High-performance epoxy resin composition for sheet molding compound (SMC)
A technology of epoxy resin and composition, applied in application, household appliances, flat products, etc., can solve the problems of high viscosity of epoxy resin, long curing time, inability to chemically thicken, etc., and achieve effective viscosity, excellent mechanical strength, The effect of shortening the curing time
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[0021] Example 1
[0022] 81.0g bisphenol A glycidyl ether epoxy resin E-51 (purchased from Wuxi Resin Factory of Bluestar New Chemical Materials Co., Ltd., with an epoxy value of 0.48-0.54), and 9.0g glycidylamine epoxy resin JEh-012 (purchased from Changshu Jiafa Chemical Co., Ltd., epoxy value 0.80-0.85) was mixed, and then added 18.0g dicyandiamide and 18.0g 4,4'-diaminodiphenyl sulfone (DDS) mixture , Then add 2.0g zinc stearate and 45.0g calcium carbonate in sequence, stir well, then add 18.0g toluene diisocyanate and 9.0g polyethylene glycol, continue to stir evenly to obtain the epoxy matrix resin, namely ESMC resin paste. The prepared ESMC resin paste is impregnated with 15-45mm random chopped glass fibers on the impregnating machine, and rolled by a sheet machine using an easily peelable polyethylene film as the diaphragm, and stored at 50°C for 3-4 days (thickening ) The ESMC sheet molding material is obtained. Differential scanning calorimetry (DSC method) thermal ...
Example Embodiment
[0023] Example 2
[0024] 72.0g bisphenol A glycidyl ether epoxy resin E-51 (purchased from Wuxi Resin Factory of Bluestar New Chemical Materials Co., Ltd., with an epoxy value of 0.48-0.54), 18.0g glycidylamine epoxy resin JEh-012 (purchased from Changshu Jiafa Chemical Co., Ltd., epoxy value 0.80-0.85) was mixed, and then added 18.0g dicyandiamide and 18.0g 4,4'-diaminodiphenyl sulfone (DDS) mixture , Then add 2.0g zinc stearate and 45.0g calcium carbonate in sequence, stir well, then add 18.0g toluene diisocyanate and 9.0g polyethylene glycol, continue to stir evenly to obtain the epoxy matrix resin, namely ESMC resin paste. The prepared ESMC resin paste is impregnated with 15-45mm random chopped glass fibers on the impregnating machine, and rolled by a sheet machine using an easily peelable polyethylene film as the diaphragm, and stored at 50°C for 3-4 days (thickening ) The ESMC sheet molding material is obtained. Differential scanning calorimetry (DSC method) thermal ana...
Example Embodiment
[0025] Example 3
[0026] 63.0g bisphenol A glycidyl ether epoxy resin E-51 (purchased from Wuxi Resin Factory of Bluestar New Chemical Materials Co., Ltd., with an epoxy value of 0.48-0.54), 27.0g glycidylamine epoxy resin JEh-012 (purchased from Changshu Jiafa Chemical Co., Ltd., epoxy value 0.80-0.85) was mixed, and then added 18.0g dicyandiamide and 18.0g 4,4'-diaminodiphenyl sulfone (DDS) mixture , Then add 2.0g zinc stearate and 45.0g calcium carbonate in sequence, stir well, then add 18.0g toluene diisocyanate and 9.0g polyethylene glycol, continue to stir evenly to obtain the epoxy matrix resin, namely ESMC resin paste. The prepared ESMC resin paste is impregnated with 15-45mm random chopped glass fibers on the impregnating machine, and rolled by a sheet machine using an easily peelable polyethylene film as the diaphragm, and stored at 50°C for 3-4 days (thickening ) The ESMC sheet molding material is obtained. Differential scanning calorimetry (DSC method) thermal ana...
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