Interconnected interface enhanced electrical properties of graphite in bio-based epoxy from insulating to conductor composites
The fabrication and characterization of composite films of graphite/bioepoxy is disclosed. Thin films of ~0.1 mm thick are prepared using a simple solution mixing with mass proportion of 1/0.5 (biomonomer/Methylene Diphenyl Diisocyanate, MDI), upon differ treated graphite weight loading (5 wt.%, 10...
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| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7270/ http://eprints.uthm.edu.my/7270/1/Interconnected_Interface_Enhanced_Electrical.pdf |
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| Summary: | The fabrication and characterization of composite films of graphite/bioepoxy is disclosed. Thin films of ~0.1 mm thick are
prepared using a simple solution mixing with mass proportion of 1/0.5 (biomonomer/Methylene Diphenyl Diisocyanate,
MDI), upon differ treated graphite weight loading (5 wt.%, 10 wt.%, 15 wt.%, 20 wt.%, 25 wt.%, 30 wt.%) and drop casting
at room temperature. The morphologic study by FE-SEM shows a homogeneously dispersed and strong interface between
the graphite and the bioepoxy material. Ultraviolet-visible (UV-vis) spectrophotometer are performed to evaluate the
changes in adsorption spectra arising with the increasing of graphite weight loading (wt.%) into the bio-based matrix. An
eye opening I-V characteristic of the thin films where the percolation threshold occurs at higher graphite loading (20 wt.%,
25 wt.% and 30 wt.%) gives conductivity of 103-104 S/m. Whilst lower graphite loading (5 wt.%, 10 wt.% and 15 wt.%)
somehow need further discussion. The influence of graphite in bioepoxy materials is paramount as it across insulatingsemiconductor-conductor
applications. |
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