Operating rules for determining anti-aging properties of vulcanized rubber by ozone aging test chamber

1. ozone aging test chamber Carefully check the appearance of the sample to ensure that the surface of the sample should be flat, smooth, clean and free of obvious impurities or compounding agents and other precipitates.

2. ozone aging test chamber Measure the initial properties (including thickness) of the sample first, then draw the gauge line of the sample with a paint that is harmless to the test, and then clamp the sample on the sample frame and stretch it to the required extension. Long rate. The samples of different formulations should not be in contact with each other, and the distance between the samples should be at least 5 cm. Coat the end of the specimen near the clamp with ozone-resistant paint or cover it with ozone-resistant material and use other methods to protect it and then leave it to stand still.

3. Open the ozone aging test chamber, adjust the temperature in the box to the specified test temperature, move the sample after stretching and standing into the test box, make the sample rotate in the box and treat it at a constant temperature (15min).