The Electromechanical Properties of Crosslinked Natural Rubber
The effect of electric field strength on the electromechanical property of crosslinked natural rubber for actuator was investigated in this research work. The physical and electrical properties of crosslinked natural rubber were measured at various crosslinking ratios under applying external electric field. The parallel plate melt rheometer was used to measure the storage modulus and loss modulus of crosslinked natural rubber. All experiments were conducted at linear viscoelastic regime, frequency range of 0.1–100 rad/s and percent strain of 1%. In an absence of applying electric field, the storage modulus increase with deceasing crosslinking ratio due to the higher amount of strand in the rubber gel. When the external electric field was applied, the storage modulus increases due to the electrostatic force between the crosslinking points. At every crosslinking ratios, the storage modulus is higher than loss modulus because of the solidity of materials. Thus this crosslinked natural rubber can be the low cost, good mechanical properties and high electroresponsive materials for artificial muscle applications.
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Document Type: Research Article
Publication date: December 1, 2013
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