塑料科技2025，Vol.53Issue(6)：121-125,5.DOI:10.15925/j.cnki.issn1005-3360.2025.06.021
金属离子溶液浸泡策略提升聚丙烯酸水凝胶微珠的力学性能研究
Study on Mechanical Properties Improvement of Polyacrylic Acid Hydrogel Microspheres by Immersion Strategy of Metal Ion Solution
摘要
Abstract
The mechanical properties(such as compressive strength,breaking strain,etc.)and water absorption properties of polyacrylic acid hydrogel microspheres were studied and controlled by a simple ion immersion strategy.The effects of ion types and concentrations on the mechanical properties and water absorption properties of hydrogels were explored.The results show that the hydrogels soaked in ions not only have excellent mechanical properties,but also have the strongest compression resistance in the white hydrogels soaked in Fe3+,which can withstand a maximum of 26.7 N,but the hydrogel microspheres soaked in Na+show good thermal stability under high temperature heating.The hydrogel microspheres soaked in Ni2+and Fe3+exhibit superior thermal stability.In addition,the hydrogel microspheres also exhibit rapid swelling ability,and the decrease in the swelling rate of the gel after the addition of ionic solution can be attributed to the fact that the high content of ions greatly increases the crosslinking density of the hydrogel,and the dense network limits the further swelling of the hydrogel,resulting in a decrease in the swelling rate.关键词
水凝胶/聚丙烯酸/力学性能/吸水性能/压缩强度Key words
Hydrogel/Polyacrylic acid/Mechanical properties/Water absorption performance/Compressive strength分类
化学化工引用本文复制引用
芮国芬,刘海燕,曹峥,刘春林..金属离子溶液浸泡策略提升聚丙烯酸水凝胶微珠的力学性能研究[J].塑料科技,2025,53(6):121-125,5.基金项目
国家自然科学基金(21704008) （21704008）
江苏省研究生科研创新计划(KYCX24_3163) （KYCX24_3163）
