Effects of petroleum-based oils as dispersing aids on physicochemical characteristics of magnetorheological elastomers

Muhammad Zaki, Norizatie and Yunus, Nurul Azhani and Yusoff, Muhamad Shakir and Mazlan, Saiful Amri and Abdul Aziz, Siti Aishah and Izni, Nor Aziyatul and Bahiuddin, Irfan (2021) Effects of petroleum-based oils as dispersing aids on physicochemical characteristics of magnetorheological elastomers. Materials, 14 (22). pp. 1-22. ISSN 1996-1944

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Official URL: http://dx.doi.org/10.3390/ma14227026

Abstract

This paper investigated the effects of petroleum-based oils (PBOs) as a dispersing aid on the physicochemical characteristics of natural rubber (NR)-based magnetorheological elastomers (MREs). The addition of PBOs was expected to overcome the low performance of magnetorheological (MR) elastomers due to their inhomogeneous dispersion and the mobility of magnetic particles within the elastomer matrix. The NR-based MREs were firstly fabricated by mixing the NR compounds homogeneously with different ratios of naphthenic oil (NO), light mineral oil (LMO), and paraffin oil (PO) to aromatic oil (AO), with weight percentage ratios of 100:0, 70:30, 50:50, and 30:70, respectively. From the obtained results, the ratios of NO mixed with low amounts of AO improved the material physicochemical characteristics, such as thermal properties. Meanwhile, LMO mixed the AO led to the best results for curing characteristics, microstructure observation, and magnetic properties of the MREs. We found that the LMO mixed with a high content of AO could provide good compatibility between the rubber molecular and magnetic particles due to similar chemical structures, which apparently enhance the physicochemical characteristics of MREs. In conclusion, the 30:70 ratio of LMO:AO is considered the preferable dispersing aid for MREs due to structural compounds present in the oil that enhance the physicochemical characteristics of the NR-based MREs.

Item Type:Article
Uncontrolled Keywords:natural rubber, petroleum-based oi, physicochemical characteristics
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Malaysia-Japan International Institute of Technology
ID Code:95854
Deposited By: Yanti Mohd Shah
Deposited On:22 Jun 2022 09:43
Last Modified:22 Jun 2022 09:43

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