Renewable plant cellulose water reducing agent for cements and preparation method thereof
A plant cellulose and water reducing agent technology, applied in the field of cement additives, to achieve the effect of strong self-repair ability, high energy consumption, and large pollution
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Embodiment 1
[0025] Add 10g of plant cellulose extracted from apple pomace to 100g of 95% ethanol, then add potassium hydroxide solution with a concentration of 45%, and stir for 60min at room temperature; then add 8g of ethanol solution with a concentration of 80% Stir and react with oxyacetic acid at 55°C for 40 minutes; then add 10 g of solid potassium hydroxide, continue stirring for 30 minutes, and add 8 g of 80% ethanol solution and oxyacetic acid respectively, repeat the previous step twice, and use 100 g The product obtained was dissolved in ethanol at 50°C, filtered and evaporated to dryness. A renewable plant cellulose cement water reducer provided by the invention is prepared.
Embodiment 2
[0027] Add 10g of plant cellulose extracted from old cotton to 135g of 95% ethanol, then add 50% potassium hydroxide solution, stir at room temperature for 100min; then add 12g of 80% ethanol solution With oxyacetic acid, stir and react at 60°C for 60 minutes; then add 12g of solid potassium hydroxide, continue stirring for 50 minutes, and add 12g of 80% ethanol solution and oxyacetic acid respectively, repeat the previous step 3 times, use 150g The product obtained was dissolved in ethanol at 50°C, filtered and evaporated to dryness. A renewable plant cellulose cement water reducer is prepared.
Embodiment 3
[0029] Add 10g of plant cellulose extracted from apple pomace to 100g of 95% ethanol, then add 40% sodium hydroxide solution, stir at room temperature for 70min; then add 10g of 80% ethanol solution With oxyacetic acid, stir and react at 45°C for 30 minutes; then add 11g of solid sodium hydroxide, continue stirring for 40 minutes, and add 10g of 80% ethanol solution and oxyacetic acid respectively, repeat the previous step 3 times, use 150g B Dissolve the obtained product at 50°C, filter and evaporate to dryness. A renewable plant cellulose cement water reducer is prepared.
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