Rubber compositions for predicting the resistance of natural rubber to reversion, and test methods for predicting the resistance of natural rubber to reversion.
By utilizing specific proportions and synergistic effects in rubber compositions, interference from exogenous fatty acids is eliminated. Vulcanization characteristics are then tested using a conventional vulcanizer, addressing the safety risks and accuracy issues of existing testing methods. This enables efficient and accurate prediction of the reversion resistance of natural rubber to vulcanization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SAILUN GRP CO LTD
- Filing Date
- 2026-04-30
- Publication Date
- 2026-06-30
AI Technical Summary
Existing methods for detecting acetone extracts in natural rubber suffer from high safety risks, high waste liquid treatment costs, and low detection efficiency. Furthermore, when using standard formulations for detection, the presence of exogenous fatty acids can mask the true vulcanization reversion properties of natural rubber, resulting in poor detection accuracy.
A rubber composition is provided, comprising natural rubber, carbon black, zinc oxide, cobalt salt, adhesive resin, adhesive, vulcanizing agent, and vulcanization accelerator. After mixing, the vulcanization characteristics are tested on a conventional vulcanizer to calculate the vulcanization reversion rate, eliminate interference from exogenous fatty acids, maintain vulcanization stability by relying on endogenous lipids, and improve detection accuracy.
It has achieved efficient and accurate prediction of the reversion resistance of natural rubber without the need for acetone, established a highly reliable, low-cost, and green incoming quality control system, and improved the safety and efficiency of testing.
Smart Images
Figure CN122302388A_ABST