KR910012059A - Thermosetting Epoxy Resin Compositions for High Voltage Electrical Components - Google Patents

Abstract

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Description

Thermosetting Epoxy Resin Compositions for High Voltage Electrical Components

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Claims (9)

(e) aluminum hydroxide, (f) in a mixture of (a) a bisphenol A epoxy resin, (b) a bicomponent pre-reactant of dibromo glycidyl ether and (c) a polybutadiene, and (d) an epoxy-based reactive diluent A thermosetting epoxy resin composition for two-component high voltage electrical parts, comprising: (h) a curing accelerator and (i) an acid anhydride-based curing agent in a subject blended with a composite filler of crystalline silica and (g) antimony oxide. 2. The thermosetting epoxy for two-component high voltage electrical component according to claim 1, wherein the bisphenol A epoxy resin has an epoxy equivalent in the range of 180 to 210, and its blending amount is 20 to 30% by weight of the main component. Resin composition. The dibromo glycidyl ether according to claim 1, wherein the dibromo glycidyl ether is represented by the formula (I) or (II), having an epoxy equivalent in the range of 300 to 400, Br content in the range of 35 to 55%, and (c) polybutadiene Is a structural formula (III), the molecular weight is in the range of 1600 to 4,000, the compounding quantity of the two-component pre-reactant of (b) and (c) is 7 to 10% by weight of the main component for two-component high-voltage electrical parts Thermosetting epoxy resin composition. Dibromo phenylglycidyl ether, wherein R ₁ = -H, -CH ₃ , Can be.) Polybutadiene (Where n = 0-1, m-7, z = 0-10, x, y = 0-5, R ₂ = -COOH, -OH, -NCO, -NH ₂ or -SH, R ₃ = May be -COOH or -CH = CH _2. ) The method according to claim 1 or 3, wherein (b) dibromo glycidyl ether is 50 to 85% by weight of the bicomponent prereactant, and (c) polybutadiene is 15 to 50 of the bicomponent preliminary reactant. A thermosetting epoxy resin composition for two-component high voltage electrical parts, characterized in that it comprises by weight percent. The two-component high voltage according to claim 1, wherein the (d) epoch-reactive diluent has one or more epoxy functional groups and an epoxy equivalent in the range of 100 to 300, with a compounding amount of 1 to 5% by weight of the main component. Thermosetting epoxy resin composition for electrical parts. The composite filler of (e) aluminum hydroxide, (f) crystalline silica, and (g) antimony oxide, respectively, wherein the average particle size is in the range of 0.5-20 µm. ~ 50% by weight, crystalline silica is 10-40% by weight of the main component, antimony oxide is composed of 3 to 5% by weight of the main component, two-component high voltage The thermosetting epoxy resin composition for two-component high voltage electric parts according to claim 1 or 6, wherein the blending ratio of the composite filler of (e) (f) (g) is 40 to 70% by weight of the main component. 2. The two-component high voltage according to claim 1, wherein the curing accelerator (h) is a tertiary amine compound, an imidazole compound, or a BF ₃ -complex salt compound, and the compounding amount is 0.1 to 0.5% by weight of the main component. Thermosetting epoxy resin composition for electrical parts. The method of claim 1, wherein (i) the curing agent is an acid anhydride-based liquid methyltetrahydro phthalic anhydride (MTHPA), methylhexahydro phthalic anhydride (MHHPA) or methyl high film anhydride (MHAC) ), And its blending amount is 25 to 35% by weight of the main component of the thermosetting resin composition for two-component high-voltage electric parts. ※ Note: The disclosure is based on the initial application.