中国塑料 ›› 2024, Vol. 38 ›› Issue (12): 48-53.DOI: 10.19491/j.issn.1001-9278.2024.12.008

• 材料与性能 • 上一篇    下一篇

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

董志慧1,2(), 曲楠1,2, 张雪1,2, 韩櫂濂1,2, 程志强1,2()   

  1. 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
  • 收稿日期:2024-04-08 出版日期:2024-12-26 发布日期:2024-12-25
  • 通讯作者: 程志强(1976-),男,教授,博士生导师,从事环境污染物的降解处理及新型肥料研究与应用,czq5974@163.com
    E-mail:dzh1428736830@163.com;czq5974@163.com
  • 作者简介:董志慧(1998-),女,硕士研究生,研究方向是农产品化学,dzh1428736830@163.com
  • 基金资助:
    吉林省科技厅科技发展计划重点研发项目(20240304156SF)

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

DONG Zhihui1,2(), QU Nan1,2, ZHANG Xue1,2, HAN Zhaolian1,2, CHENG Zhiqiang1,2()   

  1. 1.College of Resources and Environment,Jilin Agricultural University,Changchun 130118,China
    2.Jilin Provincial Science and Technology Innovation Center of Health Products and Medical Materials with Characteristic Resources,Changchun 130118,China
  • Received:2024-04-08 Online:2024-12-26 Published:2024-12-25
  • Contact: CHENG Zhiqiang E-mail:dzh1428736830@163.com;czq5974@163.com

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。

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

Abstract:

A type of polyacrylic acid sodium/Phellinus igniarius section composite superabsorbent resin (PISSR) was synthesized 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 absorption 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.

Key words: Phellinus igniarius segment, sodium polyacrylate, superabsorbent resin, liquid absorption rate, water retention capacity

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