高等学校化学学报 ›› 2018, Vol. 39 ›› Issue (8): 1823-1828.doi: 10.7503/cjcu20180174

• 高分子化学 • 上一篇    下一篇

亲水性形状记忆环氧树脂制备及表面浸润性调控

钱艺豪1, 张东杰1, 成中军2(), 康红军1, 刘宇艳1()   

  1. 1. 哈尔滨工业大学化工与化学学院, 新能源转换与储存关键材料技术工业和信息化部重点实验室,2. 基础与交叉科学研究院, 哈尔滨 150001
  • 收稿日期:2018-03-06 出版日期:2018-08-10 发布日期:2018-08-10
  • 作者简介:联系人简介: 成中军, 男, 博士, 副研究员, 主要从事表面浸润性研究. E-mail: chengzhongjun@iccas.ac.cn;刘宇艳, 女, 博士, 教授, 主要从事形状记忆聚合物研究. E-mail: liuyy@hit.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 51573035, 21674030)资助.

Preparation of Hydrophilic Epoxy Resin and Its Wettability Regulation

QIAN Yihao1, ZHANG Dongjie1, CHENG Zhongjun2,*(), KANG Hongjun1, LIU Yuyan1,*()   

  1. 1. Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage,Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering,2. Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, China
  • Received:2018-03-06 Online:2018-08-10 Published:2018-08-10
  • Contact: CHENG Zhongjun,LIU Yuyan E-mail:chengzhongjun@iccas.ac.cn;liuyy@hit.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.51573035, 21674030).

摘要:

采用聚乙二醇(PEG)对间苯二甲胺(MXDA)固化的TDE-85环氧树脂体系进行改性, 制备了亲水性形状记忆环氧树脂, 结合微形貌构筑和热响应方式对树脂表面浸润性进行智能调控. 结果表明, PEG的引入有效地增加了TDE-85环氧树脂的亲水性. PEG的最佳含量为20%(质量分数)时, 树脂表面的接触角为54°, 实现了环氧树脂从原始TDE-85/MXDA固化体系表面的疏水性(接触角为108°)到TDE-85/MXDA/PEG固化体系表面亲水性的转变; 改性后树脂的玻璃化转变温度T g为71 ℃, 形状固定率和回复率分别为96.10%和99.97%, 表明得到的树脂具有良好的形状记忆性能. 进一步采用模板法在树脂表面构筑了微阵列结构, 基于形状记忆效应, 通过对表面微阵列形态的控制, 实现了环氧树脂表面介于亲水性(接触角为51°)与超亲水性(接触角为0°)间的可逆浸润性智能调控.

关键词: 环氧树脂, 亲水性, 微形貌, 形状记忆, 浸润性调控, 聚乙二醇

Abstract:

A hydrophilic shape memory epoxy resin was prepared by introducing polyethylene glycol(PEG) into the 4,5-epoxy cyclohexane-1,2-2-phthalate glycidyl ester(TDE-85) epoxy/m-phenylenediamine(MXDA) system, meanwhile, its surface wettability could be controlled by changing its pillar structure under external thermal-stimuli. The result shows that the introduction of PEG effectively increases the hydrophilicity of TDE-85 epoxy resin, and the optimal amount of PEG is 20%(mass fraction). In this condition, the water contact angle is about 54 °, indicating the realization of wetting conversion from the original hydrophobic TDE-85 epoxy resin/MXDA curing system(water contact angle is about 108°) to the hydrophilic TDE-85/MXDA/PEG system. The Tg of the obtained material is 71 ℃, and its shape fixed ratio and recovery ratio are 96.10% and 99.97%, respectively, meaning that the obtained material has a good shape memory property. The micropillars onto the surface by the template method, reversible wetting switching between the hydrophilicity(51°) and the superhydrophilicity(0°) can be realized based on the shape memory ability.

Key words: Epoxy resin, Hydrophilicity, Microstructure, Shape memory, Reversible wetting control, Polyethylene glycol

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