| 摘要 |
A method of heat treating an expanded polytetrafluoroethylene (ePTFE) membrane to improve the hydrostatic strength of the membrane includes: a. heating the ePTFE membrane to a temperature of about 400° C. for about 2 minutes; and b. cooling the ePTFE membrane at a temperature of 0-5° C. or at about 22-25° C. for about 5 minutes.
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