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
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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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