文献类型：期刊文献

英文题名：Effect of Mechanical Restraint on the Properties of Heat-treated Pinus koraiensis and Paulownia tomentosa Woods

作者：Hidayat, Wahyu[1,2] Qi, Yue[1,3] Jang, Jae Hyuk[1,4] Febrianto, Fauzi[5] Kim, Nam Hun[1]

第一作者：Hidayat, Wahyu

机构：[1] College of Forest and Environmental Sciences, Kangwon National University, Chuncheon, 24341, Korea, Republic of; [2] Department of Forestry, Faculty of Agriculture, University of Lampung, Jl. Sumantri Brojonegoro 1, Bandar Lampung, 35145, Indonesia; [3] Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, 100091, China; [4] Department of Forest Products, National Institute of Forest Science, Seoul, 02455, Korea, Republic of; [5] Department of Forest Products, Faculty of Forestry, Bogor Agricultural University, Gd. Fahutan Kampus IPB Dramaga, Bogor, 16680, Indonesia

年份：2017

卷号：12

期号：4

起止页码：7539-7551

外文期刊名：BioResources

收录：EI(收录号：20173604136592);Scopus(收录号：2-s2.0-85028774989)

语种：英文

外文关键词：Moisture - Moisture determination - Shrinkage - Wood

摘要：The objective of this study was to improve the properties of Korean white pine (Pinus koraiensis Sieb.&Zucc.) and royal paulownia (Paulownia tomentosa (Thunb.) Siebold & Zucc. ex Steud.) via heat treatment. The woods were treated at 160 °C, 180 °C, 200 °C, and 220 °C for 2 h. The effect of mechanical restraint through clamping during heat treatment on the dimensional stability, physical, and mechanical properties was evaluated. The results showed that increased temperature increased the weight loss and volume shrinkage, while equilibrium moisture content and wettability decreased. Royal paulownia showed higher weight loss, but lower shrinkage and equilibrium moisture content, when compared to Korean white pine. The samples with clamps in both woods had lower weight loss and volume shrinkage after heat treatment. The modulus of elasticity and modulus of rupture decreased with increased temperature followed by a noticeable decrease obtained after heat treatment at 200 °C and 220 °C. Clamping minimized strength reduction in both woods. Consequently, it was suggested that mechanical restraint was a useful method to maintain the wood properties during heat treatment. ? 2017. BioResources. All rights reserved.