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Preparation and anti‐evaporation properties of organic–inorganic superabsorbent based on Tragacanth gum and clay
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-03-30 , DOI: 10.1002/app.50777 Junji Zhao 1 , Xueyan Qiu 1 , Xiaomei Liu 1 , Xie Ye 1 , Hongran Xiong 1 , Yan Liang 1 , Ziqiang Lei 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-03-30 , DOI: 10.1002/app.50777 Junji Zhao 1 , Xueyan Qiu 1 , Xiaomei Liu 1 , Xie Ye 1 , Hongran Xiong 1 , Yan Liang 1 , Ziqiang Lei 1
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In this study, the application of superabsorbent resin (SAP) in inhibiting the soil moisture evaporation (or slowing down the water outflow) was studied. The clay‐SAP composites were fabricated by grafting of poly (acrylic acid‐N‐hydroxymethyl acrylamide/clay) (GT‐g‐P [AA‐co‐NHA]/clay) on Tragacanth gum (GT), using solution polymerization. The structure, morphology and stability of the clay‐SAP composites were investigated by Fourier transform infrared, scanning electron microscope and TGA. The maximum swelling ratio of Attapulgite (3%)‐, Kaolin (3%)‐ and Montmorillonite (3%)‐SAP composite in deionized water reached 1180, 819 and 525 g/g respectively, and the maximum swelling ratio in tap water reached up to 206, 192 and 170 g/g respectively. Meanwhile, the maximum swelling ratio in 0.9% NaCl solution was 95, 82 and 62 g/g respectively. The water retention of clay‐SAP composites was also analyzed as a function of temperature. In addition, by simulating the desertification area, the effect of the APT (3%)‐SAP composite on the anti‐evaporation performance was studied. The obtained results revealed that the water retention of APT (3%)‐SAP composite was 36% at 45°C for 12 h. Under natural conditions, the evaporation rate of the anti‐evaporation material was inversely proportional to the amount of APT (3%)‐SAP composite added.
中文翻译：
基于黄ga胶和黏土的有机-无机超强吸收剂的制备和抗蒸发性能
在这项研究中，研究了超吸收性树脂（SAP）在抑制土壤水分蒸发（或减缓水分流出）中的应用。通过溶液聚合将聚（丙烯酸-N-羟甲基丙烯酰胺/黏土）（GT-g-P [AA-co-NHA] /黏土）接枝在黄gum胶（GT）上来制备黏土-SAP复合材料。用傅立叶变换红外光谱仪，扫描电子显微镜和TGA对粘土-SAP复合材料的结构，形貌和稳定性进行了研究。在去离子水中，凹凸棒石（3％），高岭土（3％）和蒙脱石（3％）-SAP复合材料的最大溶胀率分别达到1180、819和525 g / g，自来水中的最大溶胀率达到分别高达206、192和170 g / g。同时，在0.9％NaCl溶液中的最大溶胀率分别为95、82和62g / g。还分析了粘土-SAP复合材料的保水率随温度的变化。此外，通过模拟荒漠化区域，研究了APT（3％）-SAP复合材料对防蒸发性能的影响。获得的结果表明，APT（3％）-SAP复合材料在45°C下保持12 h的保水率为36％。在自然条件下，抗蒸发材料的蒸发速率与APT（3％）-SAP复合材料的添加量成反比。
更新日期：2021-05-17
中文翻译：
基于黄ga胶和黏土的有机-无机超强吸收剂的制备和抗蒸发性能
在这项研究中，研究了超吸收性树脂（SAP）在抑制土壤水分蒸发（或减缓水分流出）中的应用。通过溶液聚合将聚（丙烯酸-N-羟甲基丙烯酰胺/黏土）（GT-g-P [AA-co-NHA] /黏土）接枝在黄gum胶（GT）上来制备黏土-SAP复合材料。用傅立叶变换红外光谱仪，扫描电子显微镜和TGA对粘土-SAP复合材料的结构，形貌和稳定性进行了研究。在去离子水中，凹凸棒石（3％），高岭土（3％）和蒙脱石（3％）-SAP复合材料的最大溶胀率分别达到1180、819和525 g / g，自来水中的最大溶胀率达到分别高达206、192和170 g / g。同时，在0.9％NaCl溶液中的最大溶胀率分别为95、82和62g / g。还分析了粘土-SAP复合材料的保水率随温度的变化。此外，通过模拟荒漠化区域，研究了APT（3％）-SAP复合材料对防蒸发性能的影响。获得的结果表明，APT（3％）-SAP复合材料在45°C下保持12 h的保水率为36％。在自然条件下，抗蒸发材料的蒸发速率与APT（3％）-SAP复合材料的添加量成反比。
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