Turning a plastic soda bottle into foam

Check out Skillshare for your 2 month free trial: skl.sh/nilered
Most plastic bottles are made of PET plastic (polyethylene terephthalate), and in this video, I'll be recycling it into polyurethane foam. This was just one method of doing it, and in the future I might explore other ways.
Procedure: goo.gl/VdiA3p
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Nile talks about lab safety: • Chemistry is dangerous.
Music in credits (Walker by SORRYSINES): / walker

[@NileRed]

I totally forgot to add at the beginning that the video was sponsored by Skillshare. I am really sorry about that.

[@e13b]

NileRed rip

[@NileRed]

I somehow forgot lol. Oh well, there's always at least 1 mistake per video.

[@Mudye]

SPONSORED BY *S K I L L S H A R E*

[@Mastersujo]

I would like to see you make the fiberglass resin!

[@Kingsley4851]

You should do the advertisement at the beginning and get it out of the way before you start the chemistry. Seeing it in the middle was a little strange; man's gotta get paid, but it seemed a bit forced. It's amazing how long you have to wait until the product cures and how durable it becomes. Very cool!

[@gamer_kid_naz4942]

" I tried jamming my thumb into it, and it seemed relatively tough. But then it just kinda exploded" Nile Red -2018

[@rodrigokuszek]

Gamer_Kid_Naz ay lmao

[@thomasvic1761]

( ͡° ͜ʖ ͡°)

[@horaciohernandez2850]

What you did there? I see it.

[@Blox117]

i dont get it

[@Blox117]

wait i get it now, his thumb exploded LOL

[@signofcrashtest479]

I know literally nothing about science, but I love your videos!

[@shartnitazodkeesian4018]

I'm into science but disliked my chem classes. But this dood makes chem make a lot more sense.

[@Scotty-vs4lf]

same

[@ivannajera9704]

Here science in a nutshell: It’s all boring except when it’s explosions of fire

[@roj6895]

Sign of Crash Test same i hated science all thru school but his videos are so nice

[@SarcasticCupcake223]

same!

[@MadCrazeTheBlade708]

James Bond: and this is my mother, Bond, Ester Bond

[@MadCrazeTheBlade708]

@CosmoGrenouille 😆

[@totalyhuman_]

And his dad bond edhesive bond

[@jtbmetaldesigns]

🤣🤣🤣🤣

[@WaterWizard1000]

@@totalyhuman_ Ed H. Bond

[@pushparadhakrishnan7343]

The name’s bond, Ester bond

[@whynotanyting]

I love how you calmly explain all the details including smashing plates, your lack of painting skills, jamming your thumb into things until they explode, and smashing things.

[@SgtAbramovich]

Slowly but surely becoming an arts and crafts channel.

[@NileRed]

lol pretty much

[@Blox117]

i thought this channel was about food?

[@SgtAbramovich]

The joy of painting with Nile Red pls

[@scoobysnax]

chemistry is just arts and crafts with beakers, honestly

[@roboactive]

Kapp

[@scrubmaestro4406]

Alternative title: “How to poison your friends with toxic honey”

[@kukenballe7063]

Im pretty sure it would taste worse than shit and that you would puke from one drop of it.

[@sycamorph]

@@kukenballe7063 Yeah, that's why you mix it in with the real honey.

[@danibanani15]

@@sycamorph lol that's a really cursed comment

[@cadenhood]

Yeaaaaas

[@nonbinarypotatoes6038]

Friends... More like my enemy's

[@ralfbraun2950]

"So I just resorted to smashing it"... yeah, that's usually my approach to problem-solving

[@th1v5]

Well what about a argument with a friend

[@Froggers.]

@@th1v5 well.... there are multiple meanings to smashing.

[@th1v5]

@@Froggers. *that's what I mean*

[@Froggers.]

@@th1v5 same

[@Froggers.]

@@th1v5 same

[@fireandcopper]

2:15 I guess you could say It was a pain in the neck

[@caomore3153]

I suggest you go out the door

[@woden__]

That nearly gave me a seizure

[@explicitboyo6157]

You my good sir or madam *inhale* 👏 *exhale* I swear

[@CR-gh5bp]

Exit, perused by angry readers

[@bradenchesney9007]

@@woden__ It's funny, but not that funny.

[@AltoidJTP]

If I might suggest an edit, kind sir: Near the end of the skillshare promo, after showing the prussian blue stick figure, "Since I have been using the art courses on skillshare..." then cut to a still shot of the Mona Lisa.

[@NileRed]

Dont worry, that's what itll look like the next time i do art.

[@namelessguy199]

With gentle pan from left to right

[@noneofyourbusiness9907]

ha

[@redwithblue]

​@@NileRedlol ok

[@manuelpaukner2853]

For me as a polymer engineer, it really was a pleasure to watch this video. Great stuff!

[@taiwanluthiers]

I should mention that the commercial polyurethane foams are much thinner than your gooey chemical, I don't know why, or if they added some kind of a thinner to make it flowable. But it seems like a good way to recycle PET bottles and make home insulation on the cheap. Why aren't the bottles recycled more often and ending up polluting the seas? In Europe they have bottle deposits where you get your deposit back by turning it back into the shop.

[@BigBodyBiggolo]

I think its because they add something that creates more CO2 bubbles inside or blast air bubbles in it when curing, if i remember correctly its the air bubbles method but im not sure

[@sonatinac8514]

Which Europe does bottle deposit?i recycle in Europe ROI and got laughed by teens...

[@experiment35]

@@sonatinac8514 republic of ireland? ignore the teens man they don't know anything

[@davidmccormick7419]

plastic is rarely recycled as it costs more than to just make more plastic.

[@erwinrommel9509]

I just spent the last 2 months doing research on polyurethanes. Good work

[@bpark10001]

Perhaps you can also shed light on why polyurethanes are so unstable!

[@khayyam741]

Would you care to share it?

[@andrejohnsonmusic]

“I added some boiling chips I got from smashing a porcelain plate.” 🤣

[@vornamenachname6300]

Fully Fledged 78 smashed it on purpose, I assume

[@C134B]

that's how it's done in every lab, mostly from crucibles.

[@PotatoesAssistant]

What’s a boiling chip again

[@TheSithBlue]

"A boiling chip, boiling stone, or anti-bumping granule is a tiny, unevenly shaped piece of substance added to liquids to make them boil more calmly."

[@raiyiar]

@NileRed you should really consider using something else than porcelain as boiling chips. when these hard and sharp objects bump around in your RBF, they'll scrape and chip it, so it might be less resistant to stress in the future and break when cooled or heated fast or to dryness. use something softer, maybe even commercial boiling stones or mol. sieves if not working in acidic medium.

[@tycoinreno]

1:40 I'm jealous that you get to have blackberry ginger ale. That sounds delicious.

[@JL1009]

it’s not that great. cranberry on the other hand is incredible

[@redwithblue]

cranberry is more yummy but I like blackberry

[@wvhdogg]

I've been bamboozled. Just 2 days ago I was thinking to myself "NileRed should do a video on recycling plastic" and now I see this.

[@xNwkz]

12:22 NileASMR

[@trymatic7151]

Unrelenting Paragon Thank god I was not the only one

[@ZomBeeNature]

HA!

[@westie430]

That was so satisfying😍

[@DanielSMatthews]

Can you use the prussian blue that you made previously to colour the polyurethane foam?

[@chelarestelar]

dang, good idea.

[@Jamesvandaele]

He ... er, someone could market it as Nile red Prussian blue polyurethane foam.

[@Blox117]

if its blue does that make it edible?

[@KagoK]

Blox117 no.

[@weetardedcat2112]

lol

[@tinpony9424]

NileRed: "I thought that it looked like a really thicc honey." Me: pays closer attention

[@liliennerapoza9581]

I'm so excited for more videos about recycling like this! The thought that I might be able to reuse my plastic waste to mold polyurethane foam that I use for puppetry and art is highly appealing. Not only would it be a fun gimmick to say "Yes, this puppet was made possible because of my addiction to Dr. Pepper!" but if it is possible to mold, than it would be much easier to get the shapes I want this way than from attempting to sculpt (because cutting soft foam is a pain).

[@yusefdanielhassounharmouch1520]

After i noticed a new video i got so happy! This sweetened my horrible day at work

[@atombaxter1975]

Yusef Daniel Hassoun Harmouch That's why I don't work fam.

[@aidynwyatt5415]

i hope you have a better day at work tomorrow 😀

[@Blox117]

polymers taste good mmmh

[@matthewng7893]

@Blox117 wtf

[@JimnyVR5]

"TDI is toxic especially by inhalation" Nice VW burn there :)

[@1495978707]

Jimny VR5 Can you explain lol

[@LordOTR]

@@1495978707 Volkswagen has a designation for their Turbocharged Direct Injection engines, which is TDI. So it's kinda of a pun there to VW.

[@LordOTR]

@@1495978707 Also, they made some ilegal things to pass emissions with their TDI engines. Quite the thing right there haha

[@fsmith45]

Only relatively

[@seanb3516]

I have to remove thick oil from Rotovap flasks all the time. Instead of using the heat gun, which I used to do, simply use a heat lamp and patience. That way it gently works by itself with no one to attend.

[@solodark5646]

Fire hazard?

[@seanb3516]

@@solodark5646 Yes please.

[@kyladowell]

*when a youtuber makes more sense than your actual teacher* -teacher, you have failed me- Literally

[@JL1009]

and more money

[@kyladowell]

@@JL1009 True

[@GeekyGarden]

I have a PET plant in my back yard. I can always tell when they're running. It produces a very distinctive odor. Kind of a mix between sulfur and vinegar. It's not terribly strong or offensive. Depending on the stage of the production it can even have a fruity smell.

[@TheFlipside]

Aww yeah new NileRed video! Honestly I wanna be just like you when I'm older. There's nothing I want more than to be a chemical engineer working in a lab

[@cthegreat]

Flippy Sidee as a chemical engineer, some unsolicited advice: you're far better of getting a PhD in chemistry if you want to work in a lab. ChemE's can end up there, but the education doesn't quite line up.

[@0Arcoverde]

I'm grad student on chemistry To me the real downside is the pricing and place, but sooner or later I'm gonna get things going like many others projects that I once thought the same

[@pietrotettamanti7239]

Flippy Sidee I'm not a chemical engineer, but if you want to work in a lab it's better to become an university teacher. Chemical engineers don't have that much of a role in the lab.

[@leocurious9919]

What do you mean: "when im older"? Are you

[@sciencecompliance235]

What about having a massive trust fund and working on a tan?

[@beefcakes0623]

0:01 most plastic water mmmmmhhhh Plastic water Yes I know he was talking about the bottles

[@m4r1o148]

You know he's talking about the bottles, but the reason he said "Plastic water" is because of how he structured the sentence. "Most plastic (water and soda) bottles..." if that helps you understand.

[@sylviamccormicksmith7494]

Hackers001

[@lil_weasel219]

what an attention span you have... His sentence structure was correct

[@LilmanIzCool]

Does this count as a woooosh?

[@OldVids_]

m4r1o148 r/woooosh

[@ClearlyPixelated]

Thank you for posting your videos with as much detail and labeling as you do. I love the precise and methodical thought that you can tell goes into your process. Cheers!

[@sephirothsoul999]

Try dampening your silicone moulds before you let the foam expand in them. When insulating lofts with PU foam, there's a general procedure of spraying them with water to encourage expansion and this might help help getting it out of the container at the end too.

[@Kineth1]

@12:45 "This isn't even my final foam!"

[@bcddd214]

PLEASE DO THE "HARD RESIN" VERSION! Many people in the boating industry would love you.

[@TheFoxPlush]

Doing a college project on recycling, chose this video as the basis for my project. Worked pretty good! I started with some slightly colored PET and it ended up in a green foam lmao

[@seanb3516]

As I understand it you can use a simple cotton candy maker from Walmart to spin out threads from recycled pop bottles. Just chop into little shreds and run it instead of sugar. I've never done this however apparently it is being done to produce synthetic fibers in 3rd world countries.

[@reaganharder1480]

I have my doubts about if it would work. A quick google search reveals that the melting point of PET is about 100 degrees C hotter than that of sugar, so there's a strong possibility that it wouldn't get hot enough. Of course, it still sounds like a cool idea, and I would try it if I had spare cash for a walmart cotton candy machine.

[@seanb3516]

Reagan Harder When I saw this demonstrated (on TV) while being used in a 3rd world country they were using an antique CC spinner which was powered by a flame. Perhaps this is why they were able to have some success. I have never tried this however.

[@wernerhiemer406]

@@seanb3516 But if labgrade glassware gets into glass wool processing equipment - well this happens also. Ruining the injectors in the process.

[@seanb3516]

@@wernerhiemer406 I have to admit to not having performed the process or even observing it personally. I would also suspect that the correct equipment to produce simple fibers wouldn't be all that expensive. (note the use of the wording 'simple fibers')

[@5naxalotl]

PET recycling is super interesting. it's a pretty neat material but it's important to note that it absorbs a degree of water. if you want it to melt nice and clear you need to heat it for a long time to drive out water before you bring the temperature up to melting temp. as i understand it those spun fibers would basically be dacron

[@kalolord]

Pretty nice video! I actually did my thesis about chemical recycling of PET, but we used aminoalcohols. Keep up the good work.

[@MikaBoMS]

1:24 *sigma bottle* Respect 💪

[@MigWith]

I had to search for a comment talking about that

[@sac3528]

5:45 Forbidden beer

[@jincyquones]

I'd love to see more pigment chemistry

[@Crepnick]

You could totally make an ASMR video with that foam.

[@RaExpIn]

Nice video! I was somewhat scared when the isocyanate was added. After I made a few of these foams back in the lab, it seems very reactive to me. Imagine the fast polymerisation within a round bottom flask and its small neck...

[@schnizzyfizz7832]

When working in plastic production we made ABS foam by adding sodium bicarbonate into the rotation moulding chamber where the molten plastic was. It was actual store bought baking powder used for the first run. Worked like a charm.

[@Cadwaladr]

Polyurethane is pretty good stuff for a lot of uses, but it sure does make terrible condoms.

[@czdaniel1]

Gives new meaning to "HDPU Hardhats" (HDPU = High-Density PolyUrethane)

[@czdaniel1]

Trojan "HDPU Hardhats" It's what construction workers wear!

[@Blox117]

how do u know if you havent tried it

[@Blox117]

oh sorry i meant you. english is probably not your first language

[@Cadwaladr]

Wow, I didn't imagine you were super smart, but ok then.

[@tudorrel]

6:10 tasty beer 7:59 yummy honey 12:30 puffed rice cake

[@lorddiaboboss]

Your crushing it! I would love to see your approach recycling the different plastic and maybe some enzyme reactions for less landfill waste.

[@1495978707]

Thank you for saying where you got the stuff, it's always annoying when someone says "you can get these from your local chemistry shop" like that's a normal thing that people live near

[@catlover10192]

As a general rule, if something is legal to buy and sell, you can get it on ebay.

[@ElementalMaker]

What an excellent video! I have always been curious on how polyurethane foam was made! Now I know how to make it!

[@Everything_Animal]

These videos are so chill and calming, plus i get to feel like i learned something

[@sciencecompliance235]

That foam seems like it might make decent modeling foam. The long cure time is actually kind of nice, so it's more workable for a decent amount of time before you've settled on the final geometry but then hardens to be a more durable product if you want to use it for a mockup or something and don't have to worry about moving it around. I'd be curious about further dimensional changes over the entire cure cycle.

[@chronically_late]

Great video, I worked a year in PU foam development and because of you I had to dig out all my old paperwork... Feeling really nostalgic now :) If you want a few tips for the foaming process, just let me know!

[@khayyam741]

Yes maybe you are the person I was finding. Are you still willing to help?

[@Dylan-cs2vv]

Are we going to get to see "fiberglass" resin? I have a lot of bottles lying around the house if the procedure is cost-effective id really like to turn them into resin!

[@George-Edwards]

Hello, watching this video reminds me of something that I once witnessed while I was in high school. Some people from General Motors came to our school and put on a presentation in the auditorium that as far as I can remember was all science related. The thing I remember most vividly though was them putting some chemicals in a clear beaker or possibly just a bottle of some sort and then just holding their thumb over the end as they walked around on stage a couple of minutes shaking it as they described what was happening in the beaker. In the end the guy tipped the opening towards the audience and pulled his thumb off as one would if spraying some one with a shaken carbonated beverage. What popped out of the bottle / beaker though was a pretty good size chunk of a soft white foam that was instantly formed and able to handled with out any stickiness or anything. Whoever caught it was prompted to bring it up on stage and they proceeded to demonstrate how energy absorbing it was and I think at one point even throwing and egg at it without breaking it. I think they may have said it was or was similar to what the padding in padded dashes was made from but I may be wrong. I am almost 70 now so this was long ago, probably about 1965 or 1966. It might make a cool video if you have any idea what they did. Best I can remember the liquid in the bottle was clear to start out but the color might have changed as the guy was walking around and shaking it to a grey color.

[@westie430]

That's fascinating! It would be awesome if he could figure out what it was...🤔

[@Reavenk]

Yeeeeeeees! While you're at it, could you also do cost comparisons at different scales of productions against commercial products like Smooth-on?

[@mystamo]

Incredibly complex and detailed. Gold work as always sir.

[@HubsLab]

I was waiting for a new video!

[@baselthierry]

nile red: an amine group me: aN aNimE gRouP?!?

[@thanasispapoutsidakis9950]

To cut pet in really small pieces to be easy to process, heat it in mild heat (120c) to harden, then grind it in a coffee grinder. Heat may degrade it somewhat.

[@ashwynn4177]

Your experiments are at a totally other level!!. Good job

[@user-qp3qj2jv6f]

6:16 I just noticed that this looks like a really thicc light beer.

[@whythehelldoineedahandle]

Yeah me too

[@Tomwesstein]

I know nothing about plastics, that’s one thing I learned from this video... Interesting video!

[@zach3360]

THIS IS THE VIDEO I WAS WAITING FOR will you please try the other reactions I am very curious about breaking down different plastics THANK YOU

[@richlong2270]

You are my favourite channel on KZbin and this video highlights why . I am so engrossed by things that I would otherwise completely overlook awesome video

[@turgidbanana]

At 6:39 I read the lower part of the diagram as anime group. I had to do a double take 😂🤷‍♂️

[@Neanzo]

"Then it just kinda exploded" *lightly falls apart" I was expecting an explosion (I'm not good at chemistry, don't judge me)

[@lazyfellow5589]

8:17 "forbidden honey"

[@user-ql8vx8vc9g]

I watch this and ponder what it would be like to make a front lining to a shield out of a softer variety of this. Perhaps a layer of metal, a layer of the foam, and then a layer of wood with a handle to make a shield that could perhaps absorb a blow from a blunt object.

[@bunnybro5977]

8:07 and he we witness what could've potentially become the second pitch drop experiment

[@michaelmorgan3273]

is it possible that in future you could use a mold release like people do when casting with resin or do you think it would react in an odd way?

[@geeder9086]

I LOVE THAT MERCURY--ALUMINUM "SCULPTURE" - IT LOOKS LIKE TASTEFUL MODERN ART

[@WayneEarls]

I sprayed Rhino Linings for 14 years, and researched urethanes and polymers a few times over the years. Good video. I have been subscribed for a bout a year and watch every video. I can't grasp most of it, but I'm learning and experiments are always fun. Keep it up. I wish my channel would grow as fast as yours has. :D

[@claytoncoe838]

"Into a flask, I added some boiling chips, that I got by smashing a porcelain plate." Well, that's one way to do it...

[@schkann1384]

1:30 that sounds similar to..

[@Netherdan]

I'm looking forward to the mentioned follow up video on turning PET into fiberglass resin

[@wolvenar]

Wow, when you crushed the one in your hand it reminded me of an episode of Star Trek TOS. There was a scene where a couple redshirts were shot with an energy weapon that reduced them to a dry crystalline structure. The bad guy then proceeds to pick them up and crush one of them. It looked a lot like that.

[@doclmoreno]

I really like your videos, I'd love to see a video on how these processes are achieved, I imagine a chemist trowing stuff into a beaker and heating it up until something happens😂

[@unstoppableExodia]

This was more of a chemistry lesson than I was expecting. Was very interesting even if the particulars of esters and glycols might require repeated mentions in other videos to really sink into my knowledge base.

[@raiyiar]

i want to thank you for the beautiful video again, but point out that you should really consider using something else than porcelain as boiling chips. when these hard and sharp objects bump around in your RBF, it'll scrape and chip it, so it might be less resistant to stress in the future and break when cooled or heated fast or to dryness. use something softer, maybe even commercial boiling stones or mol. sieves if not working in acidic medium.

[@sunnydayssandytoes4337]

The kids and I love watching even if we dont understand all the chemicals stuff. We get the gist and its fun to watch. We also love that you show your mistakes and how you learn from them.

[@danielbickford3458]

Just curious, what do you do while waiting for the various chemical reactions to happen or the temp to go up or down?

[@kiwipear70]

For a higher PET level would you need more Diethylene Glycol? Is there a specific ratio of DG to Plastic? I'm an amateur so i don't really know, sorry

[@knucklesskinner253]

Please explore the sponges!!! So interesting using wasted plastic to clean up other potential plastics

[@Scott_C]

Neat seems like you made a closed cell foam. I'd love to see you make the open cell variant, possibly memory foam.

[@filipe363]

could you make the kevlar syntesis?

[@twocvbloke]

A few years back, someone threw out a beer brewing barrel, and it got blown out of their bin, it was made with PET, so I threw it in our recycling bin, the bin fairies refused to empty the bin stating that the barrel was "not recyclable", apparently they need educating in what PET is, I did get them to take it though, I just buried it at the bottom of the bin so they didn't see it when they emptied the bin... :P

[@czdaniel1]

The size of the barrel made it un-recyclable in their system. Too big to fit in their shredder. That's what made it unrecyclable in that context.

[@ming7831]

twocvbloke question, wtf is a bin fairy? I’m not trying to offend you but, what?

[@twocvbloke]

Also known as bin men, the lazy cunts who casually wheel a bin to the back of the truck, push a button & let the machine work for them, then have the audacity to bitch and moan about the bin being "too full" when they didn't empty it two weeks prior... I remember when real bin men had to lift metal bins filled with coal ash onto their backs and tip it into the trucks, they never whined...

[@czdaniel1]

+twocvbloke -- I think you would like comedian, Denis Leary. Minus a British accent, and your post becomes exactly like his comedy routine.

[@dougneon9550]

twocvbloke doesn't mean those bin men liked the work, they probably had little choice

[@arnau4294]

The castor oil has 3 functionalities, which allows for the crosslinking and and to form a three dimensional polymer rather than the two dimensional one that would appear from the reaction of TDI and the diol (changing considerably its properties). Polyols with different chain lengths can be mixed to modify the properties. Castor oil is also considered as a "green polyol", so its use is encouraged over the use of other synthethic polyols.

[@deldarel]

5:50 the forbidden beer

[@officermeowmeowfuzzyface4408]

Try a mold release agent next time, before filling.

[@cavemann_]

"I also tried flattening it, but that didn't really work either, so I just resorted to smashing it." You sure are creative in applying violence :v

[@jacobcasmus1882]

bro this is wild, you really think outside the box with your videos. great stuff!!!!!!!!

[@frogdude1337]

The way you explain it in order makes it sound like a cooking recipe

[@marialiyubman]

I love how the caffeine molecule looks like a sun. 😂

[@jakeyaboi6824]

6:30 I read “An anime group”

[@whythehelldoineedahandle]

I read ammonia

[@grotesmurfnewworldleader3164]

Nice editing in the hand-mixing part!

[@alllove1754]

I really like that you are finding your inner artistic self!

[@Rickenbacker954]

I ordered some lab stuff and chemicals from amazon and during my first experiment the FBI raided my garage. ;/

[@noaha8915]

What did you order lmao

[@kermit2.041]

@@noaha8915 that's irrelevant 👀👀

[@nkh9048]

dump lie for fame

[@Bob_Lob_Law]

Pics or it didn't happen.

[@hazy6932]

@@Bob_Lob_Law its a fucking joke

[@ThomasStephenForster]

FBI: Did you say RICIN?

[@thebe1azi500]

Hello, I just wanted to say that I find your videos fascinating and I was wondering would you do one on how to extract lactic acid?

[@prettysmart71]

I’ve done similar reactions. Polymer chemistry is pretty cool.

[@chronovore7234]

You never covered the other form of recycling

[@powderedwater4742]

5:43 looks like beer lol

[@versag3776]

You could add a release wax/agent to the mold to get a better quality impression. Also this could be great insulation, test thermal conductivity if you want.

[@S.ASmith]

As an injection moulder for PU (hard PU using an MDI based pre-polymer), you can use something like Ambersill PUR 400 Silicone Mould release which means you'll get clean removal for PU.