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Heat-dissipation powder coating and preparation method thereof

A technology of powder coatings and heat-dissipating fillers, which is applied in the direction of powder coatings, anti-corrosion coatings, fire-resistant coatings, etc., can solve the problems of inability to solve the problem of filler accumulation, poor heat dissipation effect of a single heat-dissipating material, and no specific solution proposed, so as to promote Heat dissipation effect, promotion of directional arrangement, promotion of tidy effect

Active Publication Date: 2020-04-21
广东华江粉末科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another example is that the patent No. PCT / JP2011 / 0505 discloses a heat-dissipating coating composition, but the problem of filler accumulation cannot be solved overall, and the heat-dissipating effect of a single heat-dissipating material is poor
[0004] In summary, in the field of powder coating preparation, there are still many practical problems that need to be dealt with in its practical application, and no specific solutions have been proposed.

Method used

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  • Heat-dissipation powder coating and preparation method thereof
  • Heat-dissipation powder coating and preparation method thereof

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Embodiment 1

[0033] The invention provides a heat-dissipating powder coating and a preparation method thereof. The heat-dissipating powder coating comprises the following components in mass percentage: 59.3% of a saturated carboxyl-terminated polyester resin, 4.5% of a curing agent, 20.8% of a composite heat-dissipating filler, and 1% of an alignment agent , titanium dioxide 5%, leveling agent 0.5%, magnesium aluminum silicate 1%, brightener 0.5%, benzoin 0.2%, polytetrafluoroethylene 0.2%, antioxidant 0.1%, pigment 1.5%, aluminum pigment 5.4%; The composite heat-dissipating filler is prepared by successively ball milling, mixing and spheroidizing hexagonal boron nitride, aluminum hydroxide and aluminum oxide.

[0034] Wherein, in this embodiment, the saturated carboxyl-terminated polyester resin is a polyester resin with an acid value of 30-40 mgKOH / g, its addition amount is 59.3%, and the corresponding curing agent is TGIC, and the addition of the curing agent TGIC The amount is 4.5%; th...

Embodiment 2

[0044] The invention provides a heat-dissipating powder coating and a preparation method thereof. The heat-dissipating powder coating comprises the following components in mass percentage: 39.7% of saturated carboxyl-terminated polyester resin, 30% of curing agent, 13.2% of composite heat-dissipating filler, and 1% of orientation alignment agent , titanium dioxide 5%, leveling agent 1.0%, magnesium aluminum silicate 1%, brightener 0.3%, benzoin 0.5%, polytetrafluoroethylene 0.2%, antioxidant 0.3%, pigment 1.0%, aluminum pigment 6.8%; The composite heat-dissipating filler is prepared by successively ball milling, mixing and spheroidizing hexagonal boron nitride, aluminum hydroxide and aluminum oxide.

[0045] Wherein, in this embodiment, the saturated carboxyl-terminated polyester resin is a polyester resin with an acid value of 30-75 mgKOH / g, its addition amount is 39.7%, and the corresponding curing agent is an epoxy resin, and the epoxy resin The added amount is 30%; the lev...

Embodiment 3

[0055] The invention provides a heat-dissipating powder coating and a preparation method thereof. The heat-dissipating powder coating comprises the following components in mass percentage: 34.5% of a saturated carboxyl-terminated polyester resin, 18% of a curing agent, 15.5% of a composite heat-dissipating filler, and 2% of an alignment agent , titanium dioxide 5%, leveling agent 0.6%, magnesium aluminum silicate 1%, brightener 0.1%, benzoin 0.3%, polytetrafluoroethylene 0.4%, antioxidant 0.2%, pigment 1.0%, aluminum pigment 10.4%; The composite heat-dissipating filler is prepared by successively ball milling, mixing and spheroidizing hexagonal boron nitride, aluminum hydroxide and aluminum oxide.

[0056] Wherein, in this embodiment, the saturated carboxyl-terminated polyester resin is a polyester resin with an acid value of 30-75 mgKOH / g, its addition amount is 34.5%, and the corresponding curing agent is an epoxy resin, and the epoxy resin The added amount is 18%; the level...

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Abstract

The invention provides a heat-dissipation powder coating and a preparation method thereof. The powder coating comprises saturated carboxyl-terminated polyester resin, a curing agent, a composite heat-dissipation filling material, a directional arrangement agent, titanium dioxide, polytetrafluoroethylene, an aluminum pigment and the like, wherein the composite heat-dissipation filling material is prepared by sequentially carrying out ball milling, mixing and spheroidizing treatment on hexagonal boron nitride, aluminum hydroxide and aluminum oxide; the heat conductivity coefficient of the composite heat-dissipation filling material can be effectively increased; and the composite heat-dissipation filling material and the aluminum pigment are in synergistic interaction, so the powder coating has a remarkable heat dissipation effect. According to the invention, the directional arrangement agent with a hydroxyl content of 1%-2% is added, and has strong affinity with aluminum hydroxide, aluminum oxide, magnesium aluminum silicate and the aluminum pigment, effectively promotes the arrangement of the nodularized composite heat-dissipation filling material and the aluminum pigment to tend tobe tidy, and can effectively promote the establishment of good lap joint between the whole components in a formula; thus, the powder coating with excellent comprehensive properties on the whole is prepared.

Description

technical field [0001] The invention relates to the field of powder coating preparation, in particular to a heat-dissipating powder coating and a preparation method thereof. Background technique [0002] The radiator releases heat during operation. If the heat dissipation effect is poor, it will affect the use of electrical appliances. The coating of heat dissipation powder coating can improve the heat dissipation efficiency of the radiator surface and quickly reduce the temperature of electrical appliances. Thereby reducing the failure rate of the electric radiator and prolonging the service life of the radiator and the electric appliance. [0003] The powder coating is applied on the surface of the substrate, relying on strengthening the heat conduction and heat radiation capabilities of the surface of the object, improving the heat dissipation efficiency of the surface, and achieving the purpose of cooling and heat dissipation. For heat-dissipating powder coatings, it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/03C09D5/10C09D7/61
CPCC08K2003/0812C08K2201/003C09D5/033C09D5/103C09D5/18C09D167/00C08K13/04C08K7/24C08K3/08C08K3/34
Inventor 魏育福蔡劲树李啟聪莫剑辉
Owner 广东华江粉末科技有限公司
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