期刊
CHEMSUSCHEM
卷 7, 期 12, 页码 3513-3520出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402314
关键词
biomass; composites; lignin; nanoparticles; thermal stability
资金
- USDA Forest Service RD
A new method to prepare nanolignin using a simple high shear homogenizer is presented. The kraft lignin particles with a broad distribution ranging from large micron-to nano-sized particles were completely homogenized to nanolignin particles with sizes less than 100 nm after 4 h of mechanical shearing. The C-13 nuclear magnetic resonance (NMR) and P-31 NMR analysis showed that there were no major changes in the chemical composition between the starting kraft lignin particles and the nanolignin obtained after 4 h of mechanical treatment. The nanolignin particles did not show any change in molecular weight distribution and polydispersity compared to the original lignin particles. The nanolignin particles when used with polyvinyl alcohol (PVA) increased the thermal stability of nanolignin/PVA blends more effectively compared to the original lignin/PVA blends.
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