用于混凝土保护的基于动态共价键的高强度自愈合聚氨酯

IF 1 4区化学 Q4 POLYMER SCIENCE

Polymer Science, Series B Pub Date : 2024-10-10 DOI:10.1134/S1560090424601110

Wei Yang, Zhongyang Zhou, Aimin Ran, Jiachang Peng, Xuexue Fu, Yuegang Cao, Liangkun Zhang, Bing Fan

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引用次数: 0

摘要

为了延长混凝土在恶劣环境中的使用寿命，本文介绍了一种具有自我修复能力的有机硅改性聚氨酯。有机硅和二硫键融入聚氨酯分子链，赋予了该材料自我修复能力和憎水性。硅氧烷的加入大大增强了聚氨酯的疏水性，而二硫键的引入则能在温和的条件下修复损伤，修复效率可达 90%。憎水性和自我修复性能的结合对于保护混凝土和确保其长期使用至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

High-Strength and Self-Healing Polyurethane Based on Dynamic Covalent Bonds for Concrete Protection

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High-Strength and Self-Healing Polyurethane Based on Dynamic Covalent Bonds for Concrete Protection

To extend the service life of concrete in harsh environments, this paper introduces a silicone-modified polyurethane with self-repairing capabilities. The integration of silicone and disulfide bonding into the polyurethane molecular chain endows the material with a self-repairing ability and hydrophobicity. The incorporation of silicone significantly enhances the polyurethane’s hydrophobicity, while the introduction of disulfide bonds enables damage repair under mild conditions, and the repair efficiency can reach 90%. This combination of hydrophobicity and self-repairing properties holds paramount importance in protecting concrete and ensuring its prolonged use.

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来源期刊

Polymer Science, Series B 化学-高分子科学

CiteScore

1.80

自引率

8.30%

发文量

审稿时长

>0 weeks

期刊介绍： Polymer Science, Series B is a journal published in collaboration with the Russian Academy of Sciences. Series B experimental and theoretical papers and reviews dealing with the synthesis, kinetics, catalysis, and chemical transformations of macromolecules, supramolecular structures, and polymer matrix-based composites (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed