基于同步辐射X射线相衬显微CT技术的竹木复合材料胶合界面特征研究  

Investigation of Characteristic Microstructures of Adhesive Interface in Wood/Bamboo Composite Material by Synchrotron Radiation X-Ray Phase Contrast Microscopy

作　　者：彭冠云[1] 王玉荣[2] 任海青[2] 杨淑敏 马红霞[4] 谢红兰[1] 邓彪[1] 杜国浩[1] 肖体乔[1] 

机构地区：[1]中国科学院上海应用物理研究所,上海201204 [2]中国林业科学研究院木材工业研究所北京100091 [3]国际竹藤中心,北京100102 [4]广东省林业科学研究院,广东广州510520

出　　处：《光谱学与光谱分析》2013年第3期829-833,共5页Spectroscopy and Spectral Analysis

基　　金：国家林业公益性行业科研专项(201304513);国家“十一五”科技支撑计划课题项目(2008BADA9B03);国际竹藤中心基本科研业务费专项项目(1632010002);中央级公益性科研院所专项基金项目(CAFINT 2010C03);国家重点基础研究发展计划项目(Y014021061)资助

摘　　要：第三代同步辐射光源X射线相位衬度显微CT能获得样品内部结构的边缘增强图像,实现对低Z材料成像。利用上海同步辐射光源X射线相衬显微成像技术,实现了竹木复合材料中EPI和MUF胶合界面和胶黏剂渗透特征的无损探测,并基于这些特征分析了几种不同加工工艺对胶黏剂在木材和竹材中渗透的影响。该技术为人造板工艺解剖学研究提供了一种重要无损检测手段。Third-generation synchrotron radiation X-ray phase-contrast microscopy（XPCM）can be used for obtaining image with edge enhancement,and achieve the high contrast imaging of low-Z materials with the spatial coherence peculiarity of X-rays.In the present paper,the characteristic microstructures of adhesive at the interface and their penetration in wood/bamboo composite material were investigated systematically by XPCM at Shanghai Synchrotron Radiation Facility（SSRF）.And the effect of several processing techniques was analyzed for the adhesive penetration in wood/bamboo materials.The results show that the synchrotron radiation XPCM is expected to be one of the important precision detection methods for wood-based panels.

关 键 词：同步辐射 相位衬度 竹木复合材料 胶黏剂 

分 类 号：S781.2[农业科学—木材科学与技术]