Aqueous self-emulsifying epoxy resin emulsion and preparation thereof
A technology of epoxy resin emulsion and epoxy resin, which is applied in the chemical industry, can solve problems such as difficult control, coarse particles, and complicated preparation process, and achieve the effects of energy saving, good performance, and simple process
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Embodiment 1
[0027] Add 100g of E-51, 7.4g of polyethylene glycol 2000 (PEG-2000, molecular weight 2000), 0.4g of triphenylphosphine catalyst and 10g of n-butanol into the reaction flask, heat to 130°C, react for 2 hours, start Cool down, and when the temperature drops to 100°C, slowly add 252g of deionized water under high-speed stirring. After the water is completely added, stir for another 0.5 hour and filter to obtain a water-based self-emulsifying epoxy resin emulsion.
Embodiment 2
[0029] Add 100g E-44, 10g PEG-4000 (molecular weight 4000), 10g Bis-A, 0.6g triphenylphosphine catalyst and 10g methyl ethyl ketone into the reaction flask together, heat to 100°C, after 5 hours of reaction, start to cool down, the temperature drops When the temperature reaches 60° C., slowly add 150 g of deionized water under high-speed stirring. After the water is completely added, stir for 1 hour and filter to obtain a water-based self-emulsifying epoxy resin emulsion.
Embodiment 3
[0031] Add 100g E-44, 40g PEG-2000, 5g glycerin, 0.6g triphenylphosphine catalyst and 5g methyl ethyl ketone into the reaction flask together, heat to 120°C, after 4 hours of reaction, start to cool down, when the temperature drops to 80°C, Under high-speed stirring, slowly add 50 g of deionized water, after the water is completely added, stir for another 2 hours, and filter to obtain a water-based self-emulsifying epoxy resin emulsion.
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