| Summary: | Environmental effects like rain and temperature as well as the continuous heating phenomenon during device operation are the common factors that will degrade the mechanical and rheological performance of composite rubber materials like Magnetorheological elastomer (MRE) over the time. In this study, the morphological, and rheological properties of the unaged and aged MRE is examined. Two types of silicone rubber based MRE with 30 wt% of CIPs is investigated under the influence of continuous thermal ageing of 100°C for 3 days. Their morphological and rheological properties under the influence of frequency and magnetic field were evaluated using the low vacuum scanning electron (LV-SEM) and rheometer equipped with electromagnetic device. The results revealed that the storage modulus of aged MRE increased with the increment of frequency as compared to unaged MRE. While the MR effect of aged MRE decreased as compared to an unaged MRE. This finding not only provide a better understanding on the influence of thermal ageing phenomenon towards the rheological properties of the MRE but also can be used as an important information for the future device application in MRE. © 2024 American Institute of Physics Inc.. All rights reserved.
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