrylic acid-butadiene-styrene copolymer (MBS), AS, SMA, ABS and glass fiber are used as raw materials to blend the AS compound, but it increases the glass fiber Dipping treatment steps, complex process and further cost increase

[0011] The mechanical properties of glass fiber reinforced AS resin largely depend on the bonding strength between AS resin and glass fiber. Due to the poor interface bonding between resin and glass fiber, the reinforcing effect of glass fiber cannot be fully utilized, and the strength of the composite material formed , toughness, heat resistance and other properties are poor

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