Environment-friendly dust depressor and preparation method thereof
A dust suppressant, an environmentally friendly technology, applied in the field of environmental pollution control, can solve the problems of low moisture retention rate, short dust suppression time of dust suppressant, etc., and achieve the effects of low surface tension, increased solubility, and improved solution viscosity
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[0025] The preparation method of water-absorbing active agent is:
[0026] (1) Take acrylic acid and add deionized water according to the mass ratio of 2~5:10~15, stir and mix at 30~40°C for 20~30min, then add dropwise 10~20% of the mass of acrylic acid and 20% sodium hydroxide solution to obtain a mixed solution, take the mixed solution and add acrylamide and polyethylene glycol diacrylamide at a mass ratio of 10~20:3~5:2~6, heat up to 40~50°C and stir and mix for 1~3h to obtain a stirred mixture ,spare;
[0027] (2) Take konjac powder according to the mass ratio of 1~3:10~15, add citric acid solution with a mass fraction of 5%, stir and mix at 55~60°C for 60~80min, let stand for 50~60min, then add konjac powder 10~20 times the mass fraction of ethanol with a mass fraction of 80%, suction filtration, take the suction filter residue and dry to obtain a dry product, take sodium hydroxide and add absolute ethanol at a mass ratio of 2~5:80~100, stir and mix for 5~10min , add 2~...
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