耐盐型淀粉-海藻酸钠二元生物基保水剂的制备与表征及性能研究  

Preparation,Characterization and Performance of Salt-tolerant Starch-sodium Alginate Binary Bio-based Water-retaining Agent

作　　者：黄宇诗 陈慧君[1] 叶晓霞[1] 刘以凡[1] 刘明华[1,2] HUANG Yushi;CHEN Huijun;YE Xiaoxia;LIU Yifan;LIU Minghua(College of Environmental and Safety Engineering,Fuzhou University,Fuzhou 350108,China;College of Environmental and Biological Engineering,Putian University,Putian 351100,China)

机构地区：[1]福州大学环境与安全工程学院,福建福州350108 [2]莆田学院环境与生物工程学院,福建莆田351100

出　　处：《纤维素科学与技术》2025年第1期31-38,I0003,共9页Journal of Cellulose Science and Technology

基　　金：福厦泉国家自主创新示范区城乡生态环境质量提升关键技术协同创新平台项目(编号:2022-P-024)。

摘　　要：以生物大分子淀粉(ST)、海藻酸钠(SA)为骨架,采用溶液聚合法将丙烯酰胺(AM)、2-丙烯酰胺-2-甲基丙磺酸(AMPS)接枝到淀粉-海藻酸钠骨架上,合成耐盐型生物基保水剂。AMPS的加入为体系中引入磺酸基团,使产物的耐盐性提高。通过傅里叶变换红外光谱与X-射线衍射分析得到生物基与单体成功接枝聚合。利用单因素实验优化工艺条件得出最佳制备方案。性能测试表明,该耐盐型生物基保水剂可重复使用且热稳定性良好,在质量分数为的0.90%NaCl溶液、0.90%KCl溶液、0.90%NH_(4)Cl溶液中吸液倍率分别为118g/g、117g/g、117g/g。该研究成功制备出一种成本低、生物可降解且在多种盐溶液中均展现较好的吸液能力的耐盐型生物基保水剂。Salt-tolerant bio-based water-retaining agent was synthesized by solution polymerization using biomacromolecule starch(ST)and sodium alginate(SA)as the backbone and acrylamide(AM)and 2-acrylamide-2-methylpropanesulfonic acid(AMPS)as the monomers.The addition of AMPS introduces sulfonic acid groups to the system,resulting in improved salt tolerance of the product.Successful graft polymerization of bio-based and monomers was obtained by Fourier transform infrared spectroscopy and X-ray diffraction analysis.The process conditions were optimized using single factor experiments to arrive at the optimal preparation scheme.The performance tests showed that the salt-tolerant bio-based water-retaining agent was reusable and thermally stable,with an absorption capacity of 118 g/g,117 g/g,and 117 g/g in 0.9%NaCl solution,0.9%KCl solution,and 0.9%NH_(4)Cl solution,respectively,at mass fraction.In this study,a salt-tolerant bio-based water-retaining agent was successfully prepared that is low cost,biodegradable and exhibits good absorption ability in a variety of salt solutions.

关 键 词：淀粉 海藻酸钠 保水剂 吸液倍率 

分 类 号：S482.99[农业科学—农药学]