GB/T 40725-2021 specifies the test method for evaluating the peel adhesion performance of dipped cord to rubber, applicable to the testing of vulcanized adhesion between dipped cords made from fibers and rubber, with reference use for dipped yarns and cords. The standard defines requirements for specimen preparation, vulcanization treatment, test procedures, and data processing. It primarily employs CRE-type tensile testing machines, vulcanization molds, tension devices, and other instruments to conduct a 180° peel test at specified speeds. The peel force curve is recorded to calculate the peel force per single cord, while the rubber coverage on the cord surface is visually assessed. This provides a standardized basis for quality control of adhesion in related products.
| Status | Active | ||
|---|---|---|---|
| CCS | G47 | ICS | 83.140.99 |
| Release Date | 2021-10-11 00:00:00 | Implementation Date | 2022-05-01 00:00:00 |
