Macrostructure and Fracture Behaviour of Rice Husk and MWCNT Dispersion Strengthened Alkali Treated Banana Fiber Matrix Hybrid Composites

S. Ramu, N. Senthilkumar,Saravanan Rajendran

Materials Science Forum(2023)

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摘要
The mechanical properties of natural fiber composites reinforced with rice husk and multi-walled carbon nanotubes are studied. Two different mixing concentrations are prepared: 5 wt.% and 10 wt. % rice husk and 0.5 wt.% and 1.0 wt.% multi-walled carbon nanotubes incorporating with the constant reinforcing phases of the banana fiber is 10 wt.%. (Specimens: NBRME1 and NBRME2, where, N-NaOH; B-Banana fiber; R-Rice husk; M-MWCNT; E-Epoxy). The effect of surface treatment of banana fiber bundles is reacted with a 6% sodium hydroxide solution. The surface-treated reinforcement results indicated higher tensile, bending, and impact strength of the 0.5% MWCNT composite (43.96 MPa, 60.62 MPa, and 46.5 J/m) compared with 1% MWCNT composite. High-resolution optical macroscopic images are revealed a variety of defects, including interface behaviour, fiber stretching, fracture, cracking, and agglomeration. Biodegradable organic rice husk-based epoxy resin composite is valuable for manufacturing electronic parts, chips and circuits.
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