文献类型：期刊文献

英文题名：Green, recyclable and high latent heat form-stable phase change composites supported by cellulose nanofibers for thermal energy management

作者：Pang, Yao[1,3] Sun, Jingmeng[1,3] Zhang, Weiye[1,3] Lai, Chenhuan[2] Liu, Yi[1,3] Guo, Hongwu[1,3] Zhang, Daihui[1,2,4]

第一作者：Pang, Yao

通信作者：Liu, Y[1];Guo, HW[1];Zhang, DH[1];Zhang, DH[2]

机构：[1]Beijing Forestry Univ, Minist Educ, Key Lab Wood Mat Sci & Applicat, Beijing 100083, Peoples R China;[2]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing 210037, Jiangsu, Peoples R China;[3]Beijing Forestry Univ, Beijing Key Lab Wood Sci & Engn, Beijing 100083, Peoples R China;[4]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China

年份：2024

卷号：264

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20241015707886);Scopus(收录号：2-s2.0-85186763576);WOS:【SCI-EXPANDED(收录号:WOS:001202200300001)】；

基金：This work was supported by the National Natural Science Foundation of China (grant number 32371793) .

语种：英文

外文关键词：Cellulose nanofibers; Phase change materials; Thermal energy storage; Nanohybrid

摘要：Efficiently addressing the challenge of leakage is crucial in the advancement of solid-liquid phase change thermal storage composite materials; however, numerous existing preparation methods often entail complexity and high energy consumption. Herein, a straightforward blending approach was adopted to fabricate stable phase change nanocomposites capitalizing on the interaction between TEMPO-oxidized cellulose nanofibers (TOCNF) and polyethylene glycol (PEG) molecules. By adjusting the ratio of TOCNF to PEG and the molecular weights of PEG, TOCNF/PEG phase change composites (TPCC) with customizable phase transition temperature (40.3-59.1degree celsius) and high phase transition latent heat (126.3-172.1 J/g) were obtained. The TPCC of high-loaded PEG (80-95 wt %) ensured a leakage rate of less than 1.7 wt% after 100 heating-cooling cycles. Moreover, TPCC exhibits excellent optical properties with a transmittance of over 90 % at room temperature and up to 96 % after heating. The thermal response analysis of TPCC demonstrates exceptional thermal-induced flexibility and good thermal stability, as well as recyclability and reshaping ability. This study may inspire others to design bio-based phase change composites with potential applications in thermal energy storage and management of smart-energy buildings, photothermal response devices, and waste heat-generating electronics.