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  #1 (permalink)
Old 6th December 2007, 10:14 PM
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I'm a Crazy materials Engineer
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Default an idea about processing polychloroprene?

Hey CEans,

do you have any idea about how we are obtaining polychloroprene sheets for wet suits (or neoprene) after having made the polymer?
I have found a website that describe a little how to do it, http://www.aceraft.com/mediapg/medapg32.html

They said : " Neoprene is often referred to as 'rubber' but it is actually a plastic. It begins as a powder called polychloroprene. To this base are added other ingredients that provide elasticity, foaming agents, cell size, colour (usually black), adhesion, bulk, plus other properties. This mixture is made into a dough which is plopped into a heated press. Under pressure and heat the mixture squishes out to make a sheet about 90" by 53"."

but I would like to know a little bit more: not what is added, it's a secret, I understand, but which pressure, temperature, how lob does it take...

It's for a project I have to do in my engineering school. I still have to do a part on a process.

Can you help me?
Thanks
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  #2 (permalink)
Old 7th December 2007, 12:16 AM
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Default Re: an idea about processing polychloroprene?

I would like to add: it's not spying, I just want to know what kind of reactions occurs in the heated press: is it a vulcanization? I want to be sure.
Moreover, I want to be sure it's really an emulsion polymerization that we do in industry.
Because I'm student it will be fine if I can add the name of somebody and the name of a company that helped me during my rapport, you probably know how teachers or professors like when you give some names, or greatings at the end of a rapport.
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