摘要
具有形状记忆功能的水凝胶材料在可穿戴电子设备方面的应用具有广阔的应用前景。如何利用更加简洁的方法制备出新型的环保型水凝胶材料目前仍然是一个大的挑战。研究通过采用冷冻—解冻的制备方法,得到了一种具有形状记忆功能的新型水凝胶材料。在该材料中,微纤化纤维素通过氢键与海藻酸钠结合,增强了水凝胶网络的机械性能,铁离子与海藻酸钠的羧基官能团配位,从而以共价键方式与水凝胶网络骨架稳定相连,进一步增强水凝胶网络骨架的力学性能。该材料可以用于识别五倍子酸。该类水凝胶材料的制备方法具有良好的应用前景。
The application of hydrogel materials with shape memory functions in wearable electronic devices has broad application prospects.How to use a more concise method to prepare a new type of environmentally friendly hydrogel material is still a big challenge.The research has obtained a new type of hydrogel material with shape memory function by adopting the preparation method of freezing and thawing.In this material,microfibrillated cellulose is combined with sodium alginate through hydrogen bonds to enhance the mechanical properties of the hydrogel network,and iron ions are coordinated with the carboxyl functional groups of sodium alginate to covalently bond with the water.The gel network skeleton is stably connected,which further enhances the mechanical properties of the hydrogel network skeleton.This material can be used to identify gallic acid.The preparation method of this type of hydrogel material has good application prospects.
作者
代天卫
杨德超
刘丰祎
Dai Tianwei;Yang Dechao;Liu Fengyi(College of Chemistry and Chemical Engineering,Yunnan Normal University,Kunming,650500,China)
出处
《云南化工》
CAS
2021年第1期26-28,共3页
Yunnan Chemical Technology
基金
国家自然科学基金-地区基金项目(21661034)
