Premium
Synergistic effect of ZnO and TiO 2 nanoparticles on the thermal stability and mechanical properties of glass fiber‐reinforced LY556 epoxy composites
Author(s) -
Thipperudrappa Sridhar,
Hiremath Anupama,
Kurki Nagaraj Bharath
Publication year - 2021
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.26193
Subject(s) - materials science , composite material , flexural strength , ultimate tensile strength , thermal stability , fabrication , composite number , epoxy , ceramic , glass fiber , surface roughness , izod impact strength test , medicine , physics , alternative medicine , pathology , quantum mechanics
Abstract The article discusses the fabrication, mechanical characterization, and heat resistance of nano ZnO‐TiO 2 ‐filled glass fiber‐reinforced LY556 epoxy composites, with focus on the synergistic effect of ZnO and TiO 2 nanofillers. The fabrication of the composite laminates is achieved by the addition of the nanofillers in different wt% ranging from 1 to 5 wt%. The composites are prepared using simple hand layup technique followed by curing under vacuum. The 3D atomic force microscopy scans indicated even distribution of the nanofillers up to 2 wt% loading. Severe agglomeration of the nanofillers is evident for 3 to 5 wt% loading. The surface roughness, microhardness, flexural strength, tensile strength, and impact strength of the composites indicate a relationship with dispersion, wt% loading, and the wettability of the nanofiller with the LY556. In general, it is found that the incorporation of hard nanofillers favored the improvement of impact strength to a greater extent compared to tensile and flexural strengths. Detailed analysis of the obtained mechanical property values favors an optimum 2 wt% incorporation of the selected nanofillers to obtain improvement in various strength values of the fabricated composites. The thermal stability of the fabricated composites improved through the incorporation of ceramic nanofillers.