文献类型：期刊文献

英文题名：Structure, Mechanical Performance, and Dimensional Stability of Radiata Pine (Pinus radiata D. Don) Scrimbers

作者：Wei, Jinguang[1] Rao, Fei[1] Huang, Yuxiang[1] Zhang, Yahui[1] Qi, Yue[1] Yu, Wenji[1] Hse, Chung-Yun[2]

第一作者：Wei, Jinguang

通信作者：Yu, WJ[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Scrimber Engn & Technol Res Ctr, State Forestry Adm, Beijing 100091, Peoples R China;[2]US Forest Serv, Southern Res Stn, USDA, Pineville, LA 71360 USA

年份：2019

卷号：2019

外文期刊名：ADVANCES IN POLYMER TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000476712800001)】；

基金：This work was funded by the Special Funds for Basic Research and Operating Expenses of Central Level Public Welfare Scientific Research Institutes (CAFYBB2018SY031), Major Science and Technology Program of Hunan Province (No. 2017NK1010), and China Scholarship Council.

语种：英文

外文关键词：Dimensional stability - Forestry - Mechanical properties - Porosity

摘要：Natural wood has certain advantages such as good processability and high specific strength and thus has been used for millennium as a structural material. But the mechanical performance and water resistance, particularly for fast-growing species, are unsatisfactory for high-end applications. In this study, the new-type scrimber technology was introduced to radiata pine (Pinus radiata D. Don) scrimbers. The structure, mechanical properties, and dimensional stability of the scrimber panels were investigated. Results showed that OWFMs as basic units of scrimber had been very even in size and superior permeability. The scrimbers exhibited a three-dimensional porous structure, and the porosity had a decrease with increasing density. Both OWFMs and densification contributed to the high performance in terms of mechanical properties and water resistance. The flexural, compressive, and short-beam shearing strength were significantly enhanced with increasing density. As the density was 0.80g cm(-3), the flexural strength (MOR) was approximately 120MPa, much larger than many selected wood-based panels. Moreover, the water resistance and dimensional stability also were closely related to the density. At the density of 1.39g cm(-3), the water absorption rate and thinness swelling rate of the panels in boiled water were only 19% and 5.7%, respectively.