Comments on: How is foam made? Polyurethane? http://www.nrfoam.org/polyurethane-foam/how-is-foam-made-polyurethane/ Wed, 17 Mar 2010 10:13:59 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: sbravosystems http://www.nrfoam.org/polyurethane-foam/how-is-foam-made-polyurethane/#comment-1346 sbravosystems Fri, 01 Jan 2010 01:01:59 +0000 http://www.nrfoam.org/polyurethane-foam/how-is-foam-made-polyurethane#comment-1346 Here is all you need to know dood. http://en.wikipedia.org/wiki/Polyurethane If you find words in there you dont understand, click them if theyre links, or search them on wiki. If it doesnt show up on wiki, search it on Yahoo! Death to google!<br><b>References : </b><br> Here is all you need to know dood.

http://en.wikipedia.org/wiki/Polyurethane

If you find words in there you dont understand, click them if theyre links, or search them on wiki. If it doesnt show up on wiki, search it on Yahoo! Death to google!
References :

]]> By: ymingy@sbcglobal.net http://www.nrfoam.org/polyurethane-foam/how-is-foam-made-polyurethane/#comment-1345 ymingy@sbcglobal.net Fri, 01 Jan 2010 00:32:59 +0000 http://www.nrfoam.org/polyurethane-foam/how-is-foam-made-polyurethane#comment-1345 Foam is made through the following process: A big pile of goop (usually in your case urethane monomers that will eventually become foam) sits there. What it is, is basically a very poor fuel. It's a bunch of unlinked hydrocarbons ready to release some of its energy. Then what happens is you start the chemical reaction somehow (either with catalyst, a small fire underneath it, or some other means depending on your monomers), and that gets a chain reaction going where the hydrocarbons break their original bonds and form new ones. This generates a bit of heat (which is why I said it's basically a crappy fuel), but instead of forming CO2 and water as a waste product, it produces so little heat that all it can do is fuse itself into a larger clump (hence poly-meaning multiple-mers). But as this reaction happens, some gas IS also released, whether it be steam, co2, (or an ozone depleting gas that was used to make surfboard foam). That's what causes the styrofoam to puff up as it hardens (kind of like baking bread). Actually, a lot like baking bread.<br><b>References : </b><br> Foam is made through the following process: A big pile of goop (usually in your case urethane monomers that will eventually become foam) sits there. What it is, is basically a very poor fuel. It’s a bunch of unlinked hydrocarbons ready to release some of its energy.

Then what happens is you start the chemical reaction somehow (either with catalyst, a small fire underneath it, or some other means depending on your monomers), and that gets a chain reaction going where the hydrocarbons break their original bonds and form new ones.

This generates a bit of heat (which is why I said it’s basically a crappy fuel), but instead of forming CO2 and water as a waste product, it produces so little heat that all it can do is fuse itself into a larger clump (hence poly-meaning multiple-mers).

But as this reaction happens, some gas IS also released, whether it be steam, co2, (or an ozone depleting gas that was used to make surfboard foam). That’s what causes the styrofoam to puff up as it hardens (kind of like baking bread). Actually, a lot like baking bread.
References :

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