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Heat-conductive foam cotton with heat conductivity

A heat conduction and performance technology, applied in the field of heat conduction foam, can solve the problems of uneven internal cells, difficult control, high production cost, etc., and achieve the effect of excellent tensile performance, high thermal conductivity and low cost

Inactive Publication Date: 2019-04-12
蚌埠心里程电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although several foam materials with heat conduction effect have appeared at present, their internal cells are uneven, the foaming rate is low, and the thermal conductivity is low, which has the disadvantages of difficult control, high production cost, and difficult molding.

Method used

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  • Heat-conductive foam cotton with heat conductivity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A thermally conductive foam with thermal conductivity, the components by weight are as follows: 30 parts of polyurethane, 20 parts of polyethylene, 4 parts of dispersant, 2 parts of flame retardant, 1 part of anti-aging agent, 15 parts of modified carbon fiber, hair 2 parts of foaming agent, 3 parts of plasticizer, 5 parts of curing agent, and 1 part of surfactant.

[0022] Preferably, wherein, the dispersant is one or both of fatty acids, aliphatic amides, and esters, and the flame retardant is aluminum-magnesium-based flame retardants, nitrogen-based flame retardants, organosilicon flame retardants, One or both of the combustion agents, the anti-aging agent is 2-mercaptobenzimidazole or 2,2,4-trimethyl-1,2-dihydroquinoline polymer, and the foaming agent is One or both of n-butane, n-pentane, and n-hexane, the plasticizer is citric acid esters or epoxy soybean oil, the curing agent is formic acid or acetic acid, and the surfactant is ten Sodium Dialkylbenzene Sulfonat...

Embodiment 2

[0034] A thermally conductive foam with thermal conductivity, the components by weight are as follows: 40 parts of polyurethane, 25 parts of polyethylene, 5 parts of dispersant, 2.5 parts of flame retardant, 2 parts of anti-aging agent, 17 parts of modified carbon fiber, hair 3 parts of foaming agent, 4 parts of plasticizer, 6 parts of curing agent, and 1.5 parts of surfactant.

[0035] Preferably, wherein, the dispersant is one or both of fatty acids, aliphatic amides, and esters, and the flame retardant is aluminum-magnesium-based flame retardants, nitrogen-based flame retardants, organosilicon flame retardants, One or both of the combustion agents, the anti-aging agent is 2-mercaptobenzimidazole or 2,2,4-trimethyl-1,2-dihydroquinoline polymer, and the foaming agent is One or both of n-butane, n-pentane, and n-hexane, the plasticizer is citric acid esters or epoxy soybean oil, the curing agent is formic acid or acetic acid, and the surfactant is ten Sodium Dialkylbenzene Su...

Embodiment 3

[0047] A thermally conductive foam with thermal conductivity, the components by weight are as follows: 50 parts of polyurethane, 30 parts of polyethylene, 6 parts of dispersant, 3 parts of flame retardant, 3 parts of antiaging agent, 20 parts of modified carbon fiber, hair 4 parts of foaming agent, 5 parts of plasticizer, 7 parts of curing agent, 2 parts of surfactant.

[0048] Preferably, wherein, the dispersant is one or both of fatty acids, aliphatic amides, and esters, and the flame retardant is aluminum-magnesium-based flame retardants, nitrogen-based flame retardants, organosilicon flame retardants, One or both of the combustion agents, the anti-aging agent is 2-mercaptobenzimidazole or 2,2,4-trimethyl-1,2-dihydroquinoline polymer, and the foaming agent is One or both of n-butane, n-pentane, and n-hexane, the plasticizer is citric acid esters or epoxy soybean oil, the curing agent is formic acid or acetic acid, and the surfactant is ten Sodium Dialkylbenzene Sulfonate o...

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Abstract

The invention discloses heat-conductive foam cotton with heat conductivity. The heat-conductive foam cotton is prepared from the following raw materials through mixing, vibration, foaming and drying by weight: 30 to 50 parts of polyurethane, 20 to 30 parts of polyethylene, 4 to 6 parts of a dispersant, 2 to 3 parts of a flame retardant, 1 to 3 parts of an anti-aging agent, 15 to 20 parts of modified carbon fiber, 2 to 4 parts of a foaming agent, 3 to 5 parts of a plasticizer, 5 to 7 parts of a curing agent and 1 to 2 parts of a surfactant. The heat-conductive foam cotton prepared by using thepreparation method provided by the invention has excellent tensile strength, heat resistance, flame retardancy and structural stability under the synergistic action of all components; the interior ofthe foam cotton has high foaming rate and high heat conductivity coefficient; meanwhile, the heat-conductive foam cotton provided by the invention has low cost, easy production and extensive application prospects.

Description

technical field [0001] The invention belongs to the technical field of heat-conducting foam, in particular to a heat-conducting foam with heat conduction performance. Background technique [0002] Heat conduction is the heat transfer phenomenon when there is no macroscopic motion in the medium. It can occur in solids, liquids and gases, but strictly speaking, it is pure heat conduction only in solids, and even if the fluid is in a static state, there will be Heat convection and heat conduction occur simultaneously in a fluid due to natural convection due to density differences caused by temperature gradients. In the field of electronics industry, heat conduction has always been an important process in the electronics industry, and the operating temperature of components is often an important basis for reliability. In particular, the assembly of microelectronics is becoming more and more intensive, and its working environment is rapidly changing to high temperature. It has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L23/06C08K9/04C08K7/06C08K5/11C08K13/06C08J9/14C09K5/14
CPCC08J9/141C08J2203/14C08J2375/04C08J2423/06C08K5/11C08K7/06C08K9/04C08K13/06C09K5/14
Inventor 李伟华彭国委彭国远
Owner 蚌埠心里程电子科技有限公司