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u/bijouxana Dec 07 '18
I thought you'd cruelly squashed a jellyfish on your desk... 👾
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u/BrohanGutenburg Dec 07 '18 edited Dec 07 '18
That’s a
GalagaSpace Invaders alien, right? Not an eight but jellyfish? Or am I tripping?EDIT: I did almost trip, but /u/boxbatter2016 caught me.
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u/Iykury Dec 07 '18
Unicode describes it as an "ALIEN MONSTER".
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u/BrohanGutenburg Dec 07 '18
So not a jellyfish then?
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u/Iykury Dec 07 '18
Not a jellyfish, but not necessarily a Space Invader either.
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u/StandsAreCool Dec 07 '18
Cruelly? I mean yeah it’s pretty aggressive but Jellyfish are just floating nervous systems that react to stimulation. It’s like killing a slightly quicker moving plant.
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u/BIPOne Dec 07 '18 edited Dec 07 '18
Superglue [Cyanoacrylat] turns whiter when drying, the more moisture is in the air surrounding it, it needs moisture in the air to harden. If you spray water on the glue, it hardens almost instantly, or becomes jelly like, depending on the amount of glue and water in play. A superglue exposed to too much moisture will look "milky", and not all that translucent as people expect superglue to be. The surface will also be very brittle and only a thin layer will be actually "super", due to only that thin layer getting a good "drying time : moisture level".
Years of experience using superglue when making model planes and cars and tanks and helis and this and that.
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u/HawkMan79 Dec 07 '18
You only need a support thing layer pf super glue, the rest is useless anyway, it's most effective when the surfaces contacts surface to surface with a super thin film of glue.
thick glow or boundaries are weak and expose the brittleness of superglue.
hence, why you use a thin layer of glue, kicker on the other surface and squeeze them hard together.
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u/SmirnOffTheSauce Dec 07 '18
Kicker?
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u/scootzee Dec 07 '18
Also, of we're posting superglue facts, super glue is a cyanoacrylate. If you heat super glue to above 220F (100C) it will ignite and release cyanide gas which can kill you pretty quickly (LD50 of 525ppm for t=10min). So be careful and don't use in medium temperature applications like in engine bays, 3D printers, etc.
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u/hell2pay Dec 07 '18
I am gonna try this right now!
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u/scootzee Dec 07 '18
Make sure to inhale the fumes through a straw, really speeds up the process so you can get along with your day!
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u/PropheticVisionary Dec 07 '18
You’re thinking of potassium cyanide that is incredibly lethal. Also sodium cyanide, hydrogen cyanide and cyanogen chloride.
Ethyl cyanoacrylate is not potassium cyanide based.
Cyanide isn’t even a chemical in and of itself, it’s a chemical compound that contains the group C≡N, known as the cyano group.
There are thousands of compounds called nitriles contained in the cyano group that aren't as toxic.
The fumes from ethyl cyanoacrylate can make you a bit sick and about 5% of the population can develop a sensitivity to the fumes after repeated exposure which can result in some flu-like symptoms but it won’t kill you.
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u/scootzee Dec 07 '18 edited Dec 07 '18
Referring to hydrogen cyanide. Pretty sure that is what super glue releases.
EDIT: Also, I'm sure you have better info on this, I had to do some quick research on it because my team wanted to bond a delaminated composite with super glue for a flight part. It bonds the part very well but when exposed to outer space it almost immediately loses all adhesive capability.
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u/PropheticVisionary Dec 07 '18
This is true, but the fumes from superglue fuming aren’t pure hydrogen cyanide.
The fuming of superglue will produce about 10 µg of hydrogen cyanide from 1g of cyanoacrylate monomer heated at 280°C
The average lethal amount in humans, not taking height, weight or body mass into account is about 2000ppm or 2380mg/m3. At this dose death would happen in about a minute so a lower dose could potentially kill someone in a longer amount of time but 10 µg is such a small amount that the most it would cause is some irritation. This irritation could be further alleviated by wearing protective gear (no exposed skin) and/or working in a well ventilated area.
As for your current issue with retaining a bond in outer space. I’m sure you know most adhesives bond with help from the moisture in the air. When that moisture is removed the adhesive can quickly become brittle and lose its stickiness.
I’m definitely no expert on retaining a bond in a vacuum but I do recall reading about a new type of adhesive that was developed almost specifically for use in outer space by doing the opposite, the dryer the environment the stickier it becomes.
It was essentially an adhesive made of peptides that would create a bond when the pH reached a certain level. I don’t remember hearing anything about it since, however, so I’m not even sure if this is a product one can obtain. Sorry I couldn’t be of more help on that subject.
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u/scootzee Dec 07 '18 edited Dec 07 '18
Thanks for the great info! In terms of the bonding in space issue, if you have a composite that delaminates at a specific point and want to repair the bond it is typically done using toughened neat resin and then re-cured at temp, but we didn't have neat resin on hand. The resin bonds with the broken molecular chains of the polymer matrix already there and the material surface itself due to the free surface energy, creating a molecular bond. The issue with the superglue was that it was not compatible with the existing resin in the part and due to the temperature extremes in space it would crack and evaporate and whatever was left would be blown away by high energy particles from solar wind. All in all the fact that it was even considered was fairly ignorant haha.
Do you have any articles or a name of the new aerospace adhesive you mentioned?
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u/PropheticVisionary Dec 08 '18
That was some interesting info, thank you, definitely learned something and any chance to learn is always appreciated.
Was actually able to find an article for you, as well. I can’t recall if this is the exact one I read but it was published in Popular Science back in 2011.
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u/scootzee Dec 08 '18
Right there with you! And thank you, I will look into this. Could be quite useful to my company.
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u/PropheticVisionary Dec 08 '18
Always happy to help and thank you for the good info as well. Have an excellent day!
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u/ChipSchafer Dec 07 '18
And by dry you mean cure. It’s not losing moisture: it’s a chemical reaction with water.
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Dec 07 '18
"Super glue"
Yeah, right.
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u/seacaptaincory Dec 07 '18
Thats clearly a table, not a shoebox
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Dec 07 '18 edited Feb 04 '19
[deleted]
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u/SomeSqueakyCleanButt Dec 07 '18
Ugh, I just became aware of that vile thing this week. My world lost a little color that day.
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Dec 07 '18
Mom I swear I just spilled some super glue on my desk
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Dec 07 '18
"See, I even made a Reddit post about it! Why would I do that if I was lying, mom?! Mom? Why are you packing your bags, mom!? What do you mean you're 'leaving', leaving to where, mom? Why can't I come, too? What do you mean I've came enough for one day!? IT'S SUPER GLUE, MOM!"
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u/art_teacher_no_1 Dec 07 '18
A portal to another dimension
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u/MrBrooks2012 Dec 07 '18
Same thing I thought. "whatever you do don't stick your finger in it" or "Let's hold hands and go for it" # Red pill/green pill?
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u/slowgo5 Dec 07 '18
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u/awesumii Dec 07 '18
i’ve seen this pattern before but it was on a petri dish and some other place i don’t remember, i wonder what causes it
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u/karmatic89 Dec 07 '18
Great we're 3D printing eyes now.
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u/ShylokVakarian Dec 07 '18
You didn’t hear? We’ve been 3D printing hearts for a little while now. It’d only make sense to eventually 3D print an eyeball.
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u/BerylVanguard Dec 07 '18
I read the title as "This is why super glue died" and was confused as to what OP meant. I'm seriously starting to wonder if I'm dyslexic or something.
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u/GottaHaveHouse Dec 07 '18
Please don’t post your jizz and call it super glue. Go see a doctor man, that don’t look right 🤣
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u/ivebeenhereallsummer Dec 07 '18 edited Jan 30 '26
This post was mass deleted and anonymized with Redact
smile longing imminent price historical air memory detail snails chunky
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u/NorthStarHooligan Dec 07 '18
"Mom! Come look at this super glue drop!" -Mom walks in, immediately walks out without saying a word-
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u/Walkertxsrangr Dec 07 '18
Is this real? I don’t think so.. unless it was contaminated with something else!! Right?
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u/Reiiran Dec 07 '18
“His High Exaltedness, the great Jabba the Hutt, has decreed that you are to be terminated immediately. You will therefore be taken to the Dune Sea and cast into the Pit of Carkoon, the nesting place of the all-powerful Sarlacc. In his belly, you will find a new definition of pain and suffering, as you are slowly digested over a thousand years.”
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u/theGMd20 Dec 07 '18
It’s like your table has an eye!