Questions tagged [adhesion]
The adhesion tag has no usage guidance.
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Velocity Needed For Water To Overcome Adhesion Force To A Rounded Steel Inclined Plane
Context: I work at a fast food restaurant with a 3-module sink. The sides are slightly angled down to allow the water to trickle down into the compartments. I found that water clings to the side of ...
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What happens when we apply the exact same pulling force as bonding force of glue? [closed]
Suppose we have two things stuck together with a glue which takes anything above $50 \,\text{N}$ of force to get it to get rid of the sticking force and anything below $50 \,\text{N}$ making no impact ...
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What exactly are cohesive and adhesive forces?
Are cohesive and adhesive forces defined only when at least one of the interacting materials is a fluid?
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How does a snake climb the wall?
Consider a snake climbing up the wall or ant climbing up the wall, which force is responsible for it?
An obvious answer is frictional force but my question is that if there is a normal reaction ...
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Spoon with Marmalade in Space [closed]
I sit in a space shuttle in zero gravity condition.
I have a spoon in one hand and the jar of marmalade in the other.
I take marmalade with spoon.
If I shake it very hard, will the marmalade detach ...
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How to implement Macro-scale dyanmics simulation with adhesive and cohesive failure?
It's my first question here about physics.
I would like to ask about the macro-scale physics (the governing equation) needed to implement a dynamics simulator with adhesion and cohesion. Consider the ...
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What is the result of this Newton's cradle experiment where the initial ball doesn't bounce (exactly as in the regular case) but it has glue on it?
I have a question about a Newton's cradle type collision, but it has a twist to it. First, I will describe two well-known results, and then I'll add my twist.
First, consider a cradle with five balls (...
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Gravity vs adhesion of a water droplet
How much volume can a water droplet that is attached to a vertical glass surface have before it begins to roll downwards?
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Would an adhesive surface have more air resistance?
Imagine spreading double-sticky tape all over the surface of a car or a plane. Would there more significantly more aerodynamic drag as a result of the adhesive 'sticking' to air molecules and slowing ...
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What is the minimum vertical length of contact with the wall needed for an object to stay attached to a wall with an electrostatic force?
Say there's an object, a rectangular prism, that becomes electrically charged and then stuck on a wall using the electrostatic attraction between the object and the wall. The object and wall are ...
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Water traveling on a letter in a water feature
Difficult for me to ask as I'm not a physicist.
Assume you have a water feature in the form of a waterfall where the water runs down a wall. On this wall, there are letters attached by a raised ...
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Strange occurrence of glue drying
What happened here? I by accident spilled super glue and formed these amazing ridge patterns. Any ideas what caused this to happen?
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Why do wet napkins stick to mirrors or glass?
Take a dry piece of napkin & put it against a mirror ==> it falls down.
Dab it in water, oil, or alcohol ==> it now sticks / adheres to the mirror.
How can we explain this in physics terms? ...
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If friction and normal force are both the components of contact force, shouldn't the friction be repulsive?
Is friction due to intermolecular attractive forces or repulsive ones.
Since both friction and normal force are the components of contact forces, shouldn't friction be repulsive.
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How does a plate stick to a tablemat?
So at my dinner table, I witness this weird phenomenon almost everday.
A wet plate if placed on the table mat sticks to it(works better if the plate is made up of steel).
I account surface tension and ...
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What makes silicone sticky?
I've read from 3M's Adhesion Science articles and this StackExchange question that there are three types of adhesion: chemical, physical, and electrostatic.
I'm curious about what makes silicone ...
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How do I quantify an adhesive's ability to stick in contrast to flow?
Let's say you glue a ball to a shovel.
How do you quantify this adhesive's and ball's ability to stick to the shovel, moving at different speeds, in air and then while the shovel digs into the ground?
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Effect of adhesive on ballistic fabrics
Adhesive is applied to "soft" ballistic fabrics (like kevlar or even fiberglass) in order to decrease bulge when being hit by a projectile.
What would be the effect of gluing layers of ...
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How to transform from a discrete to integral equation?
In this picture, the red curve is an elastic rod that has resistance to bending and extension. I am trying to model the adhesions (contact) between the rod and the substrate (glass): the green dashed ...
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Why does cold icing slide off a warm cake?
As in the title: why does cold icing slide off a warm cake?
I've been told that it's because a thin layer at the bottom of the mass of icing interacting with the surface of the cake melts to some ...
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What are the sealing adhesives for high vacuum system?
Recently, I have a project that needs to use a high vacuum system. During the construction process, I encountered a problem: I need to stick mica or glass to the window of the copper wall (one side is ...
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Is Viscosity due to adhesive forces or cohesive?
So if a non-ideal fluid is in motion, in a siphon for instance, then I completely understand why viscosity could arise due to cohesive forces between the particles.
But let's say we drop a metal ...
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Why I require more force to slide covered notebooks over each other with water between them although water work as lubricant?
We have learnt when floor is wet we get slip as it reduce friction and work as an lubricant.
But yesterday I take 2 notebooks which are covered by transparent sheet , than I pour little water on one ...
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Max allowed size of the pores that would prevent a viscous fluid to pass through
Let us have the following system where we put a viscous fluid from the upper inlet and we want this fluid NOT to enter the lower chamber thanks to adhesion & cohesive forces.
What is the max. ...
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Why does water follow the spoon's surface?
Why does water follow the spoon's surface?
Is the reason surface tension, viscosity effects, a pressure gradient?
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Is increased paint adhesion after sanding the result of extra surface area?
Often surfaces are sanded before painting to increase adhesion of paint to the surface. I have never seen an explanation as to why this actually results in much stronger adhesion of paint to the ...
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What forces act on a droplets hanging from surfaces?
What are the different forces acting on a hanging water droplet (tension of the droplet itself, surface adhesive forces, meniscus formation, etc)? What is the direction of each force, and how does ...
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Why does an elastic tape peel off neatly when stretched?
There is this video about a tape peeling trick trending on the internet.
If you have a tape sticking on a paper, it rips off the paper if you perpendicularly pull on the tape. But when you stretch the ...
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What is the change if a droplet of water is added to another droplet of water on a flat surface
There is a tiny droplet of water lying on a flat clean surface and I add a droplet of water to the tiny droplet on the surface. How can I explain the change that might occur?
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What type of adhesion is at play when dust is collected by water
A washing tower that rains water down through a polluted gas will take up the particulates in the gas. They do this through adhesion, I'm pretty sure.
Now, there's apparently 5 types of adhesion:
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