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Heat-conducting insulating modified nano composite dedicated to LED lamp bases and preparation method thereof

A technology of nano-composite materials and LED lamp holders, applied in the direction of insulators, organic insulators, plastic/resin/wax insulators, etc., can solve the problems of large amount of thermal conductivity and insulation additives and high cost of raw materials, and achieve enhanced thermal conductivity and insulation. effect and rheological properties, effect of improving surface effects and rheological properties

Active Publication Date: 2016-10-26
ANHUI XINTAO OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main innovation of this invention lies in the compounding of thermally conductive fillers with different particle sizes, and the incompatibility between the diffusing agent and the resin collective, so that the diffusing agent is distributed on the surface of large-sized thermally conductive and insulating filler particles, while the long-diameter ratio is relatively small. Due to the good compatibility of the filler with the diffusing agent, the filler can be dispersed in the diffusion and fill the gaps between the fillers with a large aspect ratio. The thermal conductivity is also greatly improved; however, (1) the amount of polyamide resin and thermal insulation additives is too large, resulting in high raw material costs; (2) the dispersion of the resin matrix must be improved by using a diffusing agent, resulting in high raw material costs , after molding at the same time, it can also be seen from the examples that the performance of the obtained thermally conductive insulating material for LED lamp holders is average, and it still needs to be modified appropriately

Method used

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  • Heat-conducting insulating modified nano composite dedicated to LED lamp bases and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A heat-conducting and insulating modified nano-composite material specially used for LED lamp holders. The main raw materials in parts by weight include: 5 parts of modified nano-polyurethane resin, 5 parts of heat-conducting and insulating additives, 1 part of silane coupling agent, polysiloxane 1 part, 1 part of hindered amine light stabilizer; the modified nano-polyurethane resin, the nano-scale main raw materials in parts by weight include: 10 parts of polyurethane resin, 6 parts of silicon dioxide, 2 parts of stearic acid; The main raw materials of the heat-conducting and insulating auxiliary agent in parts by weight include: 25 parts of sodium carboxymethyl cellulose and 20 parts of aluminum oxide.

[0025] A method for preparing a heat-conducting and insulating modified nano-composite material specially used for LED lamp holders, the specific steps are:

[0026] (1) First, vacuum-dry the silica at 80°C for 24 hours, then disperse the vacuum-dried silica in steari...

Embodiment 2

[0030] A heat-conducting and insulating modified nano-composite material specially used for LED lamp holders. The main raw materials in parts by weight include: 10 parts of modified nano-polyurethane resin, 10 parts of heat-conducting and insulating additives, 2 parts of silane coupling agent, polysiloxane 2 parts, 2 parts of hindered amine light stabilizers; the modified nano-polyurethane resin, according to the nano-scale main raw materials in parts by weight, includes: 15 parts of polyurethane resin, 9 parts of silicon dioxide, 4 parts of stearic acid; The heat-conducting and insulating auxiliary agent includes main raw materials in parts by weight: 38 parts of sodium carboxymethyl cellulose and 25 parts of aluminum oxide.

[0031] A method for preparing a heat-conducting and insulating modified nano-composite material specially used for LED lamp holders, the specific steps are:

[0032] (1) First, vacuum-dry the silica at 80°C for 24 hours, then disperse the vacuum-dried s...

Embodiment 3

[0036]A heat-conducting and insulating modified nano-composite material specially used for LED lamp holders. The main raw materials in parts by weight include: 15 parts of modified nano-polyurethane resin, 15 parts of heat-conducting and insulating auxiliary agent, 3 parts of silane coupling agent, polysiloxane 3 parts, 3 parts of hindered amine light stabilizers; the modified nano-polyurethane resin, according to the nano-scale main raw materials in parts by weight, includes: 20 parts of polyurethane resin, 12 parts of silicon dioxide, 6 parts of stearic acid; The heat-conducting and insulating auxiliary agent includes main raw materials in parts by weight: 50 parts of sodium carboxymethyl cellulose and 30 parts of aluminum oxide.

[0037] A method for preparing a heat-conducting and insulating modified nano-composite material specially used for LED lamp holders, the specific steps are:

[0038] (1) First, vacuum-dry the silica at 80°C for 24 hours, then disperse the vacuum-d...

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Abstract

The invention discloses a heat-conducting insulating modified nano composite dedicated to LED lamp bases and a preparation method thereof. The heat-conducting insulating modified nano composite dedicated to LED lamp bases is made from the main materials according to parts by weight: 5-15 parts of modified nano polyurethane resin, 5-15 parts of a heat-conducting insulating aid, 1-3 parts of a silane coupling agent, 1-3 parts of polysiloxane and 1-3 parts of a hindered amine light stabilizer; the modified nano polyurethane resin is made from the nano main materials according to parts by weight: 10-20 parts of polyurethane resin, 6-12 parts of silicon dioxide and 2-6 parts of stearic acid; the heat-conducting insulating aid is made from the main materials according to parts by weight: 25-50 parts of sodium carboxymethyl cellulose and 20-30 parts of alumina. The heat-conducting insulating modified nano composite dedicated to LED lamp base according to the invention has excellent comprehensive performance and has the advantages such as good formability and processibility, high heat conductivity, high insulation and low cost.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a heat-conducting and insulating modified nano-composite material for LED lamp holders and a preparation method thereof. Background technique [0002] Thermally conductive insulating material is a commonly used functional material, usually in the form of ceramics, plastics, rubber, adhesives, coatings, etc. It is widely used in microelectronic packaging, motors, automobiles, special cables, and even high-end aerospace and military fields. The field of science and technology has a good application prospect. With the continuous development of electronic products and LEDs in the direction of high power, more and more heating problems will appear, which will reduce the efficacy of products and shorten their lifespan. Therefore, it is urgent to develop a new type of high thermal conductivity insulating material to solve the problem of structural heat dissipation, which is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L1/28C08L83/04C08K13/06C08K9/04C08K3/36C08K5/09C08K3/22H01B3/30
CPCC08K2201/003C08K2201/011C08L1/286C08L75/04C08L2205/03H01B3/302C08L83/04C08K13/06C08K9/04C08K3/36C08K5/09C08K2003/2227
Inventor 翁志远孔敏程颖翁志刚方杰张磊
Owner ANHUI XINTAO OPTOELECTRONICS TECH CO LTD