| 摘要 |
<p>Disclosed is a porous PTFE membrane including a first porous surface and a second porous surface; and a bulk between the first porous surface and the second porous surface. The porous PTFE membrane has a pore rating between about 2 to about 50 nanometers, and each of the first porous surface and the second porous surface has about 1 or higher of a ratio of an unfused nodule area to a fused nodule area.</p> |
