Abstract
In an attempt to study the reaction kinetics of ethylene–propylene–diene (EPDM) rubber, using a noninvasive and nondestructive ultrasonic technique, several compounds varying with amounts of sulfur and accelerator were prepared. A relationship between the calibrated ultrasonic velocity and the change of molecular structure during vulcanization was investigated and described by an exponential equation. The resulting characteristic parameters, related to the cure degree and rate, were obtained through the data fitting. The experimental results showed that with the increase of content of sulfur and accelerator, the cure degree increased, but the reaction rate constant decreased.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.