Cation guar gum with transparent gum liquid and preparation method thereof
A technology of cationic guar gum and guar gum, which is applied in the field of cationic guar gum and its preparation, can solve the problems of slow dissolution rate, difficult control of viscosity and high cost, and achieve high transparency, suitable viscosity and stable glue solution Effect
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Embodiment 1
[0019] Put 30 grams of solid NaOH into the mixed solution of 230 grams of ethanol and 60 grams of water (dispersion medium, the weight fraction of water is 20.7%), stir and dissolve to obtain high-concentration lye, pour it into a three-necked bottle, add 100 grams of Guar collagen powder was stirred evenly at room temperature, and alkalized for 1.5 hours to obtain a dispersion. Warming up to 60°C, 160 grams of 3-chloro-2-hydroxypropyltrimethylammonium chloride etherification agent solution (mass percentage concentration 69%, containing 3-chloro-2-hydroxypropyl trimethylammonium chloride) was added dropwise to the dispersion. Methyl ammonium chloride 110.4 grams), after constant temperature reaction 2.5 hours, cooling, obtains reaction solution. The pH value of the reaction solution is adjusted to 7 with hydrochloric acid with a mass percent concentration of 30 wt%, and the transparent cationic guar gum of this glue solution is obtained after washing, filtering and drying. Th...
Embodiment 2
[0021] Put 32 grams of solid KOH alkali into the mixed solution of 200 grams of isopropanol and 52 grams of water (dispersion medium, the weight fraction of water is 20.6%), stir and dissolve to obtain a high-concentration lye, pour it into a three-necked bottle, add 100 grams of guar collagen powder were stirred evenly at room temperature and alkalized for 2 hours to obtain a dispersion. Warming up to 50°C, 180 grams of 3-chloro-2-hydroxypropyltrimethylammonium chloride etherification agent solution (mass percentage concentration 69%, containing 3-chloro-2-hydroxypropyl trimethylammonium chloride) was added dropwise to the dispersion. Methyl ammonium chloride 124.2), after constant temperature reaction for 3.5 hours, the temperature was lowered to obtain a reaction solution. The pH value of the reaction solution was adjusted to 7 with 30 wt% hydrochloric acid, and the cationic guar gum with transparent glue was obtained after washing, filtering and drying. The output of cati...
Embodiment 3
[0023] Put 26 grams of solid NaOH alkali into the mixed solution of 200 grams of isopropanol and 52 grams of water (dispersion medium, the weight fraction of water is 20.6%), stir and dissolve to obtain high-concentration lye, pour it into a three-necked bottle, add 100 grams of guar collagen powder were stirred evenly at room temperature and alkalized for 2 hours to obtain a dispersion. Warming up to 50°C, 160 grams of 3-chloro-2-hydroxypropyltrimethylammonium chloride etherification agent solution (mass percentage concentration 69%, containing 3-chloro-2-hydroxypropyl trimethylammonium chloride) was added dropwise to the dispersion. Methyl ammonium chloride 110.4 grams), after constant temperature reaction 4.5 hours, cooling, obtains reaction solution. The pH value of the reaction solution was adjusted to 7 with 30 wt% hydrochloric acid, and the cationic guar gum with transparent glue was obtained after washing, filtering and drying. The output of cationic guar gum is 147 g...
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