| 球磨-酶解法制备纳米竹纤维的结构表征 |
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| 引用本文： | 费鹏,蔡杰,熊汉国.球磨-酶解法制备纳米竹纤维的结构表征[J].林业科技开发,2012,26(2):16-19. |
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| 作者姓名： | 费鹏 蔡杰 熊汉国 |
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| 作者单位： | 华中农业大学食品科技学院,华中农业大学农林生物基材料综合利用研究所,武汉430070 |
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| 基金项目： | 湖北省重点攻关项目(编号:206873A22);武汉市产业化项目(编号:201120722218) |
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| 摘 要： | 采用机械球磨对竹纤维进行预处理,再经纤维素酶水解制备纳米竹纤维。通过光学显微镜(OM)、透射电子显微镜(TEM)、傅立叶红外光谱仪(FTIR)和X射线衍射仪(XRD)对竹纤维的形貌、组成、光谱学性能以及晶体特性进行了表征。实验结果表明:球磨法和酶解法在一定程度上都可以细化竹纤维;球磨预处理有助于竹纤维的酶解过程,且球磨-酶解法制备的纳米竹纤维粒径在100 nm左右;所制备的纳米竹纤维仍然保持竹纤维的基本化学结构,但球磨处理破坏了纤维素的结晶结构,其结晶度由64.15%降低到了38.55%。
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| 关 键 词： | 球磨 酶解 纳米竹纤维 表征 |
Characterization of nano-bamboo cellulose by ball milling and enzyme hydrolysis preparation |
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| FEI Peng
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CAI Jie
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XIONG Han-guo.Characterization of nano-bamboo cellulose by ball milling and enzyme hydrolysis preparation[J].China Forestry Science and Technology,2012,26(2):16-19. |
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| Authors: | FEI Peng CAI Jie XIONG Han-guo |
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| Institution: | Research Institute of Comprehensive Utilization of Biomaterials,Central China Agricultural University,Wuhan 430070,China |
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| Abstract: | The article reported the characteristics of nano-bamboo cellulose from enzymolysis of bamboo fibers pretreated by ball-milling dispersion.The size and morphology,crystallinity and spectral properties of the prepared nano-bamboo cellulose were characterized by optical microscopy(OM),transmission electron microscopy(TEM),fourier transform infrared spectroscopy(FTIR) and X-ray diffraction(XRD).The results showed that both ball-milling and enzymolysis could thin bamboo fibers to some degree.The ball-milling pre-treatment contributed much to the enzymolysis of bamboo fibers.The diameter of nano-bamboo fiber was about 100 nm after mill-enzymatic preparation.Although the basic chemical structure and crystal form of cellulose of nano-bamboo fiber were kept,the crystallinity decreased from 64.15% to 38.55%. |
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| Keywords: | ball-milling dispersion enzyme hydrolysis nano-bamboo fiber characterization |
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