h a l f b a k e r yA few slices short of a loaf.
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[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.
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]
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You have any idea what material? I'll simply change
the heading. |
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PVF or ETFE would be candidate materials; they're still thermoplastic fluoropolymers, but with better mechanical and physical properties for your application than PTFE. |
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The main barrier will be cost, and getting a blown-film bubble wrap manufacturing machine to work with the slightly more exotic feedstock. |
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Blending in small quantities of aramid fibre would strengthen the material considerably, but would make the film blowing phase rather more difficult. |
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<// no material works with teflon // |
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Suggested edit: "there are no plasticisers for PTFE"
> |
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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. |
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In the mean time [+]bun[+]. |
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[+] Don't they already use that for hot air balloons? |
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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. |
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