文献类型：期刊文献

英文题名：Sea-cucumber-inspired bio-based polyurethane with desirable stretchability, recyclability, and self-healing capabilities

作者：Hu, Yun[1] Sha, Ye[2] Fang, Yan[1,3] Zhang, Meng[1] Zhou, Yonghong[1] Jia, Puyou[1] Zhu, Tianyu[4]

第一作者：胡云

通信作者：Jia, PY[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, 16 Suojin North Rd, Nanjing 210042, Peoples R China;[2]Nanjing Forestry Univ, Coll Sci, Dept Chem & Mat Sci, Nanjing 210037, Peoples R China;[3]Nanjing Forestry Univ, Coll Chem Engn, Nanjing 210037, Peoples R China;[4]Clemson Univ, Dept Mat Sci & Engn, Clemson, SC 29634 USA

年份：2025

卷号：6

期号：5

外文期刊名：CELL REPORTS PHYSICAL SCIENCE

收录：;Scopus(收录号：2-s2.0-105004699831);WOS:【SCI-EXPANDED(收录号:WOS:001497599200008)】；

基金：This study was funded by the National Natural Science Foundation of China (nos. 32401528 and 32471815) and the Natural Science Foundation of Jiangsu Province of China (grant nos. BK20241745 and BK20240294) .

语种：英文

外文关键词：biomimetic strategies; disulfide bonds; hydrogen bonds; polyurethane

摘要：The widespread adoption of polyurethane (PU) materials in adhesives and ultraviolet (UV)-resistant applications is limited by the challenge of balancing stretchability, recyclability, and self-healing capabilities, which requires an advanced molecular structural design. Here, we synthesize a castor-oil-based PU (COPUSD) that integrates disulfide bonds and multiple hydrogen bonds, drawing inspiration from the remarkable self-healing capabilities and stretchability of sea cucumbers. This biomimetic approach facilitates the development of a multifunctional PU material with excellent self-healing properties, tunable stretchability, and recyclable processing characteristics. The resulting PUs are employed as adhesion and anti-UV radiation materials and exhibit excellent adhesion properties. The transmittance of the PU is close to 0% in the range of 200-400 nm, indicating a strong blocking ability against UV. This study presents a pioneering approach for developing versatile and scalable PU materials that combine adjustable self-healing capabilities and efficient recyclability for adhesive and UV-resistant applications.