杉木—纳米ZnO复合材料结构表征与分析  

Structure characterization and analysis of Chinese fir/Nano-ZnO composite materials

作　　者：袁光明[1] 宫飞飞[1] 刘天柱 张南南[1] 

机构地区：[1]中南林业科技大学材料科学与工程学院,湖南长沙410004 [2]通道县林业局,湖南通道418500

出　　处：《中南林业科技大学学报》2011年第7期20-23,共4页Journal of Central South University of Forestry & Technology

基　　金：国家自然科学基金项目(30972305);国家自然科学基金项目(30671634);国家林业公益性行业科研专项项目(200704020)

摘　　要：通过激光粒度仪、SEM、TEM表征纳米ZnO粒子形貌,并结合XRD、能量弥散X射线谱(EDXA)和傅立叶变换红外光谱等分析杉木—纳米ZnO复合材料的结构。结果表明:纳米ZnO粒子呈絮状分布于杉木木材细胞壁、纹孔口边缘等处;能与木材组分大分子链上的羟基、乙酰基及羧基等活性基团形成结合;另有部分以物理方式充填于木材的纳米空间,如其微纤丝非结晶区等处;纳米ZnO粒子与木材组分两相间界面完全或部分消失,可使该复合材料性能显著提高。The shape and situation of nano-ZnO particles is characterized by laser-sizing instrument, SEM and TEM etc; and the structure of the Chinese fir/nano-ZnO composite is characterized and analyzed along with XRD and EDXA （XPS spectrum） , FTIR and/or other spectroscopy etc. The results show that nano-ZnO particles locate on the cellwalls of the wood and the edges of pits, and can be easily combined firmly with hydroxide radicel, diacetyl and carboxyl etc. in the wood, by the un-saturation groups on the surface of nano-ZnO particles. Some other nano-ZnO particles are located at the nano-space inside the wood, such as located between micro-fibrils. The interfaces disappear for the wholly or partly so as to improve the properties of the the Chinese fir/nano-ZnO composite.

关 键 词：杉木-纳米ZnO复合材料 结构表征 结构分析 

分 类 号：TB332[一般工业技术—材料科学与工程]