高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (8): 20230192.doi: 10.7503/cjcu20230192

• 高分子化学 • 上一篇    

金属离子配位交联的热敏双网络水凝胶环境响应性黏附行为

陈顺兰1, 许丹妮1, 李学锋2,3(), 彭格格1, 黄以万1,3, 龙世军1,3, 张高文1,3   

  1. 1.湖北工业大学材料与化学工程学院, 武汉 430068
    2.湖北隆中实验室, 襄阳 441000
    3.湖北工业大学绿色轻工材料湖北省重点实验室, 武汉 430068
  • 收稿日期:2023-04-18 出版日期:2023-08-10 发布日期:2023-06-08
  • 通讯作者: 李学锋 E-mail:li_xf@hbut.edu.cn
  • 基金资助:
    国家自然科学基金(52073083);湖北隆中实验室自主创新项目(2022ZZ-16)

Environmental Responsive Adhesion Behavior of Metal Ion Crosslinked Thermosensitive Double Network Hydrogel

CHEN Shunlan1, XU Danni1, LI Xuefeng2,3(), PENG Gege1, HUANG Yiwan1,3, LONG Shijun1,3, ZHANG Gaowen1,3   

  1. 1.School of Materials and Chemical Engineering,Hubei University of Technology,Wuhan 430068,China
    2.Hubei Longzhong Laboratory,Xiangyang 441000,China
    3.Hubei Key Laboratory of Green Light Industry Materials,Hubei University of Technology,Wuhan 430068,China
  • Received:2023-04-18 Online:2023-08-10 Published:2023-06-08
  • Contact: LI Xuefeng E-mail:li_xf@hbut.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(52073083);the Independent Innovation Projects of the Hubei Longzhong Laboratory, China(2022ZZ-16)

摘要:

采用“一锅法”制备了具有环境响应性黏附的热敏双网络水凝胶(TDN). 研究结果表明, TDN87.5水凝胶的剪切粘接强度最佳(26.53 kPa). 进一步引入多种价态的金属离子配位交联TDN87.5热敏水凝胶, 拉伸强度提高 1倍以上(由TDN87.5水凝胶的172.46 kPa提高至TDN87.5‐Zr水凝胶的373.72 kPa), 相应剪切粘接强度提高约 16倍(由26.53 kPa提高至447.29 kPa). 通过调整浸泡Zr4+溶液的浓度、 时间和温度等, 得到剪切粘接强度最优(552.62 kPa)的TDN87.5‐Zr0.3@90 ℃水凝胶, 并对多种方法调控TDN热敏水凝胶黏附行为的原理展开讨论, 为开发同时具有高强度、 高界面黏附性能和可控形状变形的新型水凝胶提供了一个新的思路.

关键词: 热敏水凝胶, 金属离子配位, 黏附性能, 环境响应性

Abstract:

A thermally responsive double-network hydrogel(TDN) with environmental response adhesion was prepared by the “one-pot method”, and it was found that TDN87.5 hydrogel had the best shear bond strength(26.53 kPa). Further introducing metal ion coordination crosslinking TDN87.5 thermal hydrogels with multiple valence states, it was found that the tensile strength increased by more than 1 times(from 172.46 kPa of TDN87.5 hydrogel to 373.72 kPa of TDN87.5-Zr hydrogel), and the corresponding shear bond strength increased by about 16 times(from 26.53 kPa to 447.29 kPa). Furthermore, by adjusting the concentration, time and temperature of soaking Zr4+, a TDN87.5-Zr0.3@90 ℃ hydrogel with the best shear adhesion strength(552.62 kPa) was obtained, and the principle of regulating the adhesion behavior of TDN thermal hydrogel by multiple methods was discussed, which provided a new idea for the development of a new hydrogel with high strength, high interfacial adhesion performance and controllable shape deformation.

Key words: Heat-sensitive hydrogel, Metal ion coordination, Adhesion property, Environmental responsiveness

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