Cationic environment-friendly white latex and preparation method thereof
A cationic, cationic emulsifier technology, applied in the direction of adhesive types, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problems of cumbersome process, high cost, poor stability, etc. To achieve the effect of simple preparation method, good permeability and adhesion, and broad application prospects
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Embodiment 1
[0053] A preparation method of cationic environment-friendly white latex, comprising the following steps:
[0054] a. Dissolve 4kg of cationic modified polyvinyl alcohol in 40kg of water, and heat up to 88°C;
[0055] b. Cool down the mixed solution obtained in step a to 60° C., then add 0.3 kg of azobisisobutylamidine hydrochloride and 0.5 kg of cetyltrimethylammonium bromide;
[0056] c. Mix 5kg dimethylaminoethyl methacrylate and 40kg vinyl acetate, add the mixture dropwise to the solution in step a, and react at 80°C for 4h.
[0057] The preparation method of the cation-modified polyvinyl alcohol is as follows: adding polyvinyl alcohol into water, stirring at 90°C until the polyvinyl alcohol is completely dissolved; cooling the completely dissolved polyvinyl alcohol to 65°C, adding 3-chloro -2-hydroxypropyltrimethylammonium chloride solution (mass fraction 65%), wherein the molar mass ratio of polyvinyl alcohol to 3-chloro-2-hydroxypropyltrimethylammonium chloride is 1:0....
Embodiment 2
[0059] A preparation method of cationic environment-friendly white latex, comprising the following steps:
[0060] a. Dissolve 6kg of cationic modified polyvinyl alcohol in 60kg of water and heat up to 92°C;
[0061] b. Cool the mixed solution obtained in step a to 70°C, then add 0.1kg of azobisisopropylimidazolinium salt and 3kg of 1-(2-(trimethylamino)ethyl)-4-(3-dodecyl Alkyl decaoxiranyl) butadienoate;
[0062] c. Mix 2kg of diethylaminoethyl methacrylate and 45kg of vinyl acetate, add the mixture dropwise to the solution in step a, and react at 75°C for 5h.
[0063] The preparation method of the cation-modified polyvinyl alcohol is as follows: adding polyvinyl alcohol into water, stirring at 100°C until the polyvinyl alcohol is completely dissolved; cooling the completely dissolved polyvinyl alcohol to 75°C, adding 3-chloro -2-hydroxypropyltrimethylammonium chloride solution (mass fraction 65%), wherein the molar mass ratio of polyvinyl alcohol to 3-chloro-2-hydroxyprop...
Embodiment 3
[0065] A preparation method of cationic environment-friendly white latex, comprising the following steps:
[0066] a. Dissolve 7kg of cationic modified polyvinyl alcohol in 48kg of water and heat up to 86°C;
[0067] b. Cool down the mixed solution obtained in step a to 62° C., then add 0.25 kg of azobisisobutylamidine hydrochloride and 1 kg of dioctadecylamine polyoxyethylene ether diquaternary ammonium salt;
[0068] c. Mix 3kg of dimethylaminoethyl methacrylate and 42kg of vinyl acetate, add the mixture dropwise to the solution in step a, and react at 76°C for 4.8h.
[0069] The preparation method of the cation-modified polyvinyl alcohol is as follows: adding polyvinyl alcohol to water, stirring at 92°C until the polyvinyl alcohol is completely dissolved; cooling the completely dissolved polyvinyl alcohol to 68°C, adding 3-chloro -2-hydroxypropyltrimethylammonium chloride solution (mass fraction 65%), wherein the molar mass ratio of polyvinyl alcohol to 3-chloro-2-hydroxyp...
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