Hexahydroxy copolymer water-based pressure-sensitive adhesive without adhesive residue and preparation method of hexahydroxy copolymer water-based pressure-sensitive adhesive
A six-component copolymerization water-based, pressure-sensitive adhesive technology, applied in the field of pressure-sensitive adhesives, can solve problems such as foam control
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[0023] Example 1
[0024] 1) Dissolve 7g polyvinyl alcohol, 0.9g sodium dodecyl sulfonate, 1.8g alkylphenol polyoxyethylene ether in 140mL pure water, add sodium bicarbonate to adjust the PH value to 5-6, and then raise the temperature to 50℃ , Add 105g butyl acrylate, 11g isooctyl acrylate, 5g hydroxypropyl acrylate, 1.6g acrylic acid, 30.4g vinyl acetate, 3.6g N-methylol acrylamide and 0.44g n-dodecyl mercaptan, 60℃ React for 1 hour to obtain pre-emulsion;
[0025] 2) Dissolve 0.44g of ammonium persulfate in 3.6mL of pure water, take 25% pre-emulsion and mix 40% of ammonium persulfate solution, heat to 80℃, stir and reflux, when the liquid turns blue, start dripping the remaining pre-emulsion Emulsion, and add 20% ammonium persulfate solution every 1h, drip in 3h, and finally add the remaining ammonium persulfate solution, and keep refluxing at 90℃ for 1h;
[0026] 3) After cooling the above reaction solution to 40°C, add 4g DJJL-02 dropwise, mix well and then lower to room tempe...
Example Embodiment
[0027] Example 2
[0028] 1) Dissolve 7g polyvinyl alcohol, 0.9g sodium dodecyl sulfonate, 1.8g alkylphenol polyoxyethylene ether in 140mL pure water, add sodium bicarbonate to adjust the PH value to 5-6, and then raise the temperature to 50℃ , Add 105g butyl acrylate, 11g isooctyl acrylate, 5g hydroxypropyl acrylate, 1.6g acrylic acid, 30.4g vinyl acetate, 3.6g N-methylol acrylamide and 0.44g n-dodecyl mercaptan, 62℃ React for 1 hour to obtain pre-emulsion;
[0029] 2) Dissolve 0.44g ammonium persulfate in 3.6mL pure water, take 25% pre-emulsion and mix 40% of ammonium persulfate solution, heat up to 82℃, stir and reflux, when the liquid turns blue, start dripping the remaining pre-emulsion Emulsion, and add 20% ammonium persulfate solution every 1h, drip in 3h, and finally add the remaining ammonium persulfate solution, and keep refluxing at 90℃ for 1h;
[0030] 3) After cooling the above reaction solution to 40°C, add 4g DJJL-02 dropwise, mix well and then lower to room temperat...
Example Embodiment
[0031] Example 3
[0032] 1) Dissolve 7g polyvinyl alcohol, 0.9g sodium dodecyl sulfonate, 1.8g alkylphenol polyoxyethylene ether in 140mL pure water, add sodium bicarbonate to adjust the PH value to 5-6, and then raise the temperature to 50℃ , Add 105g butyl acrylate, 11g isooctyl acrylate, 5g hydroxypropyl acrylate, 1.6g acrylic acid, 30.4g vinyl acetate, 3.6g N-methylol acrylamide and 0.44g n-dodecyl mercaptan, 60℃ React for 1 hour to obtain pre-emulsion;
[0033] 2) Dissolve 0.44g of ammonium persulfate in 3.6mL of pure water, take 25% pre-emulsion and mix 40% of ammonium persulfate solution, heat to 80℃, stir and reflux, when the liquid turns blue, start dripping the remaining pre-emulsion Emulsion, and add 20% ammonium persulfate solution every 1h, and the dripping is completed within 3h, and finally add the remaining ammonium persulfate solution, and keep refluxing at 90℃ for 1.5h;
[0034] 3) After cooling the above reaction solution to 40°C, add 4g DJJL-02 dropwise, mix we...
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