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Composite material used for shell of automotive relay and preparation method thereof

A technology for automotive relays and composite materials, which is applied in the field of composite materials for automotive relay shells and its preparation, can solve problems such as poor insulation, poor corrosion resistance, and low impact strength, and achieve good insulation stability, strong protection, and improved overall performance Effect

Inactive Publication Date: 2017-04-19
宁波永的电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as electromagnets, contactor coils, transformers, dry-type transformers and other high-voltage and low-voltage electrical appliances, the manufacture of integrally sealed insulating packages has developed rapidly in the electrical industry. However, epoxy materials traditionally used for electrical insulation, Poor corrosion resistance and low impact strength, so in order to continuously improve the protection of electronic appliances, it is necessary to study higher performance epoxy materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A composite material used for automotive relay casings, which is composed of the following raw materials in parts by weight:

[0020] Epoxy resin E40 100, polytetrahydrofuran ether glycol 2, calcium powder 10, ethoxylated alkylphenol ammonium sulfate 0.7, hexamethylcyclotrisiloxane 0.1, maleic anhydride 6, dicumyl peroxide 0.1 , 3-(trifluoromethyl)benzophenone 17, hydroquinone 2, 2-mercaptobenzimidazole 0.1, nano silicon dioxide 1, sodium tripolyphosphate 1, aluminum dihydrogen phosphate 1, magnesium oxide 0.02, zinc stearate 1, isophthalic polyester 0.5, erucamide 0.1.

Embodiment 2

[0022] A composite material used for automotive relay casings, which is composed of the following raw materials in parts by weight:

[0023] Epoxy resin E40 113, polytetrahydrofuran ether glycol 2.5, calcium powder 11, ethoxylated alkylphenol ammonium sulfate 0.8, hexamethylcyclotrisiloxane 0.15, maleic anhydride 7, dicumyl peroxide 0.3 , 3-(trifluoromethyl)benzophenone 18, hydroquinone 2.5, 2-mercaptobenzimidazole 0.2, nano silicon dioxide 1.3, sodium tripolyphosphate 1.5, aluminum dihydrogen phosphate 1.2, magnesium oxide 0.07, zinc stearate 1.7, isophthalic polyester 0.6, erucamide 0.2.

Embodiment 3

[0025] A composite material used for automotive relay casings, which is composed of the following raw materials in parts by weight:

[0026] Epoxy resin E40 130, polytetrahydrofuran ether glycol 3, calcium powder 12, ethoxylated alkylphenol ammonium sulfate 1, hexamethylcyclotrisiloxane 0.2, maleic anhydride 9, dicumyl peroxide 0.5 , 3-(trifluoromethyl)benzophenone 20, hydroquinone 3, 2-mercaptobenzimidazole 0.4, nano silicon dioxide 1.5, sodium tripolyphosphate 2, aluminum dihydrogen phosphate 1.3, magnesium oxide 0.1, zinc stearate 2, isophthalic polyester 0.7, erucamide 0.3.

[0027] A preparation method for a composite material for an automotive relay housing, comprising the following steps:

[0028] (1) Calcinate the above calcium powder at 700°C for 1 hour, cool, grind into fine powder, mix with the above sodium tripolyphosphate, keep stirring at 110°C for 25 minutes, cool, mix with the above aluminum dihydrogen phosphate, add Add to deionized water 43 times the weight...

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Abstract

The invention discloses a composite material used for a shell of an automotive relay. The composite material is composed of, by weight, 100-130 parts of epoxy resin E40, 2-3 parts of polytetrahydrofuran ether glycol, 10-12 parts of calcium powder, 0.7-1 part of ethoxylated alkylphenol ammonia sulfate, 0.1-0.2 parts of hexamethyl cyclotrisiloxane, 6-9 parts of maleic anhydride, 0.1-0.5 parts of dicumyl peroxide, 17-20 parts of 3-(trifluoromethyl)diphenylketone, 2-3 parts of hydroquinone, 0.1-0.4 parts of 2-thiolbenzimidazole, 1-1.5 parts of nano silicon dioxide, 1-2 parts of sodium tripolyphosphate, 1-1.3 parts of aluminum dihydrogen phosphate, 0.02-0.1 parts of magnesium oxide, 1-2 parts of zinc stearate, 0.5-0.7 parts of meso-benzene polyester, and 0.1-0.3 parts of erucyl amide. The resin material has good toughness and anti-impact property, is high in surface strength, is waterproofing and is good in anti-corrosion performance, has strong protective performance on a relay and is stable in insulation stability. Through anhydride grafting reaction, dispersibility of the fillers in the resin is effectively improved, thereby improving comprehensive performances of the finish product material.

Description

technical field [0001] The invention relates to the technical field of resin materials, in particular to a composite material used for automobile relay casings and a preparation method thereof. Background technique [0002] After curing, the thermosetting resin forms a network structure due to intermolecular crosslinking, so it has high rigidity, high hardness, high temperature resistance, non-flammability, and good dimensional stability of the product, but it is brittle. Therefore, before molding most thermosetting resins into products, various reinforcing materials, such as wood powder, mineral powder, fibers or textiles, are added to strengthen them to make reinforced plastics. In the thermosetting resin, adding reinforcing materials and other additives, such as curing agent, colorant, lubricant, etc., can be made into thermosetting plastics, some are powdery, granular, and some are made into lumps and flakes, collectively referred to as molding compounds. . Commonly us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L71/02C08K13/06C08K9/04C08K9/06C08K3/26C08K3/32C08K5/20C08K3/36
CPCC08L63/00C08K2201/011C08L2203/20C08L2205/035C08L71/02C08K13/06C08K9/04C08K9/06C08K2003/265C08K2003/324C08K5/20C08K3/36
Inventor 舒小强
Owner 宁波永的电子科技有限公司
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