Glass fiber reinforced PPS/PEEK (Polyphenylene Sulfide/Polyether-Ether-Ketone) alloy and preparation process thereof

Abstract

The invention relates to a glass fiber reinforced PPS / PEEK alloy and a preparation process thereof. The glass fiber reinforced PPS / PEEK alloy comprises the following components in parts by mass: 1-99parts of polyphenylene sulfide, 1-99 parts of polyether-ether-ketone, 10-200 parts of glass fibers, 1-50 parts of fillers, 3-10 parts of a compatilizer, 5-30 parts of a flexibilizer, 0.2-2 parts of acoupling agent, 0.2-2 parts of an antioxidant and 0.5-3 parts of processing aids, wherein the sum of mass parts of the polyphenylene sulfide and polyphenyl ether is 100 mass parts. The alloy has hightoughness, impact cracking resistance, excellent strength and rigidity, excellent compatibility, high temperature resistance, flame retardant property, chemical corrosion resistance, solvent resistance, stress cracking resistance, excellent processability and other advantages, and can be safely applied to various electrical and electronic equipment units, vehicle equipment components as well as chemical equipment units even ships, bridges and building materials.

Description

technical field [0001] The invention relates to a glass fiber reinforced PPS / PEEK alloy and a preparation process 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 PEEK 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 is diff...

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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. 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 / PEEK 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

[0005] 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 process of obtaining PPS / PEEK alloys has not been reported in the literature

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