Microstructure of Eucalyptus Pellita under Different Thermal Treatment Temperatures and its Effect on Physical-Mechanical Characteristic

摘要：

Taken the eucalyptus pellita treated for example, this article introduced the microstructure of wood without heat-treatment and microstructure-change under different temperatures (80℃, 120℃, 160℃, 200℃, 240℃, 280℃), analyzed the affect of the thermal treatment on woods physical-mechanical characteristic from microstructure. The result shows that: 1) pit membrane on the vessel tended to be broken or deciduous; 2) as the temperature ascending, fiber appears wizened and some grows rose, cell cavity trails off, severing of fiber could be saw on the transverse section, and brittle fracture on the radial cut; 3) weight reduced as temperature went up, while bending strength and modulus of elasticity descending after ascending, vertex appears when the temperature was 120℃, resistance was seriously lost at 280℃.

关键词： Eucalyptus pellita vacuum thermal treatment physical-mechanical characteristic microstructure effect

作者: WANG Xuehua LIU Junliang XU Guoqi CHAI Yubo

作者单位: Research Institute of Wood Industry,Chinese Academy of Forestry,Dongxiaofu,Xiangshan Road.Haidian District,Beijing,China

会议类型: 国际会议

会议名称: the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)

会议地点: 三亚

会议语种:英文

页码: 544-548

在线出版日期: 2011-03-25（万方平台首次上网日期，不代表论文的发表时间）