Potential distortion model for contact angle and spreading. II. Temperature dependent effects
Potential distortion model for contact angle and spreading. II. Temperature dependent effects
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DOI：
10.1016/0021-9797(73)90219-1
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发表时间：
1973-08
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影响因子：
--
通讯作者：
A. Adamson
中科院分区：
文献类型：
--
作者：
A. Adamson
先前提出的模型[J.Colloid Interface Sci.，27，180（1968）]，以提供温度依赖性。如果它是假设的吸附膜，而液体一样，不同于散装液体的焓和熵，然后产生了一些新的关系，包括接触角的温度变化。从该应用得到的一个预测是，应该存在用于铺展的临界温度，即，接触角在其以上为零的温度。这个温度被发现是正常沸点和临界温度之间的散装液体。
A previously proposed model [J. Colloid Interface Sci.,27, 180 (1968)] relating adsorption isotherms and contact angle or spreading coefficient is extended to provide for temperature dependence. If it is assumed that the adsorbed film, while liquid-like, differs from bulk liquid both in enthalpy and entropy, then a number of new relationships are generated, including the temperature variation of contact angle.The model as modified is applied to literature data on then-octane Teflon andn-decane Teflon systems. One prediction resulting from this application is that there should be a critical temperature for spreading, that is, a temperature above which the contact angle is zero. This temperature is found to be between the normal boiling point and the critical temperature of the bulk liquid.