AFM和XPS分析竹沥液对竹子半纤维素返黄的影响  

Effect of succus bambusae on bamboo hemicellulose yellowing analyzed by AFM and XPS

作　　者：骆莲新[1] 范磊乐[1] 王鑫宇[1] 李盼盼[1] 王双飞[1] 

机构地区：[1]广西大学轻工与食品工程学院,广西南宁530004

出　　处：《化工学报》2010年第10期2673-2678,共6页CIESC Journal

基　　金：高等学校博士学科点专项科研基金项目(20070593005)~~

摘　　要：The effect of succus bambusae on bamboo hemicellulose yellowing was studied.Their surface morphology and chemical composition were characterized by AFM (atomic force microscope)and XPS (or ESCA,electron spectroscopy for chemical analysis),which can provide the basis for obtaining high-yield of bamboo pulp yellowing.The results showed that the color of hemicellulose separated from raw material changed from white to light brown after adding succus bambusae into it,due to the adsorption of succus bambusae on the hemicellulose surface as indicated by SEM and AFM,and that the structure of succus bambusae on the surface hemicellulose could be varied by UV-light irradiation as demonstrated by XPS.So,the deposition of succus bambusae materials on the hemicellulose surface can decrease whiteness of bamboo pulp,while photo-aging can extend hemicellulose yellowing of bamboo pulp.The effect of succus bambusae on bamboo hemicellulose yellowing was studied.Their surface morphology and chemical composition were characterized by AFM （atomic force microscope）and XPS （or ESCA,electron spectroscopy for chemical analysis）,which can provide the basis for obtaining high-yield of bamboo pulp yellowing.The results showed that the color of hemicellulose separated from raw material changed from white to light brown after adding succus bambusae into it,due to the adsorption of succus bambusae on the hemicellulose surface as indicated by SEM and AFM,and that the structure of succus bambusae on the surface hemicellulose could be varied by UV-light irradiation as demonstrated by XPS.So,the deposition of succus bambusae materials on the hemicellulose surface can decrease whiteness of bamboo pulp,while photo-aging can extend hemicellulose yellowing of bamboo pulp.

关 键 词：竹沥液 半纤维 返黄 AFM XPS 

分 类 号：TS749[轻工技术与工程—制浆造纸工程]