期刊
CELLULOSE
卷 19, 期 4, 页码 1189-1198出版社
SPRINGER
DOI: 10.1007/s10570-012-9730-4
关键词
Microcrystalline cellulose; Spherical nanocrystalline cellulose; Waste cotton fabrics; Acid hydrolysis; Morphology; Structure
资金
- National Science Foundation of China [51073108, 50903053]
- National High Technology Research and Development Program (863 Program) [SS2012AA062613]
Microcrystalline cellulose (MCC) and spherical nanocrystalline cellulose (SNCC) were successfully prepared from waste cotton fabrics through acid hydrolysis. The comparative analysis of the morphology and structure between the obtained MCC and SNCC was carried out. The SNCC suspension exhibited higher stability than the MCC suspension. Transmission electron microscopy in combination with atomic force microscopy showed that the cellulose nanospheres with average size of 35 nm were achieved, while the average particle size of MCC was 49 mu m. The MCC and SNCC had similar functional groups and crystalline structure as confirmed by Fourier transform infrared spectroscopy and X-ray diffraction analysis, respectively. Viscometric average molecular weight measurement and thermo gravimetric analysis indicated that the degree of polymerization and thermal stability of SNCC was lower than that of MCC. These results should improve understanding of the characteristics of MCC and SNCC derived from waste cotton fabrics and lead to many new applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据