Polyethylene heat-dissipating coating material and preparation method thereof
A heat-dissipating coating and polyethylene technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of reduced performance, high specific surface energy, large specific surface area, etc., and achieve enhanced dispersibility, good dispersibility, and high graft density. Effect
Inactive Publication Date: 2015-12-09
BENGBU TIMES ELECTRONICS
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Problems solved by technology
Nano-silica has a large specific surface area and high specific surface energy. It is easy to agglomerate in the coating to form secondary particles, resulting in a decrease in the performance of strengthening and toughening. At the same time, the hydroxyl groups on the surface also strengthen this phenomenon.
Method used
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Experimental program
Comparison scheme
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Embodiment Construction
[0022] A kind of heat-dissipating polyethylene paint, it is made up of the following raw materials of weight part:
[0023] Styrene maleic anhydride copolymer 12, propynyl alcohol 6, tetrahydrofuran 90, graphene 4, nano silicon dioxide 16, silane coupling agent KH5600.2, dimethylformamide 700, sodium nitride 4, trichloride Aluminum 0.04, 2% sodium ascorbate solution 1.6, 2% copper sulfate solution 1.8, high-density polyethylene 120.
[0024] A kind of preparation method of described polyethylene heat-dissipating paint, comprises the following steps:
[0025] (1) Mix styrene-maleic anhydride copolymer, propynyl alcohol, and tetrahydrofuran, heat and stir at 50°C for 10 hours, distill under reduced pressure, remove the liquid, and dry in vacuum to obtain an alkynyl copolymer;
[0026] (2) Mix graphene and nano-silica, and ball mill for 30 minutes;
[0027] (3) Take the above-mentioned ball-milled particles, add them to 20 times of toluene, ultrasonically disperse for 2 hours, ...
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Abstract
The present invention discloses a polyethylene heat-dissipating coating material, which comprises the following raw materials by weight: 12-15 parts of a styrene-maleic anhydride copolymer, 6-10 parts of propargyl alcohol, 90-100 parts of tetrahydrofuran, 4-7 parts of graphene, 16-20 parts of nanometer silica, 0.2-0.3 part of a silane coupling agent KH560, 700-800 parts of dimethylformamide, 4-5 parts of sodium nitride, 0.04-0.05 part of aluminum trichloride, 1.6-2 parts of a 2-3% sodium ascorbate solution, 1.8-2 parts of a 2-3% copper sulfate solution, and 120-130 parts of high-density polyethylene. According to the present invention, the two-dimensional plane structure of the graphene and the three-dimensional network structure of the nanometer silica are dispersed in the resin to form the stable heat conduction network so as to substantially improve the heat transfer and provide the good heat conduction and heat dissipating effect.
Description
technical field [0001] The invention relates to the technical field of heat dissipation coatings, in particular to a polyethylene heat dissipation coating and a preparation method thereof. Background technique [0002] With the rapid development of modern science and technology, the high frequency and high speed of electronic devices and the density and miniaturization of integrated circuits have greatly increased the total power density and calorific value of electronic devices per unit volume, thus making the cooling of electronic devices more difficult. increasingly prominent. However, the cooling capacity achieved by conventional cooling systems is greatly challenged, especially in the fields of energy, automobiles, air conditioning, agriculture, chemicals, heating, aerospace, microelectronics, information, etc. put forward higher requirements. The heat dissipation paint is a special paint that improves the heat dissipation efficiency of the surface of the object and r...
Claims
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Login to View More IPC IPC(8): C09D123/06C09D7/12C09D5/08
Inventor 朱兴堂朱亮亮陈军彦
Owner BENGBU TIMES ELECTRONICS