A kind of polycarbonate heat-conducting composite material and preparation method thereof

A heat-conducting composite material, polycarbonate technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of high thermal conductivity of heat-conducting PC, reduced performance of PC, large amount of addition, etc., to achieve good heat conduction performance, improve The effect of stability
CN104559109BActive Publication Date: 2016-05-25DONGGUAN HONOUR E P
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGGUAN HONOUR E P
Publication Date
2016-05-25

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Abstract

The invention provides a polycarbonate heat-conducting composite material and a preparation method thereof. The composite material comprises components in parts by weight as follows: 100 parts of polycarbonate, 40-70 parts of heat-conducting masterbatch, 10-30 parts of glass fibers, 0.2-0.8 parts of a main antioxidant, 0.3-1.2 parts of an auxiliary antioxidant and 0.5-2.0 parts of a lubricant, wherein the heat-conducting masterbatch comprises components in parts by weight as follows: 30 parts of porous polycarbonate powder, 10-20 parts of carbon black, 5-20 parts of graphene, 5-10 parts of carbon nano-tubes and 5-15 parts of a compatilizer. The preparation method comprises steps as follows: A, preparation of the heat-conducting masterbatch; B, machining of the heat-conducting composite material: the polycarbonate, the heat-conducting masterbatch obtained in Step A, the main antioxidant, the auxiliary antioxidant and the lubricant are mixed in a high-speed mixer, the glass fibers are laterally fed through accurate calibration and extruded by a twin-screw extruder for granulation, and the polycarbonate heat-conducting composite material with higher heat conductivity is prepared.
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Description

technical field

[0001] The invention relates to the field of preparation of modified composite materials, in particular to a polycarbonate heat-conducting composite material and a preparation method thereof. Background technique

[0002] Polycarbonate (PC) is an engineering plastic with superior comprehensive performance, and it is also the fastest growing general-purpose engineering plastic in recent years. It has the advantages of excellent impact toughness, electrical insulation, creep resistance, transparency and non-toxicity. , At present, it is widely used in the casings of automobiles, sports equipment, office equipment, etc., and electronic and electrical components. The parts of some of the above-mentioned application equipment often have fixed and heat-dissipating metal inserts. However, the molding shrinkage of PC and metal is very different, so stress cracking is prone to occur due to the different shrinkage during the injection molding process, or the plastic pa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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