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Preparation of silica‐decorated graphene oxide nanohybrid system as a highly efficient reinforcement for woven jute fabric reinforced epoxy composites
Author(s) -
AmirabadiZadeh Mahnaz,
Khosravi Hamed,
Tohidlou Esmaeil
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.49653
Subject(s) - materials science , composite material , graphene , epoxy , flexural strength , composite number , fourier transform infrared spectroscopy , oxide , fiber , chemical engineering , nanotechnology , engineering , metallurgy
In the current work, silica‐decorated graphene oxide (SiO 2 @GONPs) nanohybrids were used to reinforce the jute fiber/epoxy (JF/EP) composite. Tetraethylorthosilicate (TEOS) was utilized to prepare the SiO 2 @GONPs using a facial route. The results of Fourier‐transform infrared spectroscopy (FTIR), atomic force microscopy, and elemental X‐ray mapping confirmed the successful synthesis of SiO 2 @GONPs nanohybrids. Herein, the effects of SiO 2 @GONPs loading (0, 0.1, 0.3, and 0.5 wt%) on the mechanical behavior of the JF/EP composite were investigated with emphasis on the flexural and high‐velocity impact properties. The results revealed that reinforcement of matrix with 0.3 wt% SiO 2 @GONPs enhanced the flexural strength of the JF/EP composite by about 40%. The energy absorption capability and impact limit velocity of the 0.3 wt% SiO 2 @GONPs‐filled JF/EP composite were 61 and 28%, respectively, higher than those of the neat specimen. Compared to the untreated‐GONPs, the SiO 2 @GONPs nanohybrid demonstrated an evident superiority in improving the mechanical properties of the JF/EP composite at the same loading. Evaluation of the fracture surfaces of the multiscale composites revealed that the improved fiber‐matrix interfacial bonding was the basic mechanism of fracture in these specimens.