Abstract
The same ordinary electrolytic polymerization of plastic-type polymer solution is applicable to natural rubber, with its C=C bonds, if a magnetic field and a filler are added. With the application of a magnetic field and the magnetic responsive fluid known as magnetic compound fluid (MCF), we have clarified the enhancement of the electrolytic polymerization of NR-latex and the growth of the thickness of vulcanized MCF rubber that results from the addition of a magnetic field. The present new method of MCF rubber vulcanization is effective for use in haptic sensors, which are used widely in various engineering applications. In the previous report, part 1 of this study, we investigated many experimental conditions under mechanical approach for sensing: magnetic field strength; applied voltage; electrodes gap; mass concentration, and the ingredients of the MCF. In the present sequential report, part 2, we investigate many other effects on electrolytic polymerization by the same mechanical approach for sensing as in part 1: the Mullins effect; the Piezo effect; vibration; kind of electrode; atmospheric gas. In particular, we clarify that the voltage generates spontaneously in the MCF rubber and that the MCF rubber becomes a Piezo element. These effects on the electrolytic polymerization as well as the effects of the experimental conditions will be useful in engineering applications. By taking the above-mentioned parameters and effects into account, MCF rubber that is electrolytically polymerized with the aid of a magnetic field, the use of MCF as a filler, and doping, can be useful in haptic sensor applications. In particular, the effectiveness of the Piezo element can be shown.
Highlights
The development of conductive polymers has become popular, and the principle underlying it is well-known
With the application of a magnetic field and the magnetic responsive fluid known as magnetic compound fluid (MCF), we have clarified the enhancement of the electrolytic polymerization of NR-latex and the growth of the thickness of vulcanized MCF rubber that results from the addition of a magnetic field
When MCF rubber is utilized in a haptic sensor, more effects must be investigated apart from the parameters investigated in the previous report [5]
Summary
The development of conductive polymers has become popular, and the principle underlying it is well-known. The previous report, part 1 of this study, has investigated the effect of the detailed experimental conditions on this new method of electrolytic polymerization: the applied voltage and electric current; the magnetic field strength; the concentration of particles of the MCF; the electrodes gap; the ingredients of MCF rubber, etc. In the case of the vulcanization of MCF rubber, it was clarified that the effects of the experimental conditions are due to the correlation of the magnetic cluster and the electrolytic polymerization as shown in part 1 of this study [5]. Apart from the experimental conditions, the effects of other parameters in the ordinary electrolytic polymerization of plastic-type conductive polymer solutions, for example, the electrode material, atmospheric gas, and so on, should be investigated. These effects should be clarified in the present study
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