| 黄原胶分子形貌的原子力显微镜研究 |
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| 引用本文： | 李艳青,智丽丽,陈惠敏. 黄原胶分子形貌的原子力显微镜研究[J]. 伊犁师范学院学报(自然科学版), 2011, 0(1) |
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| 作者姓名： | 李艳青 智丽丽 陈惠敏 |
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| 作者单位： | 昌吉学院,物理系,新疆,昌吉,831100 |
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| 基金项目： | 昌吉学院院级课题(2010SSQD021;2010SSQD020) |
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| 摘 要： | 通过溶胶凝胶的方法制备了黄原胶水溶液,并采用轻敲模式原子力显微镜(AFM)对不同浓度的黄原胶分子溶液的表面微观结构形态进行了观察.实验结果表明,轻敲模式下的AFM能够观测到黄原胶分子的微观结构,浓度为0.1g/L时分子类似于球状体的颗粒,以多聚体形式存在.浓度达到0.01g/L时能够形成稳定的网状结构,当浓度达到0.001g/L的情况下形成单个纤维分子.利用AFM截面软件对网状结构和单个纤维进行分析,发现了云母表面出现的黄原胶分子分别为双链和单链.本文中提出了黄原胶分子从网状结构到单个纤维形成过程的假设模型,很好地解释了实验观察结果,对以后的实验研究有很大意义.
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| 关 键 词： | 黄原胶分子 原子力显微镜 形貌 |
Atomic Force Microscopy Studies of Morphology of Xanthan gum Molecular |
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| LI Yan-qing,ZHI Li-li,CHEN Hui-min. Atomic Force Microscopy Studies of Morphology of Xanthan gum Molecular[J]. Journal of Ili Normal University, 2011, 0(1) |
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| Authors: | LI Yan-qing ZHI Li-li CHEN Hui-min |
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| Affiliation: | LI Yan-qing,ZHI Li-li,CHEN Hui-min(Department of Physics,Changji College,Changji,Xinjiang 831100,China) |
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| Abstract: | Xanthan Gum aqueous solution were prepared by sol-gel method,the micro-surface topography for xanthan gum at different concentration were studied by tapping mode atomic force microscopy(AFM).It was found that the tapping mode AFM can get the information about the mocrostructure of xanthan gum polymer.In the hightest concentration,the xanthan gum molecules aggregate together and form many similar conglobulation. When the aqueous solution was diluted to overlap concentration,entangled network morphology forme... |
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| Keywords: | Xanthan Gum molecules atomic force microscopy(AFM) topography |
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