The Functional Properties Of Silver/Carbon Nanotube Hybrid Composites

Wan Saiful Bahrin, Wan Zulhilmi (2019) The Functional Properties Of Silver/Carbon Nanotube Hybrid Composites. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

Text (24 Pages) The Functional Properties Of SilverCarbon Nanotube Hybrid Composites.pdf - Submitted Version Download (278kB)

Abstract

This project investigates the functional properties of silver/carbon nanotube hybrid composites of electrically conductive adhesives (ECA). The multi-walled carbon nanotube are considered and the then filler loadings are varied at 5 wt.%, 6 wt.% and 7 wt.%, and the formulation was established using the Rule of Mixture for composites. For the electrical performance, six strips of the ECA was applied onto a 3-mm thick acrylic with dimensions of 45 mm (wide) and 88.9 mm (length) by using printing technique. The strip is 12.7 mm in lengthand 2 mm wide and were subjected to electrical test using a four-point probe test unit, with reference to ASTM F390-11.Theresult of four-point probe test reveals that the sheet resistance of the ECA decreased with an increase in the MWCNT filler loading due to enhanced formation of percolated linkages between MWCNT particles. Meanwhile, mechanical characterization was done via Lap shear test under tensile mode as per ASTM D1002-10 using a universal testing machine, with ECA nominal thickness of 0.1 mm and aluminum substrate with dimensions of 25.4 mm wide,101.6 mm length and 1.5 mm thick. The mechanical properties of ECA show an increase in shear strength with an increase MWCNT filler loading from 5 wt.% to 6 wt.% and decrease in shear strength with an increase of MWCNT filler loading from 6 wt.% to 7 wt.%. The sudden decrease of shear strength possibly because of the agglomeration that is formed at the conductive filler.

Actions (login required)

View Item