聚丙烯酸钠/桑黄菌段复合高吸水树脂的制备及溶胀性能研究  

Preparation and swelling performance of sodium polyacrylate/Phellinus igniarius segment composite superabsorbent resin

作　　者：董志慧 曲楠[1,2] 张雪 韩櫂濂[1,2] 程志强 DONG Zhihui;QU Nan;ZHANG Xue;HAN Zhaolian;CHENG Zhiqiang(College of Resources and Environment,Jilin Agricultural University,Changchun 130118,China;Jilin Provincial Science and Technology Innovation Center of Health Products and Medical Materials with Characteristic Resources,Changchun 130118,China)

机构地区：[1]吉林农业大学资源与环境学院,长春130118 [2]吉林省特色资源健康产品与医用材料科技创新中心,长春130118

出　　处：《中国塑料》2024年第12期48-53,共6页China Plastics

基　　金：吉林省科技厅科技发展计划重点研发项目(20240304156SF)。

摘　　要：采用微波辐射加热引发合成聚丙烯酸钠/桑黄菌段复合高吸水树脂(PISSR)。采用单因素试验研究变量配比方案,优化制备工艺,通过傅里叶变换红外光谱、热重分析仪、扫描电子显微镜及能谱对材料进行表征。结果表明,在桑黄菌段、引发剂、交联剂用量分别为丙烯酸的20%、0.60%、0.15%,丙烯酸中和度为85%、微波功率为500 W时,PISSR吸液倍率最大,在蒸馏水中为652.6 g/g,0.9%NaCl溶液中为61.1 g/g;离子类型和电解质浓度是影响PISSR吸液性能的重要因素;PISSR表面粗糙多孔,富含Na、K、Ca元素,同时具有良好的保水性能以及再溶胀性能。A type of polyacrylic acid sodium/Phellinus igniarius section composite superabsorbent resin(PISSR)was syn-thesized through microwave irradiation.A single-factor experiment was conducted to investigate the variable ratio scheme and optimize the preparation processes.The as-synthesized materials were characterized by FTIR,TGA,SEM,and EDS.The results indicated that the neutralization degree of acrylic acid reached 85%when the dosage of Phellinus igniarius,initiator,and crosslinking agent was 20%,0.60%,and 0.15%of acrylic acid,respectively.PISSR presented the highest liquid absorption rates of 652.6 g/g in distilled water and 61.1 g/g in 0.9%NaCl solution at a microwave power of 500 W.Ion type and electrolyte concentration are two important factors affecting the liquid ab-sorption performance of PISSR.The surface of PISSR is rough,porous,and rich in Na,K and Ca elements,indicating good water retention and re-swelling performance.

关 键 词：桑黄菌段 聚丙烯酸钠 高吸水树脂 吸液倍率 保水性能 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业]