Development of Acrylonitrile Butadiene Rubber Composite with Improved Physico-Mechanical and Oil Resistant Properties by Incorporating Waste Egg Shell Powder as a Filler

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dc.contributor.authorSeneviratne, D.V.M.
dc.contributor.authorVitharana, V.H.P.
dc.contributor.authorWijesinghe, H.G.I.M.
dc.date.accessioned2021-02-25T05:33:14Z
dc.date.available2021-02-25T05:33:14Z
dc.date.issued2020
dc.description.abstractThe present study attempted to develop a high-performance oil-resistant rubber material based on acrylonitrile butadiene rubber (NBR) by incorporating waste eggshell powder (ESP) as a filler to be utilized in automobiles industry while reducing the commercial Carbon Black (CB) content. Since CB is obtained from petroleum resources, its manufacturing process is hazardous and cause environmental pollution. Thus, the use of calcium carbonate (CaCO3) is found as a remarkable way to replace the CB in the rubber compounds due to its non-toxic and environmentally friendly nature. Value addition to waste eggshells was one of the main aspects of this research. The effect of surface modified CaCO3 filler on the cure, mechanical and swelling properties of NBR composites with respect to CB was studied. Filler amount was kept constant at 45 phr. Only the ratio of CB: ESP was changed. Ten ratios of samples were prepared by varying filler amounts by 5 phr. The surface modification of CaCO3 was confirmed using Fourier transform infrared spectroscopy. Particle size having 3.05 μm CaCO3 was successfully obtained from eggshell powder. X-ray diffraction patterns proved that raw eggshell powder was chemically similar to commercial CaCO3. The vulcanizates were evaluated by rheological, physical, and mechanical characteristics. The cure times and scorch times were at an acceptable level. NBR composites with ESP loadings of 0, 5, 10, 15, 20 phr showed tensile strengths of 7-14 MPa, compression sets of 2.38- 5.49 %, hardness of 61 - 72 IRHD. Therefore, it can be deduced that NBR filled with surface modified eggshell powder has competed favorably with the standard CB. Replacing CB from ESP loadings of 5, 10, 15, 20 phr did not show a significant difference in physico-mechanical properties. Hence eggshell CaCO3 can be considered as one of the best conventional fillers suited for automotive applications with a high oil-resistant sealing material. Keywords: Calcium carbonate, Carbon black, Egg shell powder, Filler, Oil resistanceen_US
dc.identifier.isbn9789550481293
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/6088/proceeding_oct_08-450.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.relation.ispartofseries;International Research Conference
dc.subjectMaterials Sciencesen_US
dc.subjectMineral Sciencesen_US
dc.subjectMechanical Engineeringen_US
dc.titleDevelopment of Acrylonitrile Butadiene Rubber Composite with Improved Physico-Mechanical and Oil Resistant Properties by Incorporating Waste Egg Shell Powder as a Filleren_US
dc.title.alternativeInternational Research Conference 2020en_US
dc.typeOtheren_US
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