Preparation method of heat-conducting hot melt adhesive
A hot-melt adhesive and reaction technology, applied in the direction of heat exchange materials, chemical instruments and methods, adhesives, etc., can solve the problems of poor thermal conductivity of hot-melt adhesives, and ensure the uniformity and dispersion of acidification, good thermal conductivity and stability. The effect of reducing the temperature potential difference
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[0029] Example 1
[0030] A preparation method of thermally conductive hot melt adhesive, characterized in that: the preparation method comprises the following steps:
[0031] Step 1. Add ethylene-vinyl acetate copolymer and terpene resin to the ethanol aqueous solution, ultrasonically react for 10 minutes, and distill under reduced pressure until a viscous liquid is formed;
[0032] Step 2: Put the graphene into the hydrochloric acid solution, ultrasonically react for 1 hour, and microwave for 0.5 hour to obtain an acidified graphene solution;
[0033] Step 3, subject the acidified graphene liquid to a constant temperature evaporation reaction for 10 minutes, add thermal oil and dispersant after cooling, and stir evenly to obtain a thermally conductive mixed liquid;
[0034] Step 4. Add the initiator to the viscous liquid, stir evenly, and then slowly add the heat-conducting mixed liquid dropwise, while microwave reaction until the dropwise addition is complete, and let it stand for 1 ...
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[0045] Example 2
[0046] A preparation method of thermally conductive hot melt adhesive, characterized in that: the preparation method comprises the following steps:
[0047] Step 1. Add ethylene-vinyl acetate copolymer and terpene resin to the ethanol aqueous solution, ultrasonically react for 15 minutes, and distill under reduced pressure until a viscous liquid is formed;
[0048] Step 2: Put the graphene into a hydrochloric acid solution, ultrasonically react for 3 hours, and microwave for 1.5 hours to obtain an acidified graphene solution;
[0049] Step 3, subject the acidified graphene liquid to a constant temperature evaporation reaction for 20 minutes, add thermal oil and dispersant after cooling, and stir evenly to obtain a thermally conductive mixed liquid;
[0050] Step 4. Add the initiator to the viscous liquid, stir evenly, and then slowly add the heat-conducting mixed liquid dropwise, while microwave reaction until the dropwise addition is complete, and let it stand for 3 ...
Example Embodiment
[0061] Example 3
[0062] A preparation method of thermally conductive hot melt adhesive, characterized in that: the preparation method comprises the following steps:
[0063] Step 1. Add the ethylene-vinyl acetate copolymer and terpene resin to the ethanol aqueous solution, ultrasonically react for 13 minutes, and distill under reduced pressure until a viscous liquid is formed;
[0064] Step 2: Put the graphene into a hydrochloric acid solution, ultrasonically react for 2 hours, and microwave for 1 hour to obtain an acidified graphene solution;
[0065] Step 3, subject the acidified graphene liquid to a constant temperature evaporation reaction for 15 minutes, add thermal oil and dispersant after cooling, and stir evenly to obtain a thermally conductive mixed liquid;
[0066] Step 4. Add the initiator to the viscous liquid, stir evenly, then slowly add the heat-conducting mixed liquid dropwise, while microwave reaction until the dropwise addition is complete, and let it stand for 2 hou...
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