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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/60185

    Title: 利用動力凝結模型來預測懸浮液之黏度
    Authors: 董崇民
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: 懸浮液;粘度;剪切率;動力凝結模型;聚丁二烯二醇;擬塑性
    Date: 1987-11
    Issue Date: 2011-10-13 13:25:33 (UTC+8)
    Publisher: 臺北縣泰山鄉:明志工業專科學校
    Abstract: 利用非常簡單的動力觀點一凝聚粒子的形成和破壞,來描述懸浮液的擬塑性行為。在穩定狀態,凝聚粒子的形成和破壞達到一個動態平衡,懸浮液的黏度即正比於凝聚粒子狀態。粒子間的凝結過程和表面力有關(包括凡得瓦力) ,而假設和剪切應率無關,而凝聚粒子的破壞則和剪率的m 次方成正比。最後,我們得到一個簡單的方程式。利用此動力觀點,我們預測兩種不同粒經混合的懸浮液黏度,發現實驗結果和理論值相當,除了在小粒子佔全部粒子重量百分率20以外。在這種狀況下,我們尚必須考慮最大堆積分率的影響。
    From a simple kinetic viewpoint – the formation and rupture of Iinks between primary particles, We can describe the pseudoplastic behavior of suspension. At steady state, the formation and rupture of links reaches a dynamic equilibrium, and the viscosity of suspension is proportional to the state of aggregates. ' I t was assumed that the links are formed due to surface forces ( including van der waals force) and was independent of shear rate And the rupture of I inks was proportional to r m. Finally, we get a very simple equation. With this simple kinetic viewpoint, we predict the pseudoplastic behavior of suspension composed of binary blends of monodisperse particles.
    Relation: 76年技術與教學研討會論文集,頁169-178
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Proceeding

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