You want a materials' scientist or a glass/ceramic engineer.
Most chemists don't know anything about crystals or phase diagrams.
-
Martin

Apptech wrote:
> Hopefully someone will find this a trivially simple query to 
> answer. More related to electronics than rockets, but more 
> chemists on ARocket ... .
>
> If a sheet of Polycarbonate is heated to around it's glass 
> transition temperature as part of a heat laminating process 
> is this liable to have significant effects on its subsequent 
> mechanical properties compared to a sheet that was not 
> heated or one heated to say 100C. Temperature involved is 
> about 150 C which is very close to quoted glass transition 
> temperatures for PC. AF GT temp varies with rate of cooling 
> from melt it could be either side of 150C in a given case.
>
> It seems that this is not necessarily a bad thing [tm] but 
> nothing I've read tells me enough.
> An obvious starting point
>
>
>         http://en.wikipedia.org/wiki/Glass_transition_temperature
>
>
>
>             Russell
>
>
>   

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