| 摘要 |
A composition of tetrafluoroethylene/perfluoro(alkyl vinyl ether) having at least 4 wt.% perfluoro(alkyl vinyl ether) and a melt flow rate of no greater than 4 g/10 min, and 5 to 30 wt.% low molecular weight PTFE, has improved gas impermeability and also mechanical strength. |
