文献类型：期刊文献

英文题名：Construction of wood coatings based on nanocellulose photocurable composites and their enhancement mechanisms

作者：Wang, Qi[1,2,3] Yang, Zhaozhe[2,4] Liu, Xinyou[1] Feng, Xinhao[1,5]

第一作者：Wang, Qi

通信作者：Feng, XH[1]

机构：[1]Nanjing Forestry Univ, Coll Furnishings & Ind Design, Nanjing 210037, Peoples R China;[2]Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[3]Sichuan Univ, Polymer Res Inst, Natl Key Lab Adv Polymer Mat, Chengdu 610065, Peoples R China;[4]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[5]Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing 210037, Peoples R China

年份：2026

卷号：211

外文期刊名：PROGRESS IN ORGANIC COATINGS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001622350200001)】；

基金：This work was financially supported by grants from the Fundamental Research Funds of Key Laboratory of Biomass Energy and Material of Jiangsu Province (Grant No. JSBEM-S-202212) , National Key Research and Development Program of China (2023YFD2201500) , Natural Sci-ence Foundation of Jiangsu Province (BK20200779) , Youth Science and Technology Innovation Fund of Nanjing Forestry University (CX2019015) , the Natural Science Research Project of Jiangsu Colleges and Universities (19KJB220004) .

语种：英文

外文关键词：Cellulose nanocrystals; Photocurable composites; Wood coating; Enhancement mechanisms

摘要：Natural wood's flammability and hygroscopicity limit its applications, while conventional UV-curable coatings suffer from poor wood adhesion due to interfacial stress, volume shrinkage, and reliance on weak mechanical interlocking. To address this, we developed a high-performance photocurable nanocomposite coating based on cellulose nanocrystals (CNC) modified via atom transfer radical polymerization (ATRP). The modified CNC acts as an interfacial molecular bridge, enhancing polymer compatibility through a hydrogen-bond network and enabling radical-initiated chemical bonding with the wood surface. This dual mechanism significantly reduces internal stress and strengthens the interface. Compared to pure resin coatings, the nanocomposite exhibited a hardness increase of up to 33.99 % (reaching 79 Shore D) and adhesion strength of 11.38 MPa-nearly double that of the control. It also showed a 43.6 % reduction in wear loss, along with superior UV stability and corrosion resistance. This work demonstrates a sustainable strategy for fabricating high-adhesion, multifunctional wood coatings via interfacial nanocellulose reinforcement.