Questions tagged [adhesion]

Adhesion refers to the attractive forces that exist between two materials. Questions that are based on these attraction forces, e.g: surface tension, contact angle, capillary rise, should use this tag. use with the tag: [surface-chemistry]

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Improving paraffin wax adhesion to steel - surfactants and adhesion modifiers

Context I use paraffin wax as a lubricant for my bicycle chain. It is a personal / DIY project. Essentially, wax is melted in a slow cooker and a bicycle chain is immersed in the melted wax. There are ...
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Are there standard measures of adhesion?

I am looking for quantitative indicators of how well water displays adhesion with respect to other materials like glass, metal, wood...did not find anything immediately on a google search. I need only ...
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Best way to bond polyethylene to to aluminum?

I am a quality engineer looking for some chemistry expertise that can hopefully assist in solving a problem we are having at our company. We are a water filtration company and our location produce the ...
Patrick's user avatar
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How to remove a strong, (silicone?) adhesive that holds felt onto a tennis ball?

I want to put new felt on tennis balls. But first, how do I get the old felt off? I tried heating up the felt to 305C using a soldering gun. I started at lower temperatures before that. The adhesive ...
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Why doesn't contact adhesive stick well to cured modified silane polymer? [closed]

A contact adhesive(dissolved neoprene rubber) sticks well to rubbery smooth materials like rubber, so why doesn't contact adhesive stick well to a cured modified silane polymer (caulk like hybrifix ...
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Are all humectants sticky?

While using a topical lotion based on ethanol, water and propylene glycol, I noticed that it becomes sticky while drying. Propylene glycol is a humectant and is used for this purpose in ...
MWB's user avatar
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Are there any types of adhesive which are designed to be easily soluble in strong acid (HCl with pH 1-4)?

I am a mechanical engineer so forgive my ignorance in chemistry. I know there are water soluble adhesives like polyvinyl alcohol but I am wondering if there are glues which easily dissolve in low pH ...
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Is this plastic clip made of polypropylene or polyethylene?

I am trying to re-attach an automotive clip (painted plastic with a yellow (epoxy?) hard adhesive backing) which secures a trim piece back onto the vehicle's roof sheet metal (unpainted (primed?) area)...
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Nanocomposite hydrogel for wet adehsion in biomedical applications

My name‘s Tristan and I‘m a bachelor‘s student in Germany. I‘m trying to synthesize an injectable nanocomposite hydrogel for wound closure and wound healing applications. The problem is that, next to ...
David Harvest's user avatar
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Why does contact glue get stickier (to itself) as it dries?

I'm thinking of that type of glue that you apply to both sides, let dry and then press together. Like this. It seems counter intuitive. Other glues behave in the opposite manner, and get less sticky ...
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What will a polyurethane resin not adhere to?

For making a mould out of the bicomponent polyurethane resin kit that I have - I am going to need to take out the mould from its form. The mould is what I am actually making from the bicomponent resin....
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Breaking/reducing water adhesion with an electric field

Does anyone know if the presence of an electric field can help to reduce water adhesion to a surface?
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What are some materias/substances that can be applied to a ball such that the ball will stck to a wall,if thrown

I am trying to make a prototype for the "valkyrie camera" seen in the video game Rainbow 6 Siege This is how it works https://gfycat.com/impressivegrippingauklet the black ball seen is the ...
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What's the mechanism behind mineral oil loosening cyanoacrylate bonds?

Per industry literature I found that mineral oil is used to loosen out "super glue" and aid in removal from skin. I am exploring the chemistry of this loosening and I am intrigued. Please help me find ...
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What determines 3D printing material compatibility?

3D printing, specifically the type common for consumers FDM or FFF, involves laying down thin (typically 0.1 to 0.2mm) layers of molten plastic. Modern consumer printers can use various filaments: PLA,...
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Is there a scale for stickiness of glue? [closed]

Non-specialist question stemming from standing in front of a dizzying aisle of consumer adhesives... These differentiate themselves via meaningless superlatives like "serious", "extra" and "ultra". I ...
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Gluing bakelite together

I have an older stainless steel saucepan with what I've always called a Bakelite handle. The pan fell, the handle broke. If possible, I'd like to glue it. The break is near where the handle ...
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Crazy glue vs Nail glue

So I have a nail repair kit, consisting of nail glue(ethyl cyanoacrylate), powder and a nail buffer. I'm almost of out glue yet stick have a bunch of powder. One of the crazy glue tiny bottles has ...
Jane Doe's user avatar
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Weak adhesives, has some critical chemical been banned? [closed]

I notice that in the last 10 years or so, the adhesives I encounter in everyday life have gotten noticeably weaker, is this because some critical chemical has been banned or regulated out of consumer ...
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How to make sure molded silicone rubber adheres to the ABS mold?

For one of my experiments I need to coat a 3D printed ABS part with a thin layer of silicon rubber: Basically I want to make sure the molded silicon will adhere to one mold (the negative side in ...
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Near melting thermoplastic material accumulates in the sharper corners. What is this phenomenon?

I have a part made of a thermoplastic material. When I heat it up and cool it down, the dimension of the part changes non-uniformly. Somehow the melted material tries to fill the sharper corners. So ...
Foad's user avatar
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What gives saliva its adhesive properties?

The act of sealing off an envelope by licking the flap and "gluing" it down so that the envelope becomes closed rather tightly is probably rare nowadays, but remains well known to many people. I was ...
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4 votes
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How does water freeze and crystallize on a cold superhydrophobic surface?

Superhydrophobic surfaces are nano-structured to "repel" liquid water and there has been a lot of work done to understand the microscopics of wetting of these nanostructures. What I currently am ...
user157879's user avatar
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Why are glues/adhesives made up of polymers?

Why are glues/adhesives made up of polymers? Can monomers be used to make an adhesive. What is is about the fact that the molecules are stuck together in a chain that make them better/more useful as ...
user2679447's user avatar
2 votes
1 answer
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Why does rice become sticky after cooking?

Rice when not wet isn't sticky at all. But when you soak it in water for some time it gets sticky. What's the chemical change that occurs in rice that makes it sticky?
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Are there types of glue that are designed to be dissolved easily?

I've heard that some types of glue are easily dissolved. For example, wood glue dissolves in vinegar and super glue dissolves in acetone. This doesn't mean that wood glue or super glue were ...
Conor Patrick's user avatar
2 votes
1 answer
4k views

Salt and sugar surfactants?

How do daily compounds such as table salt ($\ce{NaCl}$) and sugar ($\ce{C6H12O6}$) affect adhesion or surface tension of water? Considering their polarity, I guess they both increase it.
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Why non polar liquids wet non polar surfaces better than polar surfaces?

In semiconductor industry adhesion promoters (such as HMDS) are applied on various surfaces to improve adhesion between the surface and the photoresist: On SiO2 and many metals surfaces, the air ...
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Work to overcome adhesion of a liquid to a solid

I'm interested in the van Der Waals force of a liquid adhered to a solid. For example, if you spray some water on a vertical piece of glass, the little droplets with adhere to the window rather than ...
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