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Mechanical Characterization of Silicone Rubber with Quail Eggshells as Bio-Based Filler
Abstract:
The incorporation of natural fillers like eggshells in polymers has gain attention due to their potential capability to enhance some properties while providing possible cost savings. In this paper, quail eggshells were used as bio-based filler in silicone rubber and their effects on the mechanical properties were investigated. For the composite manufacturing, samples containing 4.8 wt.% (5 phr), 9.1 wt.% (10 phr) and 13 wt.% (15 phr) of crushed quail eggshells were manually prepared. The mechanical characterization tests considered are compression, tensile and hardness. Based from the results, the sample with 4.8 wt.% filler achieved the highest compressive strength of 2.79 MPa and hardness of 53.3 which correspond to improvements of about 11 % and 6 % as compared to the plain rubber, respectively. These enhancements can be associated with the good dispersion of the filler at lower loading. However, higher filler contents resulted to a decrease in mechanical properties which could be linked to the possible agglomeration of crushed eggshells and weak filler to matrix interaction caused by lack of surface treatment. Nevertheless, the improvements attained by adding quail eggshells at lower percentage in rubber can still make it an alternative filler to consider.
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73-78
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May 2026
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© 2026 Trans Tech Publications Ltd. All Rights Reserved
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