Polyphenylene sulfide resin composition as well as preparation method and application thereof

Abstract

The invention relates to a polyphenylene sulfide resin composition as well as a preparation method and an application thereof. The polyphenylene sulfide resin composition is prepared from the following components in percentage by weight: 20 to 65 percent of PPS resin, 3.0 to 20 percent of PA resin, 20 to 60 percent of glass fiber, 0.5 to 10 percent of a stress release agent, 0.3 to 3.0 percent ofan antioxidant, 0.3 to 2.0 percent of an anti-aging agent and 0.5 to 3.0 percent of a lubricating agent. Through the synergistic effect of the PA resin and the stress release agent, the synergistic effect of the PA resin and the anti-aging agent is achieved; according to the invention, the PPS engineering plastic is used as a raw material, the proportion of the components is optimized, the electroplatable material with excellent weather resistance is prepared, the electrical property, mechanical property, heat resistance, creep resistance, chemical resistance and aging resistance of the PPS engineering plastic are maintained, and the material is suitable for antenna oscillator base materials.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a polyphenylene sulfide resin composition and a preparation method and application thereof. Background technique [0002] Polyphenylene sulfide resin (PPS) is also known as polyphenylene sulfide or poly-p-phenylene sulfide. Linear polyphenylene sulfide resin is a crystalline polymer, and its chemical structure is: [0003] [0004] Because its molecular chain is a rigid structure connected by benzene rings through sulfur atoms, it has some unique properties. It not only has the properties of general engineering plastics, but also has high thermal stability and excellent chemical corrosion resistance. , good flame resistance, non-toxic. It can be formed by a variety of methods, and can be precisely formed, and the products can also be electroplated, and can be used as high-temperature resistant structural materials and high-temperature resistant insulating materi...

AI Technical Summary

Problems solved by technology

[0007] (2) Mechanical properties: The mechanical properties of pure PPS are not high, especially the impact strength is relatively low

[0010] (5) Chemical resistance: One of the biggest features of PPS is good chemical corrosion resistance, and its chemical stability is second only to F4; PPS is resistant to most acids, esters, ketones, aldehydes, phenols and aliphatic hydrocarbons, aromatic hydrocarbons, chlorinated Hydrocarbons, etc. are stable, and there is no solvent that can dissolve polyphenylene sulfide below 200 ° C, and it is extremely resistant to inorganic acids, alkalis and salts

The PPS / PPO alloy engineering plastic used in the NMT technology of the invention has a low dielectric constant, and the dielectric constant is 2.8-3.3 under 5GHz test conditions; the drawing force of the PPS / PPO alloy engineering plastic and metal injection molding is high, and the drawing force of the aluminum alloy Force over 180kgf / cm 2 ;The highest can reach 230kgf / cm 2 , but the internal stress of the material is large, it is easy to stress crack during use, the bonding layer of the electroplating line is easy to fall off, and the electroplating and processability are poor.

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