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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and anti-evaporation properties of organic-inorganic superabsorbent based on Tragacanth gum and clay
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Preparation and anti-evaporation properties of organic-inorganic superabsorbent based on Tragacanth gum and clay

机译：基于TragaCanth Gum和粘土的有机 - 无机超吸收剂的制备及抗蒸发性能

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摘要

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 degrees 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.
机译：研究了高吸水树脂（SAP）在抑制土壤水分蒸发（或减缓水分外流）中的应用。采用溶液聚合法，将聚（丙烯酸-N-羟甲基丙烯酰胺/粘土）（GT-g-P[AA-co-NHA]/粘土）接枝到黄芩胶（GT）上，制备了粘土SAP复合材料。通过傅立叶变换红外光谱、扫描电镜和热重分析研究了粘土-SAP复合材料的结构、形貌和稳定性。凹凸棒土（3%）、高岭土（3%）和蒙脱土（3%）SAP复合材料在去离子水中的最大溶胀率分别达到1180、819和525g/g，在自来水中的最大溶胀率分别达到206、192和170g/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-树液复合材料的保水性随温度的变化。此外，通过模拟沙漠化地区，研究了APT（3%）-SAP复合材料对防蒸发性能的影响。结果表明，APT（3%）-SAP复合材料在45℃下12小时的保水率为36%。在自然条件下，防蒸发材料的蒸发率与APT（3%）-SAP复合材料的添加量成反比。

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  • 来源
    《Journal of Applied Polymer Science》 |2021年第32期|共13页
  • 作者

    Zhao Junji; Qiu Xueyan; Liu Xiaomei; Ye Xie; Xiong Hongran; Liang Yan; Lei Ziqiang;

  • 作者单位

    Northwest Normal Univ Key Lab Ecoenvironm Polymer Mat Gansu Prov Coll Chem &

    Chem Engn Key Lab Ecofunct Polymer Mat Minist Educ Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Key Lab Ecoenvironm Polymer Mat Gansu Prov Coll Chem &

    Chem Engn Key Lab Ecofunct Polymer Mat Minist Educ Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Key Lab Ecoenvironm Polymer Mat Gansu Prov Coll Chem &

    Chem Engn Key Lab Ecofunct Polymer Mat Minist Educ Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Key Lab Ecoenvironm Polymer Mat Gansu Prov Coll Chem &

    Chem Engn Key Lab Ecofunct Polymer Mat Minist Educ Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Key Lab Ecoenvironm Polymer Mat Gansu Prov Coll Chem &

    Chem Engn Key Lab Ecofunct Polymer Mat Minist Educ Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Key Lab Ecoenvironm Polymer Mat Gansu Prov Coll Chem &

    Chem Engn Key Lab Ecofunct Polymer Mat Minist Educ Lanzhou 730070 Peoples R China;

    Northwest Normal Univ Key Lab Ecoenvironm Polymer Mat Gansu Prov Coll Chem &

    Chem Engn Key Lab Ecofunct Polymer Mat Minist Educ Lanzhou 730070 Peoples R China;

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  • 正文语种 eng
  • 中图分类 高分子化合物工业（高聚物工业）;
  • 关键词

    applications; adsorption; hydrophilic polymers; kinetics;

    机译：应用;吸附;亲水聚合物;动力学;

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