Modified phenylene sulfide engineering plastic with high tensile strength and preparation method thereof

Abstract

Belonging to the technical field of high polymer materials, the invention in particular relates to a modified phenylene sulfide engineering plastic with high tensile strength and a preparation method thereof. The modified phenylene sulfide engineering plastic is composed of the following raw materials by weight: 30-55% of phenylene sulfide, 10-30% of polyphenyl ether, 25-40% of carbon fiber, 7-9% of a compatilizer, 0.5-0.7% of an antioxidant, 0.3-0.5% of a coupling agent, and 0.5-0.6% of a lubricant. The preparation method includes: adding the raw materials except carbon fiber into a high speed mixing machine to conduct mixing according to percentage, then adding carbon fiber to performing mixing, and carrying out extrusion granulation and drying so as to obtain the product. The modified phenylene sulfide engineering plastic has the advantages of environmental protection, energy saving, excellent comprehensive mechanical properties, high impact strength and tensile strength, still has tensile strength of more than 170Mpa when the thickness is 0.5mm, and can replace magnesium alloy and other metal materials to be used in various electrical and electronic fields.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a modified polyphenylene sulfide engineering plastic with high tensile strength and a preparation method thereof. Background technique [0002] As people's requirements for the portability of electronic products are getting higher and higher, electronic products tend to be thinner and lighter, and require higher anti-drop and anti-collision performance. At present, in the design and production of electronic products, in order to achieve better lightness and drop resistance, metal materials such as magnesium alloy, aluminum alloy, and stainless steel are mostly used as shells or frames, but these metal materials have production cycles in mass production. Defects such as long length, unstable quality, intermittent production process, and high cost of metal materials make the price of the product higher. Due to these defects of metal materials, it is promoted ...

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Problems solved by technology

However, the PPS engineering plastics obtained by these patents cannot obtain the tensile strength that meets the anti-fall requirements under the condition of ultra-thin wall thickness (wall thickness ≤ 0.7mm), and cannot meet the requirements of replacing metal materials

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