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首页> 外文期刊>Journal of Applied Polymer Science >Preparation of superabsorbent composite based on acrylic acid-hydroxypropyl distarch phosphate and clinoptilolite for agricultural applications
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Preparation of superabsorbent composite based on acrylic acid-hydroxypropyl distarch phosphate and clinoptilolite for agricultural applications

机译：基于丙烯酸 - 羟丙基磷酸盐和临床农业应用的超吸收复合材料的制备

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摘要

Recently, using superabsorbent polymers (SAPs) are considered as a solution for reducing the water consumption particularly in agricultural applications. Presented here is the synthesis of a novel biocompatible SAP, utilizing for reducing the water consumption particularly in agricultural applications via graft copolymerization of hydroxypropyl distarch phosphate (HDP) based on tapioca starch with acrylic acid (AA), loading with clinoptilolite zeolites. A two-level factorial design of experiments, investigating the effect of the SAP composition on the water absorbency exhibited that the optimum SAP has the maximum water absorbencies of 1075 and 67 g g(-1) in distilled water and 0.9 wt % NaCl solution, respectively. The chemical structure of the best superabsorbent was characterized using Fourier transform infrared, X-ray diffraction, thermogravimetric analysis, and scanning electron microscopy analyses. The results revealed that AA was successfully grafted onto HDP and surface morphology of the superabsorbent was improved with incorporated clinoptilolite zeolites. In addition, the results of water absorption in different soil textures showed that within a first week after irrigation, the soil texture with 100% sand has the maximum water retention (69.6 g more than its control sample), as well as that with 50% sand, loses the absorbed moisture 49 days later than its control sample. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47365.
机译：最近，使用超吸收性聚合物（SAPs）被认为是用于降低含水量的溶液，特别是在农业应用中。这里介绍的是一种新型生物相容性SAP的合成，利用基于Tapioca淀粉与丙烯酸（AA）的羟丙基磷酸淀粉（HDP）接枝共聚来减少水消耗，其通过接枝共聚合通过丙烯酸（AA），用Clinophitolite沸石加载。实验的两级因子设计，研究SAP组合物对吸水性的影响表明，最佳SAP分别在蒸馏水和0.9wt％NaCl溶液中具有1075和67gg（-1）的最大吸水性。使用傅里叶变换红外，X射线衍射，热重分析和扫描电子显微镜分析表征了最佳超吸收剂的化学结构。结果表明，AA已成功接枝到HDP上，并用掺入的Clinopholegolite沸石改善了超吸收性的表面形态。此外，不同土壤纹理中吸水结果显示，在灌溉后的第一周内，土壤质地具有100％砂的土壤质地具有最大水保留（69.6克比其对照样品多69.6克），以及50％沙子，比其对照样品更晚49天失去吸收的水分。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2019,136,47365。

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