High-crystallinity polyphenylene sulfide composite material easy for machining shaping, preparation method and application thereof

Abstract

The invention relates to the technical field of high polymer materials, in particular to a high-crystallinity polyphenylene sulfide composite material easy for machining shaping. The high-crystallinity polyphenylene sulfide composite material easy for machining shaping provided by the invention comprises the following raw materials by weight: 40-100 parts of polyphenylene sulfide resin, 0-60 partsof a reinforcing filler and 0.3-2 parts of fluorocarbon resin, wherein the fluorocarbon resin is a copolymer formed by copolymerization of vinylidene fluoride and other fluorine-containing monomers,preferably, the fluorocarbon resin is one of or a combination of several of a vinylidene fluoride homopolymer, a vinylidene fluoride-trifluoroethylene copolymer and a vinylidene fluoride-tetrafluoroethylene copolymer. The high-crystallinity polyphenylene sulfide composite material easy for machining shaping provided by the invention can obviously improve the crystallization temperature and crystallization rate of polyphenylene sulfide, and then the production efficiency of a product injection molding processing plant is improved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a highly crystalline polyphenylene sulfide composite material that is easy to process and shape, and a preparation method and application thereof. Background technique [0002] Polyphenylene sulfide (PPS) is a thermoplastic engineering plastic containing phenylthio groups in the molecular main chain, which has the advantages of hard and brittle, high crystallinity, flame retardant, good thermal stability, high mechanical strength, and excellent electrical properties. The sixth largest variety of engineering plastics and the largest variety of special engineering plastics are widely used in many fields such as electronics, automobiles, pharmaceuticals, chemicals, and machinery manufacturing. [0003] The main disadvantage of the commonly used polyphenylene sulfide (PPS) is that the crystallization temperature is not high and the crystallization rate is relatively slow. I...

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Problems solved by technology

[0006] In order to overcome the technical defects of slow crystallization rate and incomplete crystallization in the processing and molding process of existing polyphenylene sulfide composite materials, the present invention provides a highly crystalline polyphenylene sulfide composite material that is easy to process and shape. The sulfide composite material has a high crystallization temperature and a narrow crystallization half-peak width. During the processing and molding process, it can quickly initiate crystallization when it enters the mold to cool, which promotes more complete crystallization of the molded product and ensures product quality.

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