文献类型：期刊文献

英文题名：Facile strategy for preparing puffed wood-based metal composites with low density and enhanced thermal conduction via high-intensity microwave puffing pretreatment

作者：Tao, Xin[1] Tian, Dongxue[1] Liang, Shanqing[1,2] Zhang, Yu[1] Li, Shanming[1,2] Fu, Feng[1,2]

第一作者：Tao, Xin

通信作者：Liang, S.[1,2]

机构：[1] Research Institute of Wood Industry, Chinese Academy of Forestry, Xiangshan Road, Haidian District, Beijing, 100091, China; [2] Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, China

年份：2023

卷号：194

外文期刊名：Industrial Crops and Products

收录：EI(收录号：20230613570825);Scopus(收录号：2-s2.0-85147542287)

基金：This work was financially supported by the National Key Research and Development Program of China (No. 2022YFD2200703 ) and the National Natural Science Foundation of China (No. 32071705 ).

语种：英文

外文关键词：Cracks - Energy utilization - Melting point - Wood

摘要：Metallic wood has recently attracted an increasing attention for its excellent mechanical, electrical, and thermal properties. However, existing metallic wood materials are limited in terms of practical application due to their excessive density, rising production costs, and significant energy consumption. In this study, puffed cracks were created as new filling space for low melting point alloy (LMA) material via high-intensity microwave puffing pretreatment. The prepared metallic wood, a puffed wood-based metal composite (PWMC), shows a relatively low density of 1.84 g/cm3 and maximum thermal conductivity of 0.313 W/(m K), representing a 335 % increase compared to puffed wood (PW). LMA appears to have filled in the puffed cracks to form multiple continuous, mutually parallel thermo-conductive strips. The weight percentage gain (WPG) of PWMC was 233 % when the puffed crack area percentage was 16 %. The enhancement of surface average temperature was 31.7 % at a heating temperature of 70 °C. The lightweight, decorative, and thermal conductive PWMC may have a wide array of household applications. ? 2023 Elsevier B.V.