Title: Assessment of Effects of Alumina Nanofibers on Wettability, Viscosity, and Mechanical Properties of Unsaturated Polyester
Authors: Harish S. P. Kallagunta, Subash Panta, Aziza Nahar and Jitendra S. Tate
Abstract: Increase in viscosity, poor wettability and agglomeration are the major issues when using nanoparticles to enhance the properties of polymeric materials. Processability of composites becomes challenging with the increase in the viscosity. A study has been made on the effects of alumina nanofiber modification on the viscosity and mechanical strength of unsaturated polyester resin. Additionally, wettability studies of the alumina nanofiber with unsaturated polyester resin using contact angle measurements were compared. Tension, Flexure and Izod impact tests were performed on 0.25wt%, 0.5wt%, 0.75wt% and 1wt% loading levels of alumina nanofibers in unsaturated polyester matrix and were compared to neat composites. Alumina nanofibers were dispersed in unsaturated polyester resin using three roll mills. Nanomodified and neat polyester coupons were cast in silicon molds according to the standards. TEM Images revealed good dispersion. Silane treatment proved to improve the homogeneity in dispersion and positively affect the viscosity. In terms of mechanical properties, silane treatment proved to be effective at lower loading levels. However, at higher loading levels, silane treatment was outperformed by untreated alumina nanofibers.
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Conference: SAMPE 2020 | Virtual Series
Publication Date: 2020/06/01
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