文献类型：期刊文献

英文题名：Delignified wood/polyethylene glycol-based material with BN as thermal conductive filler for thermal energy storage

作者：Li, Yanchen[1,2,3,4] Zhao, Junqi[1,3,4] Fang, Xiaoyang[1,3,4] Sun, Jingmeng[1,3,4] Chen, Shumin[5] Zhang, Weiye[1,3,4] Wang, Beibei[1,3,4] Zhang, Daihui[6] Liu, Yi[1,3,4] Guo, Hongwu[1,3,4]

第一作者：Li, Yanchen

通信作者：Liu, Y[1];Guo, HW[1]

机构：[1]Beijing Forestry Univ, Key Lab Wood Mat Sci & Applicat, Minist Educ, Beijing 100083, Peoples R China;[2]Tsinghua Univ, Future Lab, Beijing 100084, Peoples R China;[3]Beijing Forestry Univ, Natl Forestry & Grassland Engn Technol Ctr Wood Re, Beijing 100083, Peoples R China;[4]Beijing Forestry Univ, Beijing Key Lab Wood Sci & Engn, Beijing 100083, Peoples R China;[5]Jingchu Univ Technol, Sch Math & Phys, Jingmen 448000, Hubei, Peoples R China;[6]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China

年份：2023

卷号：68

外文期刊名：JOURNAL OF ENERGY STORAGE

收录：;EI(收录号：20232314198280);Scopus(收录号：2-s2.0-85161039833);WOS:【SCI-EXPANDED(收录号:WOS:001013069700001)】；

基金：This research was funded by the National Key Research and Development Program of China (2017YFD0601104), the Project for Cultivating Excellent Doctoral Dissertation of Forestry Engineering (LYGCYB202010, Northeast Forestry University), the Fundamental Research Funds for the Central Universities (2018ZY12).

语种：英文

外文关键词：Wood composites; Thermal energy storage; Photothermic; Biocomposite

摘要：In this work, phase change energy storage wood (KBN-PCES@Balsa) was obtained by injecting PGMA into the porous tissue of wood by high temperature and high pressure method, and the BN grafted with KH550 and DA (KH550-DA-BN) was synthesized to improve the heat transfer rate. Studies have found that PGMA has good thermal conductivity in the cavities of woody cells. After adding KH550-DA-BN to PGMA, the KH550-DA-BN combines with PGMA in a physically dispersed manner and the crystal structure of PGMA does not change. When the filling amount of KH550-DA-BN is 6 wt%, the thermal conductivity of KBN-PCES@Balsa increases to 0.4185 W/(m.K), its melting enthalpy and solidification enthalpy are all maintained at 103.40 J/g and 100.20 J/g, respectively. The KBN-PCES@Balsa shows efficient solar-to-thermal energy conversion and a lasting heat storage capacity under simulated sunlight. After 200 cycles of cooling and heating, the melting enthalpy and solidification enthalpy of KBN-PCES@Balsa are both above 120 J/g, indicating that KBN-PCES@Balsa has good stability in use. There is no leakage of 6 % KBN-PCES@Balsa after heated at 80 degrees C for 4 h, due to the interpenetrating network structure between PGMA and wood components. The phase change heat storage wood prepared in this research increases the potential of wood for temperature regulation in fields such as building materials, furniture and aerospace.