Abstract
Vulcanizates of natural rubber and natural rubber/polybutadiene rubber blends have been tested for fatigue resistance separately under flexing and tension, and the fracture surfaces studied using a scanning electron microscope. The fatigue resistance ranking of the vulcanizates is almost the same from both types of tests. However, the mode of fracture depends on the type of test. In flexing failure, the dimple structure observed in unfilled natural rubber was absent in the blends. The presence of carbon black filler causes brittle fracture in both natural rubber and the blends. In tension fatigue, the fracture surface of the unfilled vulcanizates shows two zones, a rough zone and a tear zone. Brittleness observed in the black-filled natural rubber vulcanizate was less prominent in the blends.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
