Vinyl silane-functionalized rice husk ash-reinforced unsaturated polyester nanocomposites

Abstract

Organic–inorganic hybrid nanocomposites based on vinyl silane-functionalized rice husk ash-reinforced unsaturated polyester resin were developed and characterized.

High performances unsaturated polyester based nanocomposites: Effect of vinyl modified nanosilica on mechanical properties

“…Obtained results indicate that impact and flexural properties increase with 1.0 wt% filler loading for both UPeN based nanocomposites [43]. The impact strength increase from 109 to 131% and from 108 to 113% for UPe1 and UPe2 based nanocomposites, while the flexural strength increase from 108 to 156% are due to best interfacial adhesion between filler and polymer matrix and indicate that the plasticizing effect of APTMS-BD moiety.…”

“…The side chains with 1,2dimethoxyethyl groups are short and oriented so that they cannot cause steric hindrance and hide the active sites on the modified silica surface. Kanimozhi et al [43] proved vinyl silane functionalized rice husk ash reinforcing effect on unsaturated polyester nanocomposites. They confirmed that the reinforced composites exhibited higher thermal and mechanical properties than neat UPe.…”

Surface free energy and dielectric properties of vinyltriethoxysilane functionalized SBA-15-reinforced unsaturated polyester nanocomposites

“…The surface functionalization of SBA-15 and VSBA-15 reinforced UP nanocomposites were developed using the procedure reported earlier [23,25] and the details of chemical reactions involved are resented in Scheme 1. …”

“…However, these materials are expensive when compared to that of UP resin. Many attempts have been made to improve the properties of unsaturated polyester resin using different reinforcements including rice husk based materials to enhance the properties [23]. However, still more improvements are required to exploit UP resin for high performance applications.…”

Silicone-modified graphene oxide fillers via the Piers-Rubinsztajn reaction

“…glass, silica, and metal oxides) species. [29][30][31][32][33] Significant improvement in mechanical performance of composites containing such fillers results when they are surfacemodified to provide enhanced compatibility and, in some cases, covalent bridges to the polymeric matrix. 27,29,34 For example, organosilanes/siloxanes have been employed to modify carbon-based materials, including carbon nanotubes, graphene, and graphene oxide.…”