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Conductive polymer composite material is increasingly applied in a variety of fields, and its related processing technology has been a focus of research and development. Regarding magnetic fiber, because the orientation and distribution of the fiber affect the electrical and mechanical properties of products, the control of fiber orientation and distribution has been regarded as a key technology. This study used magnetic-assisted injection molding to control the orientation of magnetic fibers during the melt-polymer filling process. A special mold containing a magnetic apparatus was simulated and designed. Its material and thickness of various spacing blocks as well as the optimal layout of magnets in the mold were determined. An actual mold with the same magnet layout was then manufactured accordingly, and the measured magnetic flux density was compared with simulated results. This study also examined the coupled effect of magnetic and flow fields on the orientation of nickel-coated carbon fibers, calculating the magnetic moment produced due to the influence of the magnetic field on the fibers when melt polymer flowed through various positions in the cavity during the filling process. The flow trajectories of the fibers, which were affected by the magnetic field, were also predicted.
|Title of host publication
|Materials Engineering and Nanotechnology
|Trans Tech Publications Ltd
|Number of pages
|Published - 2018
|3rd International Conference on Materials Engineering and Nanotechnology, ICMEN 2018 - Tokyo, Japan
Duration: 19 Jul 2018 → 21 Jul 2018
|Materials Science Forum
|3rd International Conference on Materials Engineering and Nanotechnology, ICMEN 2018
|19/07/18 → 21/07/18
- Conductive polymer composite material
- Magnetic-assisted injection molding
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