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首页> 外文期刊>Journal of Polymers and the Environment >A Superabsorbent Resin with Photo and Biological Double Degradability Containing Organic Montmorillonite and Titanium Oxide
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A Superabsorbent Resin with Photo and Biological Double Degradability Containing Organic Montmorillonite and Titanium Oxide

机译：具有照片和生物双降解性的超吸收性树脂，含有有机蒙脱石和氧化钛

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摘要

A superabsorbent resin (SAR) with good degradability was prepared with acrylic acid (AA), acrylamide (AM), 2-acrylamido-2-methylpropane sulfonic acid (AMPS), organic montmorillonite (OMMT) and titanium dioxide (TiO2) through inverse suspension polymerization, using potassium persulfate (KPS) as initiator and N,N-methylenebisacrylamide (MBA) as crosslinker. The structure and micrographs of the SAR were fully characterized with Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD). Meanwhile, the effects of major factors such as initiator, crosslinker, OMMT and TiO(2)contents and the oil-water ratio on liquid absorbency were investigated, which reached 769.3 g/g in distilled water and 91.1 g/g in 0.9wt% NaCl solution, respectively. The equilibrium degradation performances were evaluated under the optimum conditions by the mass loss of the SAR in the soil and under the ultraviolet light, which reached 32.3wt% after 120 days and 83.9wt% after 40 h, respectively. The introduction of OMMT promoted the photodegradability obviously. The maximum photodgradation of PAA/TiO(2)SAR reached 74.3wt% after 60 h, which was lower than the PAA/OMMT/TiO(2)SAR. The degradable SAR has an encouraging potential for agricultural and forestry applications.
机译：通过逆悬浮用丙烯酸（AA），丙烯酰胺（AA），丙烯酰胺（AA），丙烯酰胺（AA），丙烯酰胺（AA），丙烯酰胺（AA），丙烯酰胺（AMP），有机蒙脱石（OMMT）和二氧化钛（TiO 2）制备具有良好可降解性的超吸收性树脂（SAR）聚合，使用过硫酸钾（KPS）作为引发剂和N，N-亚甲基异丙术（MBA）作为交联剂。 SAR的结构和显微照片用傅里叶变换红外光谱（FTIR），扫描电子显微镜（SEM），X射线衍射（XRD）具有完全表征。同时，研究了主要因素，交联剂，OMMT和TiO（2）含量和油水比的主要因素对液体吸收性的影响，蒸馏水达769.3g / g，91.1g / g在0.9wt％分别为NaCl溶液。通过土壤中的SAR和紫外光下的SAR的质量损失在最佳条件下评估平衡降解性能，分别在40天后达到32.3wt％，40小时后达到32.3wt％。显然，OMMT的引入促进了光降解性。 PAA / TiO（2）SAR的最大光致脱极分解在60小时后达到74.3wt％，低于PAA / OMMT / TIO（2）SAR。可降解的SAR具有令人鼓舞的农业和林业应用的潜力。

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  • 来源
    《Journal of Polymers and the Environment》 |2020年第10期|2702-2709|共8页
  • 作者

    Yu Xianglin; Cheng Kai; Xiang Yu; Mei Hua; Wang Jiapei; Li Junbo;

  • 作者单位

    Wuhan Inst Technol Sch Chem & Environm Engn Wuhan 430000 Peoples R China|Wuhan Inst Technol Key Lab Green Chem Proc Minist Educ Sch Chem Engn & Pharm Wuhan 430000 Peoples R China;

    Wuhan Inst Technol Key Lab Green Chem Proc Minist Educ Sch Chem Engn & Pharm Wuhan 430000 Peoples R China;

    Wuhan Inst Technol Sch Chem & Environm Engn Wuhan 430000 Peoples R China;

    Wuhan Inst Technol Key Lab Green Chem Proc Minist Educ Sch Chem Engn & Pharm Wuhan 430000 Peoples R China;

    Wuhan Inst Technol Sch Chem & Environm Engn Wuhan 430000 Peoples R China;

    Wuhan Inst Technol Sch Chem & Environm Engn Wuhan 430000 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Superabsorbent resin; Montmorillonite; Titanium oxide; Photo degradation; Biological degradation;

    机译：超吸收性树脂;蒙脱石;氧化钛;照片降解;生物降解;

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