Rubber material under specific test requirements during aging test

In the above, we explained the requirements of the test environment and test cycle of the vulcanized rubber material during the aging test. Let us explain it.

(1) Test water

The water used to adjust the humidity of the wet heat box or contact with the sample should be distilled water or deionized water with a pH of 6~7;

(2) Processing conditions before and after the test

1. Unless otherwise specified, the sample before the test shall be environmentally adjusted according to the relevant provisions of GB/T2941.

2. After the test, the sample can be processed according to the technical requirements of the product or the agreement of the relevant parties. Generally should be done as follows:

a. Direct evaluation of the moisture-containing sample, after taking it out from the damp heat test chamber, immediately place it in a closed container containing distilled or deionized water (the sample is not in contact with water), and in GB/T 2941 It is stipulated that the performance of the sample can be tested after 4 hours of treatment at temperature.

b. For samples with relative performance comparison, after exposure in the damp heat test chamber, the environment shall be adjusted according to the relevant provisions of GB/T2941 before the performance test is performed.

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橡胶材料在老化试验过程中的具体试验要求 下

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