[time-nuts] temperature stability basics

J. Forster jfor at quik.com
Fri Nov 26 23:46:33 UTC 2010


Aren't the "space blankets" use in survival packs pretty much the same
stuff? The mylar-air space-mylar construction seems pretty rational, and
they are windproof.

-John

===============


> Hal Murray wrote:
>> namichie at gmail.com said:
>>> Find some closed cell polyethylene that is quite thin and some very
>>> light
>>> aluminium foil and you could make many layers.
>>
>> How about aluminized Mylar?
>>
>> If the many-reflective-layers idea really works, I'd expect somebody to
>> sell
>> foam built that way.  Why don't they?
>>
> Maybe demand is small for such a product?
>
> They do make thin metal/fabric multi layer stuff (for things like
> exhaust systems) where the fabric is something moderately refractory
> (fiberglass? ceramic wool?)
>
> And, for spacecraft (a very small volume application) look up
> "multilayer insulation" or MLI.
>
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