Continuous fiber composite high thermal conductive material and processing technology thereof

Abstract

The invention discloses a continuous fiber composite high thermal conductive material and a processing technology thereof. When the continuous fiber is non-thermal conductive fiber, the high thermal conductive material comprises, by weight, 20%-60% of the continuous fiber, 0%-5% of a surface-treating agent, 5%-30% of a plastic raw material, 0%-5% of auxiliary agents, 20%-75% of thermal conductive filler and 0%-15% of an impact-resistant modifier; and when the continuous fiber is thermal conductive fiber, the high thermal conductive material comprises, by weight, 20%-70% of the continuous fiber, 0%-5% of the surface-treating agent, 10%-60% of the plastic raw material, 0%-5% of the auxiliary agents, 0%-50% of the thermal conductive filler and 0%-15% of the impact-resistant modifier. The processing technology is shown in the description. Continuous fiber-reinforced high thermal conductive plastic blend with high strength, low temperature resistance and good impact resistance can be prepared by a continuous fiber production device. The continuous fiber-reinforced high thermal conductive plastic blend contains relatively long fiber; and the length of the fiber is the same as that of particles. By adding the thermal conductive fiber, a thermal conductive coefficient can be controlled at 2-120 w / (m.k) and even higher.

Description

technical field [0001] The invention relates to a plastic, in particular to a continuous fiber composite high thermal conductivity plastic and its processing technology. Background technique [0002] At present, there are domestic thermally conductive plastic blends prepared by adding a series of thermally conductive substances such as carbon fiber powder, graphite, aluminum oxide, boron nitride, aluminum nitride, and metal powder into plastics. The thermal conductivity (1~20w / m.k) ), but to achieve a high thermal conductivity greater than 10w / m.k, it is necessary to add a large amount of heat-conducting powder material, the diameter of the added heat-conducting fiber and powder is much smaller than the length of the plastic particle, resulting in the deterioration of the mechanical properties of the material itself, such as tensile strength , Impact strength, impact resistance, bending strength, low temperature resistance. Contents of the invention [0003] The purpose o...

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Problems solved by technology

[0002] At present, there are domestic thermally conductive plastic blends prepared by adding a series of thermally conductive substances such as carbon fiber powder, graphite, aluminum oxide, boron nitride, aluminum nitride, and metal powder into plastics. The thermal conductivity (1~20w / m.k) ), but to achieve a high thermal conductivity greater than 10w / m.k, it is necessary to add a large amount of heat-conducting powder material, the diameter of the added heat-conducting fiber and powder is much smaller than the length of the plastic particle, resulting in the deterioration of the mechanical properties of the material itself, such as tensile strength , impact strength, impact resistance, bending strength, low temperature resistance

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