Low-temperature self-crosslinking polyacrylate pigment printing binding agent and preparation method thereof
A technology of polyacrylate and pigment printing, applied in the direction of ester copolymer adhesives, adhesive types, etc., can solve the problems of hand feeling, environmental protection, fastness and stability, etc., achieve bright color, low cost, The effect of the simplicity of the polymerization process
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[0027] Example 1
[0028] Mix 50.0 g of butyl acrylate, 25.0 g of isooctyl acrylate, 13.0 g of methyl methacrylate, 4.0 g of acrylonitrile, 2.0 g of methacrylic acid, 3.0 g of hydroxypropyl acrylate, 2.0 g of diacetone acrylamide, and emulsifier 1.7 g, 60g deionized water, stir evenly to make a pre-emulsion; dissolve 0.4g potassium persulfate in 8.0g deionized water to prepare an initiator solution; add 25.0g deionized water and 0.8 emulsifier to the polymerization reactor g and 0.3g of sodium bicarbonate, stir well; add 14g of the above-mentioned pre-emulsion and 2g of the above-mentioned initiator solution to the polymerization reactor, and heat to 78°C. After the blue light appears in the emulsion in the polymerization reactor, return to the polymerization reactor Add the remaining pre-emulsion and initiator solution 6g dropwise continuously, after 2h continuous dropwise addition, add the remaining initiator solution, raise the temperature to 85℃, keep it for 1h, then lower th...
Example Embodiment
[0031] Example 2
[0032] Mix 60.0 g of butyl acrylate, 16.0 g of isooctyl acrylate, 10.0 g of methyl methacrylate, 4.0 g of acrylonitrile, 2.0 g of methacrylic acid, 4.0 g of hydroxypropyl acrylate, 2.5 g of diacetone acrylamide, and 2.0 g of emulsifier. g, 60g deionized water, stir evenly to make a pre-emulsion; dissolve 0.35g potassium persulfate in 7.0g deionized water to prepare an initiator solution; in the polymerization reactor, add 25.0g deionized water and 1.0 emulsifier g and 0.2g of sodium bicarbonate, stir well; add 15g of the above pre-emulsion and 2.5g of the above initiator solution to the polymerization reactor, and heat to 80°C. After the blue light appears in the emulsion in the polymerization reactor, proceed to the polymerization reaction. Add 7g of the remaining pre-emulsion and initiator solution to the kettle continuously. After 3 hours of continuous dripping, add the remaining initiator solution, increase the temperature to 90°C, hold for 0.5h, and then ...
Example Embodiment
[0035] Example 3
[0036] Mix 68.0 g of butyl acrylate, 8.0 g of ethyl acrylate, 7.0 g of methyl methacrylate, 7.0 g of styrene, 2.5 g of methacrylic acid, 3.0 g of hydroxypropyl acrylate, 3.0 g of diacetone acrylamide, and 2.0 g of emulsifier. , 60g deionized water, uniformly stirred to make a pre-emulsion; dissolve 0.35g potassium persulfate in 7.0g deionized water to prepare an initiator solution; in the polymerization reactor, add 25.0g deionized water and 1.0g emulsifier And sodium bicarbonate 0.2g, stir evenly; add 16g of the above-mentioned pre-emulsion and 2.3g of the above-mentioned initiator solution to the polymerization reactor, and heat up to 82°C. After the blue light appears in the emulsion in the polymerization reactor, return to the polymerization reactor Add 8g of the remaining pre-emulsion and initiator solution dropwise continuously, after 2.5 hours of continuous dropwise addition, add the remaining initiator solution, raise the temperature to 88°C, keep it f...
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