High toughness filling reinforcement poly phenylene sulfide (PPS)/poly-p-phenylene oxide (PPO) alloy and method for preparing same

Abstract

The invention relates to a high toughness filling reinforcement poly phenylene sulfide (PPS) / poly-p-phenylene oxide (PPO) alloy and a method for preparing the same. The alloy comprises 1-99 parts by weight of polyphenylene sulfide, 99-1 part by weight of polyphenyl ether, 10-200 parts by weight of glass fiber, 1-50 parts by weight of filler, 3-10 parts by weight of compatilizer, 5-30 parts by weight of toughening agent, 0.2-2 parts by weight of coupling agent, 0.2-2 parts by weight of antioxidant and 0.5-3 parts by weight of processing agent, wherein the sum of the parts by weight of the polyphenylene sulfide and the polyphenyl ether is 100 parts by weight. The alloy has the advantages of high toughness, impact cracking resistance, excellent strength and rigidity, excellent compatibility, high temperature resistance, inflaming retardance, chemical corrosion resistance, solvent resistance, stress cracking resistance, excellent processing performance and the like, and can be safely applied to various electrical and electronic equipment parts, vehicle equipment parts and chemical equipment parts and even ships, bridges and building materials.

Description

technical field [0001] The invention relates to a high-toughness filled reinforced PPS / PPO alloy and a preparation method thereof. Background technique [0002] In recent years, with the development of various equipment towards the lightweight direction of replacing steel with plastic, materials made of PPS and PPO resins with high heat resistance, flame retardancy and chemical resistance are more and more used in Various electrical and electronic equipment parts, vehicle equipment parts, and chemical equipment parts, even in ships, bridges, and building materials. [0003] As a special engineering plastic, polyphenylene sulfide (PPS) resin has the advantages of high temperature resistance, corrosion resistance, radiation resistance, flame retardancy, non-toxicity, excellent mechanical and electrical properties, and good dimensional stability of products. But at the same time, there are also the following disadvantages: ①The fluidity is too high at high temperature, and it ...

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Problems solved by technology

But at the same time, there are also the following disadvantages: ①The fluidity is too high at high temperature, and it is difficult to inject resin alone; ②The cost is high, and the price is twice as high as that of general engineering plastics; ③The impact strength is poor, the product is brittle, and the welding strength is not Good; ④ Due to its excellent chemical resistance, its coating and coloring properties are not ideal, so it is necessary to modify

However, the above-mentioned patent does not add a toughening agent, and the impact strength of the resulting PPS / PPO alloy is limited. If it is used in safety-related fields, such as battery packs for electric vehicles, poor impact strength will easily lead to cracking of the battery pack after impact, electrolysis Liquid leakage, causing safety hazards such as leakage, short circuit or even explosion, so a toughening agent must be added to improve the impact strength of the alloy

[0006] At present, in the presence of compatibilizers, silicone oil or fluorine oil-extended SEB, SEB-g-MAH, SEBS or SEBS-g-MAH, silicone modified resins, organic fluorine modified resins, silicon-containing elastomers , fluoroelastomers, and rubber elastomers modified or copolymerized with amino groups, epoxy groups, isocyanate groups, anhydride groups, ester groups, carboxyl groups, olefin groups and aromatic olefin groups, silicon-containing elastomers, fluoroelastomers Body, etc., as a toughening agent, and using glass fibers and fillers as fillers, the method of obtaining PPS / PPO alloys has not been reported in the literature

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