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Strong-viscosity weather-proof high-stability environment-friendly resistance paste and preparation method thereof

A resistance paste, sticky and weather-resistant technology, which is applied in the field of resistance materials, can solve the problems of high temperature, high power, and small volume of heating devices, and achieve the effects of stable conductivity, improved conductive network, and large specific surface area

Inactive Publication Date: 2018-07-24
HEFEI DONGHENGRUI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At the same time, as the market requirements are getting higher and higher, the heating elements of electronic components are required to be small in size and high in power. To make greater power on the substrate with the same area, it is often necessary to increase the size of the paste pattern, which will inevitably cause The temperature height of the heating device itself, how to improve the thermal conductivity and heat resistance of the material is also the key direction of research

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A strong, weather-resistant, high-stable, environmentally-friendly resistance slurry of this embodiment includes the following raw materials in parts by weight:

[0041] 16 parts of compound resin, 3 parts of graphene, 7 parts of metal powder, 1 part of conductive auxiliary additive, 5 parts of glass-ceramic powder, 0.5 part of antioxidant, 10 parts of filled polymer, 3 parts of coupling agent, 1 part of auxiliary agent 1 part, 1 part of white carbon black, 1 part of high temperature resistant binder.

[0042] The composite resin in this example is a mixture of silicone resin, acrylic resin, and epoxy resin E-44 in a weight ratio of 3:1:2.

[0043] The metal powder in this embodiment is a mixture of nickel powder, gold powder, copper powder, and silver powder in a weight ratio of 3:1:4:7, which is described as metal powder

[0044]The conductive auxiliary additive in this embodiment includes the following raw materials in parts by weight: 1 part of rare earth oxide, 1 ...

Embodiment 2

[0055] A strong, weather-resistant, high-stable, environmentally-friendly resistance slurry of this embodiment includes the following raw materials in parts by weight:

[0056] 20 parts of compound resin, 5 parts of graphene, 9 parts of metal powder, 3 parts of conductive auxiliary additive, 7 parts of glass-ceramic powder, 1.5 parts of antioxidant, 16 parts of filled polymer, 7 parts of coupling agent, 3 parts of auxiliary agent 2 parts, white carbon black 2 parts, high temperature resistant binder 3 parts.

[0057] The composite resin in this example is a mixture of silicone resin, acrylic resin, and epoxy resin E-44 in a weight ratio of 3:1:2.

[0058] The metal powder in this embodiment is a mixture of nickel powder, gold powder, copper powder, and silver powder in a weight ratio of 3:1:4:7, which is described as metal powder

[0059] The conductive auxiliary additives in this embodiment include the following raw materials in parts by weight: 3 parts of rare earth oxide, ...

Embodiment 3

[0070] A strong, weather-resistant, high-stable, environmentally-friendly resistance slurry of this embodiment includes the following raw materials in parts by weight:

[0071] 18 parts of compound resin, 4 parts of graphene, 8 parts of metal powder, 2 parts of conductive auxiliary additive, 6 parts of glass-ceramic powder, 1 part of antioxidant, 13 parts of filled polymer, 5 parts of coupling agent, 2 parts of auxiliary agent 1.5 parts of white carbon black, 2 parts of high temperature resistant binder.

[0072] The composite resin in this example is a mixture of silicone resin, acrylic resin, and epoxy resin E-44 in a weight ratio of 3:1:2.

[0073] The metal powder in this embodiment is a mixture of nickel powder, gold powder, copper powder, and silver powder in a weight ratio of 3:1:4:7, which is described as metal powder

[0074] The conductive auxiliary additive in this embodiment includes the following raw materials in parts by weight: 2 parts of rare earth oxide, 2 pa...

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PUM

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Abstract

The invention discloses strong-viscosity weather-proof high-stability environment-friendly resistance paste and a preparation method thereof. The resistance paste is prepared from the following raw materials in parts by weight: 16 to 20 parts of compound resin, 3 to 5 parts of graphene, 7 to 9 parts of metal powder, 1 to 3 parts of conductive auxiliary additive, 5 to 7 parts of microcrystalline glass powder, 0.5 to 1.5 parts of antioxidant, 10 to 16 parts of filling polymer, 3 to 7 parts of coupling agent, 1 to 3 parts of aid, 1 to 2 parts of white carbon black and 1 to 3 parts of high temperature resistance adhesive. The resistance paste disclosed by the invention has higher adhesion strength with a base body, is not prone to falling off, further had the advantages of good curing flatness, excellent voltage resistance and current resistance, heat resistance, ageing resistance, no heavy metal of lead, cadmium, chromium, mercury and the like and can meet an environment-friendly requirement; in addition, the preparation method disclosed by the invention has the advantages of low cost, concise technology, higher practical value and good application prospect.

Description

technical field [0001] The invention relates to the technical field of resistance materials, in particular to a strong adhesion, weather resistance, high stability and environmental protection resistance slurry and a preparation method thereof. Background technique [0002] With the increase of market inspection time, the disadvantages of resistance wire heaters such as large volume, short life, and low efficiency of electric heat utilization gradually appear. Many new-generation products are gradually eliminating resistance wire heating methods and replacing them with thick-film circuit heating elements. [0003] Thick-film circuit heating elements have long been used only for high-end electronic equipment heating elements, such as small heating sheets or heating strips, due to high production costs and complicated manufacturing processes, and are rarely used in daily high-power household appliances. product. With the development of technology and the improvement of people...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L33/04C08L63/00C08L77/00C08K13/04C08K3/04C08K7/24C08K3/22C08K7/14C08K3/08C08K3/36H05B3/12
CPCC08K2003/0806C08K2003/0831C08K2003/085C08K2003/0862C08K2003/221C08K2003/2241C08K2003/2296C08K2201/001C08K2201/011C08L83/04C08L2201/08C08L2205/035H05B3/12C08L33/04C08L63/00C08L77/00C08K13/04C08K3/04C08K7/24C08K3/22C08K7/14C08K3/08C08K3/36Y02B30/00
Inventor 齐慧
Owner HEFEI DONGHENGRUI ELECTRONICS TECH CO LTD