文献类型：会议论文

英文题名：Effects of Thermal Treatment on Surface Color, Dimensional Stability and Mechanical Properties of Bamboo-based Fiber Composites

作者：Zhang, Yamei[1] Yu, Wenji[1]

第一作者：张亚梅

通信作者：Yu, WJ[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China

会议论文集：International Conference on Biobase Material Science and Engineering

会议日期：OCT 21-23, 2012

会议地点：Changsha, PEOPLES R CHINA

语种：英文

外文关键词：Bamboo-based fiber composites; chemical compositions; surface color; dimensional stability; mechanical properties

年份：2012

摘要：Bamboo fibrous veneers were fabricated using a new technology and heat-treated in a vacuum by steaming at pressure of 0.40 MPa (151 degrees C) for 170 min. Bamboo-based fiber composites (BFC) were made from bamboo fibrous veneers that were before and after thermal-treated using a compression molding method. The results pointed out that, chemical degradation occurred in bamboo fibrous veneers, mainly in relation to hemicelluloses, and its reduction reached 59.15%. The pH value decreased significantly, whereas acid buffering capacity increased compared with control samples. The color of thermal-treated BFC was darkened; dimensional stability was significantly improved by reducing thickness swelling and wideness swelling. The mechanical properties were affected with reduction in Modulus of Rupture (MOR) and Horizontal Shear strength (HS), but Modulus of Elasticity (MOE) was affected slightly. Thus it is shown that the surface color and dimensional stability of BFC can be changed and improved by thermal treatment.