按GB/T 1682-1994规定的方法测定了硫化压力、试样裁切方向对氟醚橡胶脆性温度的影响。结果表明:氟醚橡胶的脆性温度不仅与硫化压力有关, 而且与试样的裁切方向有关。一般情况下, 氟醚橡胶的脆性温度随着硫化压力的增大而略有上升, 其垂直压延方向的脆性温度比平行压延方向的脆性温度要低1～2 ℃,这说明氟醚橡胶具有压延效应。

In accordance with the test method of GB/T 1682-1994, the brittleness temperatures of fluoroether rubber with different vulcanize pressures and cutting directions were tested. The results showed that the brittleness temperatures of fluoroether rubber were not only affected by vulcanize pressures, but also affected by cutting directions. Generally, the brittleness temperatures of fluoroether rubber increased with vulcanize pressures of specimens, and the brittleness temperatures of fluoroether rubber in the vertical calender direction were lower 1-2 ℃ than those parallel to the calender direction. It suggested that fluoroether rubber had been orientation induced.