Surface modification of cellulose fibre during steam injection process
In this study the surface modification of cellulose fibre prepared from moulded biodegradable cellulose/MPU-20 composites during steam injection process was studied by AFM, EMPA (EDS) and Py-GC-MS analysis. The results indicated that after steam injection treatments the surface of cellulose fibres became rougher due to the removal of part semi-cellulose and hydrophobicite. The increase of O/C value from 1.01 to 1.94 demonstrated that more hydrophlicities (i.e., cellulose and semi-cellulose) increases by steam injection treatments, however, the hydrophobicites (i.e., lignin) on the surface of cellulose fibre decreases. The pyrolysis gas of the cellulose fibres by Py-GC MS analysis suggested that more glucofuranose compounds with low molecular weight are also determined after steam injection treatments. Low-molecular-weight compounds with cyclic structure from pyrolysis gas suggested that N atom from MPU-20 resin is bonded with the -OH, COOH, -CO-groups from cellulose fibres during steam injection process.
LIU Detao HAN Wenjia MO Lihuan LI Jun
Guangdong Public Laboratory of Paper Technology and Equipment, South China University of Technology, Guangdong Public Laboratory of Paper Technology and Equipment, South China University of Technology, Guangdong Public Laboratory of Paper Technology and Equipment, South China University of Technology,
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
65-67
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）