What are the processes of high temperature test protective film?

Put the PE protective film into the high and low temperature test chamber. Low temperature parameter setting: high temperature 80, humidity 80%RH, time: 48hrs. High Temperature Setting Low temperature -30°C, humidity 80%RH, time: 48hrs.

Put the PE protective film into the high and low temperature test chamber.

Low temperature parameter setting: high temperature 80, humidity 80%RH, time: 48hrs.

High Temperature Setting Low temperature -30°C, humidity 80%RH, time: 48hrs.

What are the processes for testing PE protective film at high and low temperatures?

The PE protective film sample is folded into the finished state and placed into the high and low temperature test chamber with room temperature. The temperature in the test chamber gradually rises to the set temperature. When the temperature is adjusted to the set parameter, the test is continued for 48H.

The sample is disconnected from the power supply, and the temperature in the box is reduced to normal temperature and pressure within the range of normal test atmospheric conditions. Recover for two hours. All aspects of test products are tested. PE protective film samples should be placed into a high and low temperature test box with room temperature at unpacked, different points and normal working position. The temperature in the test chamber is gradually reduced to the set temperature, and when the sample reaches temperature stability, it is left for 2 hours, and then the power is turned on for 48 hours.

The PE protective film sample is disconnected from the power supply, the temperature in the box is reduced to normal temperature and pressure within the range of normal test atmospheric conditions, and the temperature in the box is increased to normal temperature and pressure within the range of normal test atmospheric conditions. Recover for two hours. All aspects of test products are tested.

After the test, the sample is taken into room temperature to recover at least 2H or more, and then the appearance and function of the sample are tested. The appearance of the product should be non-destructive, the function is normal, the white fog is not removed, the glue is not removed, and the wrinkles are not wrinkled. In this way, the PE protective film high and low temperature test process should be done according to the above steps.