Register to reply

Van Der Waal's adhesion.

by siddharth5129
Tags: adhesion, waal
Share this thread:
siddharth5129
#1
Nov5-09, 11:03 PM
P: 94
I have researched a little online and apparently Van Der Waal's adhesion forces play a key role in the sticky properties of glue and the bonding between gecko setae and tree surfaces. What I don't understand is why this adhesion doesn't happen between the surfaces of any two solids brought in contact. Even if this does happen to some imperceptible extent , why aren't the surface-surface adhesive forces as strong as the cohesive forces between the molecules of each solid, which should render them very hard to separate.(the surfaces should be broken apart to separate them)
Phys.Org News Partner Physics news on Phys.org
Step lightly: All-optical transistor triggered by single photon promises advances in quantum applications
The unifying framework of symmetry reveals properties of a broad range of physical systems
What time is it in the universe?

Register to reply

Related Discussions
Cell adhesion Biology, Chemistry & Other Homework 0
Calculating the equilibrium distance Materials & Chemical Engineering 5
Critical Density and Vander Waal's Equation Chemistry 3
Van der Waal's equation of state Introductory Physics Homework 3
Reconciling van der waal's equation of state with experimental observations Introductory Physics Homework 0