When the sample was subjected to high temperature for a long time before test, its co-continuous structure would be easily coarsened and disintegrated under the driving of interfacial tension.

• 试样在测试前长时间处于高温熔体状态时，其共连续结构很容易在界面张力的驱动下发生粗化和破碎，所以得到的共连续反而变窄。