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

通信作者：Kim, NH[1]

机构：[1]Kangwon Natl Univ, Coll Forest & Environm Sci, Chunchon 24341, South Korea;[2]Univ Lampung, Dept Forestry, Fac Agr, Jl Sumantri Brojonegoro 1, Bandar Lampung 35145, Indonesia;[3]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[4]Natl Inst Forest Sci, Dept Forest Prod, Seoul 02455, South Korea;[5]Bogor Agr Univ, Dept Forest Prod, Fac Forestry, 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：;WOS:【SCI-EXPANDED(收录号:WOS:000422879900048)】；

基金：This work was performed with the support of a research grant provided by the National Research Foundation of Korea (NRF-2016R1D1A1B01008339).

语种：英文

外文关键词：Clamping; Heat treatment; Korean white pine; Mechanical restraint; Physical-mechanical properties; Royal paulownia

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 degrees C, 180 degrees C, 200 degrees C, and 220 degrees 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 degrees C and 220 degrees 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.