Vertically arranged carbon fiber-polycarbonate heat-conducting composite material and preparation method thereof
A thermally conductive composite material, polycarbonate technology, applied in coatings, devices for coating liquids on surfaces, etc., can solve problems such as inability to have high thermal conductivity electronic devices, and achieve low equipment requirements, good product performance, and simple operation. Effect
Pending Publication Date: 2022-05-27
WUHAN UNIV OF SCI & TECH
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The invention discloses a vertically arranged carbon fiber-polycarbonate heat conduction composite material. The preparation method comprises the following steps: taking mesophase pitch-based carbon fibers, graphitizing the mesophase pitch-based carbon fibers, and shearing the mesophase pitch-based carbon fibers to obtain a plurality of chopped carbon fibers; forming the plurality of chopped carbon fibers into a vertically arranged high-density carbon fiber array by using an electrostatic flocking method; the preparation method comprises the following steps: dissolving polycarbonate particles in tetrahydrofuran to form a mixed liquid; and pouring the mixed liquid into a vertically arranged high-density carbon fiber array, and carrying out vacuum liquid-phase impregnation, so as to obtain the vertically arranged carbon fiber-polycarbonate heat-conducting composite material after the polycarbonate is cured. According to the composite material, mesophase pitch-based carbon fibers are used as a heat-conducting filler, and the carbon fibers are vertically arranged in the composite material, so that the heat conductivity of the composite material in the vertical direction is greatly enhanced, and the product performance is good; the preparation method is simple to operate, short in preparation period and low in requirements on equipment.
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Property | Measurement | Unit |
Length | 1.0 | mm |
Thermal conductivity | 900.0 | W/K/m |
Length | 2.0 | mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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