Hydroxypropyl cellulose-g-poly (acrylicacid-co-2-acrylamido-2-methyl-1-propane sulfonic acid)/laterite (HPC-g-P (AA-co-AMPS)/laterite) with excellent water (salt) absorbency, water retention performance, re-swelling property, and fast water absorption rate was prepared by free-radical polymerization. The structure and morphology of the synthetic materials were characterized by FTIR, SEM, and TGA. The water absorbency of superabsorbent resin in different salt solutions was studied, and it was proved that the superabsorbent resin was more sensitive to salt solutions. The swelling kinetic mechanism of superabsorbent resin was explained by pseudo-second-order swelling kinetic model. The effects of the ratio of laterite to loess on water evaporation and the content of superabsorbent resin on soil water evaporation and shrinkage of soil crust were studied.

中文翻译：

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快速吸水率的高吸水性树脂在土壤中的水分蒸发性能

羟丙基纤维素-g-聚（丙烯酸-co-2-丙烯酰胺基-2-甲基-1-丙烷磺酸）/红土（HPC-gP（AA-co-AMPS）/红土）具有优异的吸水率（盐），水通过自由基聚合制备保留性能，再溶胀性能和快速吸水率。用FTIR，SEM和TGA对合成材料的结构和形貌进行了表征。研究了高吸收性树脂在不同盐溶液中的吸水率，证明该高吸收性树脂对盐溶液更敏感。用伪二级溶胀动力学模型解释了超吸收性树脂的溶胀动力学机理。