| 明胶胶凝过程的动态光散射研究 |
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| 引用本文： | 张渭滨 Sore.,CM.明胶胶凝过程的动态光散射研究[J].华侨大学学报(自然科学版),1991,12(2):154-161. |
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| 作者姓名： | 张渭滨 Sore. CM |
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| 作者单位： | 华侨大学，Kansas State University U.S.A |
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| 摘 要： | 本文用动态光散射技术(DLS,又称为 PCS 或 QELS)和粘滞测量技术,研究了明胶从溶胶到凝胶相变过程中的弛豫性质.发现其动态光散射谱在初始的指数衰减之后是伸展指数衰减.在整个过程中,宽度参数β从1附近逐渐减小为胶凝点附近的1/3,其结果与最近这方面的理论研究相符.
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| 关 键 词： | 明胶 溶胶 凝胶 驰豫 动态 光散射 |
Gelation Relaxation of Gelatin as Observed by Dynamic Light Scattering Technique |
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| Zhang Weibin C.M.Sorensen.Gelation Relaxation of Gelatin as Observed by Dynamic Light Scattering Technique[J].Journal of Huaqiao University(Natural Science),1991,12(2):154-161. |
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| Authors: | Zhang Weibin CMSorensen |
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| Abstract: | The relaxation spectrum of aqueous gelatin during its phase change from sol to gel was studied by dynamic light scattering technique(DLS,also known as PCS or QELS).The spectrum was found to be an exponential decay followed by a stretched exponential decay,with a decreasing width parameter. The relaxation behaviour thus observed is in agreement with the results of recent theoretical studies. |
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| Keywords: | gelation relaxation of gelatin stretched exponential decay dscreasing width parameter |
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