纤维素科学与技术2026，Vol.34Issue(1)：31-38,8.DOI:10.16561/j.cnki.xws.2026.01.03
天然多酚/Fe3+/HDI多重协同交联的全水相水下粘合剂
Fully Aqueous Underwater Adhesive Based on Synergistic Crosslinking among Natural Polyphenols/Fe3+/HDI
孔佳利 1涂园园 2严殊颜 1吴继勇 1王润楷 1李娜 3胡继文2
作者信息
- 1. 中国科学院广州化学研究所,广东 广州 510650||中国科学院大学,北京 100049
- 2. 中国科学院广州化学研究所,广东 广州 510650||中国科学院大学,北京 100049||国科广化(南雄)新材料研究院有限公司,广东 南雄 512400||国科广化韶关新材料研究院,广东 韶关 512400||中国科学院新型特种精细化学品工程实验室,广东 广州 510650
- 3. 中国科学院广州化学研究所,广东 广州 510650||国科广化(南雄)新材料研究院有限公司,广东 南雄 512400
- 折叠
摘要
Abstract
Based on a poly(vinyl alcohol)/succinic acid system,a multilevel synergistic crosslinking strategy involving two natural polyphenols—tea polyphenols(TP)and tannic acid(TA)—together with Fe3+and hexamethylene diisocyanate(HDI)was developed to realize a high-performance underwater adhesive under fully aqueous conditions.TP and TA provide a high density of phenolic hydroxyl groups,enabling the formation of hydrogen bonding,π-π interactions,and multidentate coordination at wet interfaces,thereby facilitating rapid water displacement and multipoint anchoring.Fe3+ions construct dynamic metal-ligand coordination networks,enhancing energy dissipation and interfacial adaptability,while HDI reacts with hydroxyl groups to generate stable covalent crosslinked structures through urethane and urea linkages.The resulting adhesive exhibits an underwater shear strength of up to 1.7 MPa on metallic substrates and maintains adhesion strengths exceeding 1.0 MPa after 30 days of long-term stability testing,as well as under high-salinity conditions(2.0 M NaCl)and across a wide pH range(1-13).Moreover,the system demonstrates good compatibility with various substrates.This study provides a new structural design strategy for the development of green,high-performance underwater adhesives.关键词
水下粘合剂/多酚-金属配位/异氰酸酯化学交联/全水相体系/界面湿润与锚固Key words
underwater adhesive/polyphenol-metal coordination/isocyanate chemical crosslinking/fully aqueous system/interfacial wetting and anchoring分类
化学化工引用本文复制引用
孔佳利,涂园园,严殊颜,吴继勇,王润楷,李娜,胡继文..天然多酚/Fe3+/HDI多重协同交联的全水相水下粘合剂[J].纤维素科学与技术,2026,34(1):31-38,8.
