What is the structural component of disjoining pressure?

[Yinxiao Li]

It is widely believed that there are three components of disjoining pressure: the dispersion component (Van der Waals), the electrostatic component and the structural component. For the first two, there are some accepted formulations for calculation. However, I cannot find any equations for the structural components. Is there any papers that give an explicit equation?
Thanks!

 

[Bystander]

Structural effects on physical properties aren't regular enough to be summed up in any sort of cookbook equation, sorry. If you read carefully, you'll find the other two components have a "molecular area" approximation built into them.