文献类型：期刊文献

英文题名：Boron nitride-nanosheet enhanced cellulose nanofiber aerogel with excellent thermal management properties

作者：Liu, Ya[1] Zhang, Yipeng[1] Liao, Tougen[1] Gao, Li[1] Wang, Meng[1] Xu, Xu[2] Yang, Xinxin[3] Liu, He[3]

第一作者：Liu, Ya

通信作者：Wang, M[1];Liu, H[2]

机构：[1]China Tobacco Yunnan Ind Co Ltd, R&D, Kunming 650231, Yunnan, Peoples R China;[2]Nanjing Forestry Univ, Coll Chem Engn, Adv Anal & Testing Ctr, Jiangsu Prov Key Lab Chem & Utilizat Agroforest B, Nanjing 210037, Jiangsu, Peoples R China;[3]Chinese Acad Forestry, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Inst Chem Ind Forestry Prod,Natl Engn Lab Biomass, Key Lab Biomass Energy & Mat,Key Lab Chem Engn Fo, Nanjing 210042, Jiangsu, Peoples R China

年份：2020

卷号：241

外文期刊名：CARBOHYDRATE POLYMERS

收录：;EI(收录号：20202008658890);Scopus(收录号：2-s2.0-85084484421);WOS:【SCI-EXPANDED(收录号:WOS:000539100600008)】；

基金：This paper was supported by Key project of China National Tobacco Corporation [grant number 110201802001], and Project of Science & Technology Department of Yunnan Province [2017FD237].

语种：英文

外文关键词：Cellulose nanofibers; Boron nitride nanosheets; Thermal conductivity; Aerogel

摘要：Boron nitride nanosheets (BNNSs) are desirable materials for thermal management applications owing to their excellent thermal conductivity. Such property also related to the increased thermal transfer efficiency per unit mass, which can be improved by constructing three-dimensional (3D) structures. Cellulose nanofibers (CNFs) are often used to prepare 3D skeletons and stabilize the dispersion of inorganic fillers. Therefore, CNF/BNNS aerogels were prepared to disperse BNNS in a 3D network. CNF/BNNS aerogel exhibited a thermal conductivity of 0.57 W m(-1) K-1, which is an enhancement of 443 % compared to 0.105 W m(-1) K-1 of CNF aerogel. The surface temperature changes of the aerogels were confirmed a strong thermal management capacity. The BNNSs also resulted in the compressive strength increased from 0.25 MPa (CNF aerogel) to 0.37 MPa (CNF/BNNS aerogel). This study provides an effective strategy for the preparation of cellulose-based nanocomposite aerogels with excellent thermal management properties and mechanical properties.