7 ms·
Who says this will be a specialized adhesive? If it works as advertised, it could be a super-glue alternative with easy unglueability. That would be an attracti
by gizmo686 2mo ago
Who says this will be a specialized adhesive? If it works as advertised, it could be a super-glue alternative with easy unglueability. That would be an attractive consumer product; and the type of product that could easily end up on someones hands.
- danbruc 2mo agoSuperglue 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.
- SV_BubbleTime 2mo agoAlso… Uncure is a popular brand of cyanoacrylate remover. This is already a solved problem it seems.
- danbruc 2mo agoNever 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 https://bsi-inc.com/sds_pdf/sds_un_cure.pdf [2] https://en.wikipedia.org/wiki/Dimethylformamide https://en.wikipedia.org/wiki/Dimethylformamide [3] https://en.wikipedia.org/wiki/Ethyl_acetate https://en.wikipedia.org/wiki/Ethyl_acetate
- SV_BubbleTime 2mo agoIt must be extremely low vapor pressure compared to acetone. Little smell and not an ultra airtight lid. Lasts forever.
- s0rce 2mo agoyes, DMF has a much higher boiling point. Its much more polar.
- entrepy123 2mo agoWow, 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.
- fingerlocks 2mo agoJust like acetone.
- psd1 2mo agoI sensitised my hands with a single exposure to acetone, and now even isoprop gives me painful flaky fingers for days. I wish I'd worn chemical gloves.
- fingerlocks 2mo agoYou should see a doctor. Acetone only dries out the top skin layers, which immediately triggers a healing response and accelerates the shed cycle. Dermatologists use acetone prior to skin surgery to speed up the recovery. It’s extremely safe. Your body naturally creates it and you exhale and piss it out every day. If you are having any long term health issues from exposure then this may indicate that your immune system is seriously compromised.
- psd1 2mo agoI am aware that acetone is created by metabolic pathways. I foolishly dunked my hands into it for several minutes. I'm confident, with hindsight, that it penetrated my epidermis in concentrations far higher than found in the body. It is a very small molecule and a very strong non-polar solvent, one which can eat cell walls.
- s0rce 2mo agoI've always heard of using nitromethane to remove super glue...
- refurb 2mo agoDMF is quite different than acetone. As a chemist it’s a highly polar, very high boiling point solvent that is the “go to” when you can’t find a solvent your reactants dissolve in. Acetone is less polar, more chemically reactive and lower boiling point. It’s rarely used as a reaction solvent due to its reactivity, but it is common in crystallizations. Both are quite non-toxic (your body makes small amounts of acetone!), but I recall a cancer risk with high exposures of DMF (the example was tannery workers who sprayed it without any safety gear and got soaked).
- pessimizer 2mo ago> 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/ https://www.quirkyscience.com/how-to-glue-teflon/
- Melatonic 2mo agoGlue working on UHMWPE would be amazing too
- torginus 2mo agoImo superglue is a shitty glue - it's far too strong and weak at the same time. It's strong in the sense that if you glue two thing together, you're unlikely to get them apart without damaging them. At the same time, superglue's brittle, meaning if you handle objects that were glued together, they're eventually gonna come apart in your hands. There's a reason smartphone screens use some special mystery glue not CA. The problem with acetone is that you can't really get the solvent to the surface that's glued, since that's often inside the object, so it's really tricky to use. It's also toxic and attacks basically everything that's plastic or painted, resulting in a lot of damage.
- murderfs 2mo ago> There's a reason smartphone screens use some special mystery glue not CA. AFAIK, smartphone glues tend to be acrylic adhesives, which are just as brittle as cyanoacrylate. They get around this by not bonding the screen directly to the chassis with the glue, but having the adhesive carried on tape.
- neoecos 2mo ago3M will fight for this patent
- jojobas 2mo agoA 1L bottle of denaturate is cheaper than 200ml bottle of hand sanitizer where I live.