| 吕泽昆,张勇,樊伟杰,刘宏禧.聚乙二醇为软段聚氨酯自修复涂层性能研究[J].装备环境工程,2020,17(2):25-30. LYU Ze-kun,ZHANG Yong,FAN Wei-jie,LIU Hong-xi.Performance of Soft Segment Self-healing Polyurethane Coating of Polyethylene Glycol (PEG)[J].Equipment Environmental Engineering,2020,17(2):25-30. |
| 聚乙二醇为软段聚氨酯自修复涂层性能研究 |
| Performance of Soft Segment Self-healing Polyurethane Coating of Polyethylene Glycol (PEG) |
| 投稿时间：2019-07-01 修订日期：2019-08-06 |
| DOI：10.7643/issn.1672-9242.2020.02.005 |
| 中文关键词: 自修复 聚氨酯 形状记忆 |
| 英文关键词:self-healing polyurethane shape memory |
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| 中文摘要: |
| 目的 设计并制备一种特殊分子结构的新型聚氨酯，并将其形状记忆性能应用于涂层自修复。通过与市售同类涂层进行性能对比，更为严谨科学地评测新型自修复涂层的性能。方法 以羟甲基丁酸、二甲基甲酰胺作为扩链剂，采用聚乙二醇为分子链软段，以异佛尔酮二异氰酸酯为硬段，采用溶液聚合法得到水性聚氨酯。设置对照组，涂以不同聚氨酯涂层，进行加速腐蚀试验。使用体视显微镜测试、傅氏转换红外光谱分析、热重分析、电化学工作站对聚氨酯的表面形貌、化学结构、热性、极化特性及交流阻抗等性能指标参数进行测试。结果 同等划痕处理情况下，所制备的自修复聚氨酯各项性能明显优于市面上使用的聚氨酯有机涂层材料性能。结论 具有形状记忆性能的聚氨酯具有良好的自修复性能，可用于自修复涂层的成膜物。 |
| 英文摘要: |
| The paper aims to design and prepare a special molecular structure of new type polyurethane, apply its memory performance to self-healing of coating, and evaluate the performance of the new self-healing coating more rigorously and scientifically, compared with that of similar commercial coating. With hydroxyl methyl butyric acid and dimethyl formamide as chain extenders, with polyethylene glycol (peg) as the molecular soft segments, and with isophorone diisocyanate as hard segment, waterborne polyurethane was obtained by solution polymerization. The control group was set and coated with different polyurethane coatings in the accelerated corrosion test. Stered microscope test, Fourier transform infrared spectroscopy, thermogravimetric analysis, electrochemical workstation were adopted to test surface morphology, chemical structure, thermal resistance, polarization and ac impedance performance and other parameters of polyurethane. Under the same condition of scratch processing, the performance of self-healing polyurethane prepared was better than that of the polyurethane organic coating materials on the market. Polyurethane of shape memory has good self-healing performance. It can be used to repair forming matters of self-healing coatings. |
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