Aging is one of the main reasons for the deterioration of rubber properties. Due to the different formulations and use conditions of the products, the aging process varies quickly, so it is necessary to determine and evaluate through aging tests to assess the degree of rubber aging and its impact on performance. The aging test is the test method and the test method used to assess the change (generally the performance decline or deterioration) of the rubber performance after a certain period of time under external conditions.
Rubber Rings Wholesaler introduces commonly used rubber aging test methods as follows:
Oven heating aging test, referred to as the heat aging test is currently the most widely used method. The test equipment used is a heating oven. Heating temperature (commonly used as 70 and 100) and time (commonly used as 72, 144h) can be set. The test piece is hung on the rotating film rack in the box. After the test, take out the test piece, measure its performance, and compare it with the data before aging, calculate the aging coefficient, and measure the degree of loss. For example, if the tensile strength of a rubber compound before heat aging is 20 MPa, and after heat aging is reduced to 12 MPa, the aging coefficient is 0.6.