High temperature resistance high heat conduction PPS/PPO alloy and preparation method thereof

Abstract

The present invention discloses a high temperature resistance high heat conduction PPS / PPO alloy and a preparation method thereof, and belongs to the technical field of polymer materials. The PPS / PPO alloy comprises the following raw materials, by weight, 20-50% of PPS, 8-10% of PPO, 5-8% of a toughening compatibilizing agent, 5-48% of a heat conduction agent, 20-30% of carbon fibers, 0.2-0.5% of an antioxidant, and 0.8-1.5% of a processing aid. The PPS / PPO alloy preparation method comprises: uniformly stirring the heat conduction agent, carrying out stirring mixing on the heat conduction agent and other raw materials (except the carbon fibers), adding the obtained mixture to a zone 1 of a twin-screw extruder (divided into 10 zones), adding the carbon fibers to a zone 10, and carrying out extrusion granulation, drying and injection molding to obtain the product. The high temperature resistance high heat conduction PPS / PPO alloy has characteristics of high heat conduction coefficient, high impact strength, good processing property and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PPS / PPO alloy with high temperature resistance and high thermal conductivity and its preparation method and application. Background technique [0002] Metal materials are electrical and thermal conductive materials in the traditional concept, but with the advancement of polymer science and technology, polymer materials have also become a new role in the field of electrical conductivity and thermal conductivity, which subverts the traditional concept of thermal insulation of polymer materials. Conductive polymer materials are a research hotspot in recent years, and thermally conductive polymer materials have gradually been paid attention to with the continuous expansion of application fields, such as heat exchange engineering, electromagnetic shielding, electrical and electronic, friction materials, etc. The vigorous development of the information industry in recen...

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Problems solved by technology

However, the tensile strength and bending strength of PPS are at the middle level among engineering plastics, but the elongation and impact strength are relatively low. The existing technology uses high filling to improve the thermal conductivity of PPS, which further reduces the physical properties of PPS. Limits the application of PPS

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