| 纳米纤维素晶体的制备及表征 |
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| 引用本文： | 唐丽荣,黄彪,戴达松,欧文,李玉华,陈学榕.纳米纤维素晶体的制备及表征[J].林业科学,2011,47(9). |
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| 作者姓名： | 唐丽荣 黄彪 戴达松 欧文 李玉华 陈学榕 |
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| 作者单位： | 1. 福建农林大学金山学院,福州,350002;福建农林大学材料工程学院,福州,350002
2. 福建农林大学材料工程学院,福州,350002 |
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| 基金项目： | 国家自然科学基金(30972312;31170520); 福建省自然科学基金(2010J01270) |
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| 摘 要： | 采用超声波辅助硫酸水解、高速离心取其上清层水溶胶的方法由微晶纤维素(MCC)制备纳米纤维素晶体(NCC),并采用场发射透射电子显微镜(FETEM)、场发射环境扫描电子显微镜(FEGE-SEM)、X射线衍射仪(XRD)和傅里叶变换红外光谱仪(FTIR)对所制备NCC的尺寸与形态、结构、组成和光谱性质进行分析。结果表明:FETEM和FEGE-SEM观察所制备纳米纤维素晶体形态相同,呈棒状,直径和长度主要分布在2～24nm和50～450nm;XRD图谱表明NCC仍属于纤维素Ⅰ型,结晶度为77.29%,晶粒尺寸为3～6nm;FTIR分析表明所制备的纳米纤维素晶体仍然具有纤维素的基本化学结构。
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| 关 键 词： | 纳米纤维素晶体 微晶纤维素 酸水解 高速离心 上清层水溶胶 |
Preparation and Characterization of Nanocrystal Cellulose |
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| Tang Liron,Huang Biao,Dai Dasong,Ou Wen,Li Yuhua,Chen Xuerong.Preparation and Characterization of Nanocrystal Cellulose[J].Scientia Silvae Sinicae,2011,47(9). |
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| Authors: | Tang Liron Huang Biao Dai Dasong Ou Wen Li Yuhua Chen Xuerong |
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| Institution: | Tang Lirong1,2 Huang Biao2 Dai Dasong2 Ou Wen2 Li Yuhua2 Chen Xuerong2(1.Jinshan College of Fujian Agriculture and Forestry University Fuzhou 350002,2.College of Material Engineering,Fujian Agriculture and Forestry University Fuzhou 350002) |
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| Abstract: | Nanocrystal cellulose(NCC) was prepared from microcrystalline cellulose(MCC) by sulfuric acid hydrolysis assisted with ultrasound,in addition the NCC was obtained from supernatant hydrosol of high-speed centrifugation.Furthermore,the size and morphology,crystal structure and spectral properties of NCC were investigated and analyzed with field emission transmission electron microscopy(FETEM),field emission gun environment scanning electron microscopes(FEGE-SEM),X ray diffraction(XRD) and Fourier transformati... |
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| Keywords: | nanocrystal cellulose microcrystalline cellulose acid hydrolysis high-speed centrifugation supernatant hydrosol |
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