FIELD: agriculture.
SUBSTANCE: sorbent contains a polymeric matrix based on acrylamide, N,N'-dimethylacrylamide and acrylic acid, and a filler - bentonite. The ratio of polymer matrix: bentonite is from 1:0.05 to 1:1 of mass fractions. As a cross-linking agent, a vinyl derivative of polysaccharides and acrylic acid neutralized with the mixture of potassium and ammonium alkali with the neutralisation degree of 0.7-0.9 are used.
EFFECT: invention allows to obtain a sorbent with high moisture retention indices at an elevated soil temperature.
2 tbl
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| POLYMER COMPOSITE MOISTURE-RETAINING MATERIAL AND METHOD FOR ITS PRODUCTION | 2016 |
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| COMPOSITE MATERIAL CAPABLE OF FORMING HYDROGEL, AND HYDROGEL | 2005 |
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RU2634428C2 |
