US9249246B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9249246-B2 |
| Application number | US-201313860712-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 11, 2013 |
| Priority date | Apr 27, 2012 |
| Publication date | Feb 2, 2016 |
| Grant date | Feb 2, 2016 |
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The piezoelectric and barrier liner for a high-pressure storage vessel is made out of PVDF-TrFE copolymer and the amount of crystallinity in the liner material is over 30%, preferably 35% at least.
Opening claim text (preview).
What is claimed is: 1. A liner, wherein the liner comprises a PVDF-TrFE (poly(vinylidene fluoride-trifluoroethylene)) copolymer having a crystallinity of over 30%, wherein the PVDF-TrFE copolymer has been annealed for a time period of from 4 to 16 hours, the liner has a permeability ranging from 0 to 60 10 6 ·cm 3 ·cm/cm 2 ·s·Pa at a temperature ranging from 12 to 50° C., and a piezoelectric coefficient of the liner is above 15 pC/N. 2. The liner of clai…
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