Homogeneous isolation of nanocellulose from eucalyptus pulp by high pressure homogenization
文献类型： 外文期刊
作者： Wang, Yihong 1 ; Wei, Xiaoyi 1 ; Li, Jihua 1 ; Wang, Fei 1 ; Wang, Qinghuang 1 ; Zhang, Yongdan 4 ; Kong, Lingxue 5 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Zhanjiang 524001, Guangdong, Peoples R China
2.Natl Ctr Important Trop Crops Engn & Technol Res, Haikou 571101, Peoples R China
3.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
4.Wuhan Hvsen Biol Technol Co Ltd, Wuhan 430042, Peoples R China
5.Deakin Univ, Inst Frontier Mat, Waurn Ponds, Vic 3216, Australia
关键词： Eucalyptus pulp;High pressure homogenization;Homogeneous isolation;Nanocellulose;Feasibility
期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：5.645； 五年影响因子：5.749 ）
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收录情况： SCI
摘要： Nanocellulose from eucalyptus (Eucalyptus robusta Smith) pulp was extracted by simply disrupting the hydrogen bond network of celluloses with high pressure homogenization (HPH). It was found that nanocellulose was 20-100 nm in diameter, and presented a narrower molecular weight distribution, lower thermal stability and crystallinity index. Fourier transform infrared (FT-IR) and solid state cross polarization magic angle spinning carbon-13 nuclear magnetic resonance (CP/MAS C-13 NMR) were used to confirm the physicochemical properties of nanocellulose, suggesting that intra-molecular hydrogen bonds are entirely maintained. Meanwhile, the feasibility of high pressure homogenization for different cellulosic biomass materials was investigated using comparison of eucalyptus pulp nanocellulose, sugarcane (Saccharzun officinarum) bagasse nanocellulose and cotton (Gossypium spp) nanocellulose. Results showed that eucalyptus pulp chains could be interrupted easily by the shearing forces for its harder texture, which was suited for high pressure homogenization. Other kinds of cellulose could also be well suited through controlling key parameters such as mechanical forces and treatment temperature in the process.
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