文献类型：期刊文献

英文题名：A cellulose nanocrystals/tung oil-based multifunctional polymer with good mechanical properties, thermal stability, adhesive, self-healing, and recyclable properties

作者：Fan, Xu[1,2] Lin, Xiangyu[1] Shang, Hongyi[1] Guo, Lizhen[1] Xu, Xu[2] Liu, He[1] Dong, Fuhao[1]

第一作者：Fan, Xu

通信作者：Dong, FH[1]

机构：[1]State Forestry Adm, Inst Chem Ind Forestry Prod, Chinese Acad Forestry, Natl Engn Lab Biomass Chem Utilizat,Key Lab Biomas, Nanjing 210042, Jiangsu, Peoples R China;[2]Nanjing Forestry Univ, Coll Chem Engn, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Jiangsu Prov Key Lab Chem & Utilizat Agroforest Bi, Nanjing 210037, Jiangsu, Peoples R China

年份：2023

卷号：197

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20231313816853);Scopus(收录号：2-s2.0-85151036352);WOS:【SCI-EXPANDED(收录号:WOS:000973051000001)】；

基金：This work was supported by Projects from the National Natural Science Foundation of China (32171722) and the National Natural Science Foundation of China (32071708) . Top-notch Academic Programs Project of Jiangsu Higher Education Institutions (ATPP) , the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) , and International Innovation Center for Forest Chemicals and Materials.

语种：英文

外文关键词：Bio-based polymers; Self-healing properties; Mechanical properties; Recyclability; Adhesion

摘要：The vigorous development of dynamic covalent chemistry has inspired the study of dynamic covalent disulfide bond materials. However, the low bond energy of the disulfide bond leads to weak mechanical properties of polymers. Developing polymers with both self-healing and good mechanical properties is still a huge challenge. Herein, a novel fully bio-based multifunctional polymer (TCNC/TO) was designed by thioctic acid (TA), tung oil (TO), and cellulose nanocrystals (CNC). Tung oil (TO) was used as a cross-linking agent and free radical quenching agent. CNC was reacted with thioctic acid (TCNCs) as a reinforcing agent to enhance mechanical properties of TCNC/TO. The fully bio-based TCNC/TO exhibits promising self-healing ability (95% healing ef-ficiency) and good mechanical properties (250% increase in tensile strength compared with polymers without CNC). Even after 10 cyclic tensile tests, the mechanical properties of TCNC/TO are not damaged. Furthermore, TCNC/TO possesses outstanding recyclability (still shows certain mechanical properties after repeated recycling) and adhesion (high adhesive strength towards various substrates). These impressive performances make TCNC/ TO a candidate in the field of self-healing materials and adhesives.