Preparation method of low-temperature curing water-based aminoacrylic acid resin
An amino acrylate, water-based technology, applied in the field of coatings, to achieve the effect of low curing temperature and enhanced scratch resistance
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Embodiment 1
[0036] During the above esterification reaction, the molar ratio of acrylic acid and melamine formaldehyde resin was 1:1, the esterification reaction temperature was 110° C., and the reaction time was 1 h.
[0037] During the polymerization process, the amount of the aminoacrylic ester macromer is 4 parts; the amount of the methyl methacrylate is 5 parts; the amount of the isooctyl methacrylate is 30 parts; the tertiary carbonic acid The vinyl ester consumption is 30 parts; the described butyl acrylate consumption is 2 parts; the described α-methacrylic acid consumption is 3 parts; the described sodium bicarbonate consumption is 0.5 parts; the described ammonium persulfate consumption is 0.5 part; The described tert-butyl hydroperoxide consumption is 0.1 part; The described sodium bisulfoxylate formaldehyde consumption is 0.1 part; The emulsifier in the described emulsion polymerization is SR-10, and the consumption is 3 parts; The amount of deionized water used in the emulsio...
Embodiment 2
[0041] During the above esterification reaction, the molar ratio of acrylic acid and melamine formaldehyde resin was 1.2:1, the esterification reaction temperature was 130° C., and the reaction time was 3 hours.
[0042]During the polymerization process, the amount of the aminoacrylic ester macromer is 8 parts; the amount of the methyl methacrylate is 13 parts; the amount of the isooctyl methacrylate is 50 parts; the tertiary carbonic acid The consumption of vinyl ester is 50 parts; The consumption of described butyl acrylate is 5 parts; The consumption of described α-methacrylic acid is 5 parts; The consumption of described sodium bicarbonate is 0.7 part; The consumption of described ammonium persulfate is 0.7 part; The described tert-butyl hydroperoxide consumption is 0.3 part; The described sodium bisulfoxylate formaldehyde consumption is 0.3 part; The emulsifier in the described emulsion polymerization is SR-10, and the consumption is 5 parts; The amount of deionized water...
Embodiment 3
[0046] During the above esterification reaction, the molar ratio of acrylic acid and melamine formaldehyde resin was 1.12:1, the esterification reaction temperature was 115°C, and the reaction time was 1.3h.
[0047] During the polymerization process, the amount of the aminoacrylic ester macromonomer is 5 parts; the amount of the methyl methacrylate is 6 parts; the amount of the isooctyl methacrylate is 32 parts; the tertiary carbonic acid The consumption of vinyl ester is 32 parts; The consumption of described butyl acrylate is 2.5 parts; The consumption of described α-methacrylic acid is 3.3 parts; The consumption of described sodium bicarbonate is 0.53 parts; The consumption of described ammonium persulfate is 0.53 part; The described tert-butyl hydroperoxide consumption is 0.12 part; The described sodium bisulfite formaldehyde consumption is 0.12 part; The emulsifier in the described emulsion polymerization is SR-10, and the consumption is 3.3 parts; The amount of deionize...
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