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Glue bonds to nonstick surfaces and wipes clean with ethanol

cen.acs.org

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Re: Glue bonds to nonstick surfaces and wipes clean with ethanol

#91

Post by Melatonic »

murderfs wrote: post #20

> “Since ethanol is the main component of hand sanitizer, we believe it is possible to de-bond and recycle the adhesive by using hand sanitizer as a substitute in certain real-world situations,” Aida says. These sorts of environmental impact blurbs are hilarious. What kind of scenario are they envisioning where someone wants to remove and reuse a specialized adhesive bonding PTFE parts to something, but don't have et…

Supergluing your fingers together or other bits of skin is also a well known issue people face when using glue. So it could just be a hedge against people's fears

Re: Glue bonds to nonstick surfaces and wipes clean with ethanol

#92

Post by Melatonic »

pessimizer wrote: post #79
danbruc wrote: post #51

Earlier quoted context omitted.

Superglue is probably two order of magnitude stronger, so I doubt that this will replace cyanoacrylates. And while ethanol or hand sanitizer will not help much with superglue, acetone or nail polish remover will remove it. Then again, acetone will attack more materials then ethanol, so a glue that can be removed with ethanol might still be beneficial.

> Superglue is probably two order of magnitude stronger, so I doubt that this will replace cyanoacrylates. Superglue doesn't work on Teflon, or most plastics you want it to work on. Wanting to glue plastic things together isn't exactly a niche need. Being able to remove that glue with hand sanitizer would be wonderful. https://www.quirkyscience.com/how-to-glue-teflon/

Glue working on UHMWPE would be amazing too

Re: Glue bonds to nonstick surfaces and wipes clean with ethanol

#93

Post by Melatonic »

NonHyloMorph wrote: post #83
murderfs wrote: post #20

> “Since ethanol is the main component of hand sanitizer, we believe it is possible to de-bond and recycle the adhesive by using hand sanitizer as a substitute in certain real-world situations,” Aida says. These sorts of environmental impact blurbs are hilarious. What kind of scenario are they envisioning where someone wants to remove and reuse a specialized adhesive bonding PTFE parts to something, but don't have et…

I read it as "specifically for ptfe" too. Where would you glue that? (Heart surgery?)

One PTFE piece to another PTFE piece ?

Re: Glue bonds to nonstick surfaces and wipes clean with ethanol

#94

Post by Melatonic »

DivingForGold wrote: post #81

Budding armchair polymer chemists: The article specifically states this adhesive works by way of flourine-flourine bonds (found in PFAS and flourocarbon materials). It does not indicate that it can bond other very low or low polarity polymers, the most common being polypropylene and polyethylene, which there is no known adhesive that will bond strongly to those two polymers, arguably these 2 are much more common than…

I saw this and was immediately excited for use with UHMWPE. Too bad it doesn't work on polyethylenes

Re: Glue bonds to nonstick surfaces and wipes clean with ethanol

#95

Post by jacinda »

murderfs wrote: post #20

> “Since ethanol is the main component of hand sanitizer, we believe it is possible to de-bond and recycle the adhesive by using hand sanitizer as a substitute in certain real-world situations,” Aida says. These sorts of environmental impact blurbs are hilarious. What kind of scenario are they envisioning where someone wants to remove and reuse a specialized adhesive bonding PTFE parts to something, but don't have et…

I will refer you to my ER physician friends, who have stories of people attempting to use adhesives of all varieties in the most absurd ways. People will apparently attempt to put anything, anywhere.

Re: Glue bonds to nonstick surfaces and wipes clean with ethanol

#96

Post by tape_measure »

DivingForGold wrote: post #81

Budding armchair polymer chemists: The article specifically states this adhesive works by way of flourine-flourine bonds (found in PFAS and flourocarbon materials). It does not indicate that it can bond other very low or low polarity polymers, the most common being polypropylene and polyethylene, which there is no known adhesive that will bond strongly to those two polymers, arguably these 2 are much more common than…

It's like soap for fluorine compounds.

Re: Glue bonds to nonstick surfaces and wipes clean with ethanol

#97

Post by tape_measure »

DannyBee wrote: post #16
squigz wrote: post #14

In what context would one re-use a glue like this?

I have a weird use case, but this is actually wildly useful to me. I use teflon (sometimes nylon, but mostly teflon) painter pyramids/holders/etc, because i spray finish stuff that is very good at adhering to lots of things, and are acetone based - VOC compliance pretty much forced acetone into solvent based stuff. This in turn pretty much makes finishes melt into anything except PE, nylon, teflon, even if they would…

Acetone would almost certainly dissolve this stuff also.

Re: Glue bonds to nonstick surfaces and wipes clean with ethanol

#99

Post by compass_copium »

DannyBee wrote: post #15
oflannabhra wrote: post #11

I guess one of my favorite old-school websites will need to get updated, ThisToThat [0]. [0] - https://www.thistothat.com

This website often suggests totally bad ideas, like brittle epoxies for bonds they shouldn't be used for. The truth is nowadays you can just choose your favorite brand and they almost certainly have a correct, and good, adhesive selector. For example, for loctite, you should just use: https://www.henkel-adhesives-selector.com/

Finally, I get to see my company plugged on HN!

Re: Glue bonds to nonstick surfaces and wipes clean with ethanol

#100

Post by fingerlocks »

entrepy123 wrote: post #75
danbruc wrote: post #61

Earlier quoted context omitted.

Never heard that name, but according to their safety data sheet [1] it is 95+ % dimethylformamide [2]. Not too different from acetone, with a additional dimethylamin group. Acetone-free nail polish remover usually contains primarily ethyl acetate [3] which is also structurally similar. [1] https://bsi-inc.com/sds_pdf/sds_un_cure.pdf [2] https://en.wikipedia.org/wiki/Dimethylformamide [3] https://en.wikipedia.org/wiki…

Wow, speaking of safety -- I just looked it up to see if Un-Cure superglue/CA debonder would be safe enough to use on hands, or would just cause the chemicals to be broken down and absorbed through the skin at a fast rate too (which I personally wouldn't want), and the initial results I see say that it's ok to use on hands. Wow again.

Just like acetone.
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