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Synthesis of self‐assembled and porous nano titania‐graphene oxide hybrids for toughening the epoxy
Author(s) -
Jayan Jitha S.,
Saritha Appukuttan,
Deeraj B.D.S.,
Joseph Kuruvilla
Publication year - 2020
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.25696
Subject(s) - materials science , epoxy , graphene , composite material , triethoxysilane , oxide , fracture toughness , toughness , nano , porosity , hybrid material , nanotechnology , metallurgy
Nano titania (nTiO 2 ) aggregated graphene oxide (GO) hybrid nanostructures were successfully prepared by employing 3‐(Aminopropyl) triethoxysilane (APTES)‐modified nTiO 2 as precursor material. The resulting self‐assembled core‐shell hybrid structure was observed to have hierarchical porous structure with nTiO 2 forming the core and GO forming the shell in accordance with transmission electron micrographs. The mechanical properties of the hybrid composites were compared with that of individual GO and nTiO 2 loaded systems and improved performance was observed. The incorporation of the hybrid filler improved the fracture toughness of epoxy composites by about 200%, which is indeed significant. Hence, this novel approach of employing self‐assembled APTES modified nTiO 2 agglomerated GO hybrids as filler in epoxy was found to be beneficial in enhancing the toughness of epoxy.