Half a croissant, on a plate, with a sign in front of it saying '50c'
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hi temp durable bubble wrap

Lightweight low cost high heat insulation material
  [vote for,

[edited from: teflon bubble wrap, following a 'bad science' remark from 8th (too brittle and no material works with teflon)]

For creating water heated LTA balloons or for other uses that you can propose.

It shouldn't break at 130 C.

It should be reinforced with other materials so that it can hold tension like Mylar or nylon bags.

pashute, Aug 10 2011

Hot vapor balloon (LTA) [pashute, Aug 11 2011]

Hot air balloon envelope http://en.wikipedia...ir_balloon#Envelope
Woven from synthetic fibres. [8th of 7, Aug 13 2011]


       You have any idea what material? I'll simply change the heading.
pashute, Aug 11 2011

       PVF or ETFE would be candidate materials; they're still thermoplastic fluoropolymers, but with better mechanical and physical properties for your application than PTFE.   

       The main barrier will be cost, and getting a blown-film bubble wrap manufacturing machine to work with the slightly more exotic feedstock.
8th of 7, Aug 11 2011

pashute, Aug 11 2011

       Blending in small quantities of aramid fibre would strengthen the material considerably, but would make the film blowing phase rather more difficult.   

       <// no material works with teflon //   


       Suggested edit: "there are no plasticisers for PTFE" >
8th of 7, Aug 11 2011

       I know I’m not supposed to say please here. But please someone tell me this is baked, and provide a link to where I can buy some.   

       In the mean time [+]bun[+].
j paul, Aug 11 2011

       [+] Don't they already use that for hot air balloons?
nickthird, Aug 13 2011

       No, hot air balloon envelopes are typically stitched together from shaped panels of woven fabric. It's a very fine, tight weave, and may have additional coatings for waterproofing and gas-tightness, but it's a woven material none the less, not a blown or extruded film.
8th of 7, Aug 13 2011


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