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Preparation of low cost superabsorbent hydrogel by urea and acrylic acid

机译:尿素和丙烯酸制备低成本超吸收性水凝胶

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摘要

We describe a method for the synthesis of low cost superabsorbent hydrogel (LCSH) via solution polymerization with urea, acrylic acid (AA) and N,N'-methylenebisacrylamide (MBA). The various factors influencing the water absorbency of LCSH material were studied, including the mole ratio of urea to AA, weight ratio of MBA to AA (wt%) and neutralization degree of AA. The optimal conditions were found as follows: n(urea):m(AA) = 1.6:1, the weight ratio of MBA to AA (wt%) and the neutralization degree of AA was 0.005% and 85%, respectively. The maximum absorbency in distilled water was 835 gig. The characteristics of LCSH material were investigated by Fourier Transform Infra Red (FTIR), scanning electron microscope (SEM) and precision electronic balance (FEB). The results indicated that LCSH material was successfully developed and it's broad network structure offers the hydrogels excellent water absorbency. (C) 2017 Elsevier B.V. All rights reserved.
机译:我们描述了一种通过与尿素,丙烯酸(AA)和N,N'-亚甲基双丙烯酰胺(MBA)进行溶液聚合来合成低成本超吸收性水凝胶(LCSH)的方法。研究了影响LCSH材料吸水率的各种因素,包括尿素与AA的摩尔比,MBA与AA的重量比(wt%)和AA的中和度。发现最佳条件如下:n(脲)∶m(AA)= 1.6∶1,MBA与AA的重量比(wt%)和AA的中和度分别为0.005%和85%。在蒸馏水中的最大吸收度为835 gig。通过傅立叶变换红外(FTIR),扫描电子显微镜(SEM)和精密电子天平(FEB)研究了LCSH材料的特性。结果表明,LCSH材料已成功开发,其广泛的网络结构为水凝胶提供了优异的吸水性。 (C)2017 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Materials Letters》 |2017年第1期|16-18|共3页
  • 作者单位

    Shandong Agr Univ, Natl Engn Lab Efficient Utilizat Soil & Fertilize, Natl Engn & Technol Res Ctr Slow & Controlled Rel, Coll Resources & Environm, Tai An 271018, Shandong, Peoples R China|Shandong Kingenta Ecol Engn Co Ltd, State Key Lab Nutr Resources Integrated Utilizat, Linyi 276700, Shandong, Peoples R China;

    Shandong Agr Univ, Natl Engn Lab Efficient Utilizat Soil & Fertilize, Natl Engn & Technol Res Ctr Slow & Controlled Rel, Coll Resources & Environm, Tai An 271018, Shandong, Peoples R China;

    Shandong Agr Univ, Natl Engn Lab Efficient Utilizat Soil & Fertilize, Natl Engn & Technol Res Ctr Slow & Controlled Rel, Coll Resources & Environm, Tai An 271018, Shandong, Peoples R China;

    Stn Soil & Fertilizer Jinan City, Jinan 250014, Shandong, Peoples R China;

    Zuoyun Meteorol Bur, Datong 037100, Shanxi, Peoples R China;

    Chinese Acad Agr Sci, Inst Agr Environm & Sustainable Dev, Beijing 100081, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Acrylic acid; Urea; Low cost; Polymers; Functional;

    机译:丙烯酸;尿素;低成本;聚合物;功能性;

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