Flexural Behaviors of Nanoparticle Reinforced Epoxy Nanocomposites

EasyChair Preprint 6925

Abstract

Composite materials are defined as new generation engineering materials that are formed by the combination of two or more different material groups in macro dimensions. As a result of the combination of these two phases, the material properties emerge as a combination of the strong properties of the matrix and reinforcement phase. While the reinforcement phase added to the matrix phase often improves the properties of the matrix, it may cause a decrease in the mechanical properties in some cases. In such cases, the size of the reinforcement phase should be reduced to the nano level. In this way, new generation nanocomposite materials have been developed by adding nanoscale to the matrix phase. In this study, the flexural strength of nanoparticle reinforced epoxy nanocomposites was investigated. Bending tests of reinforced epoxy composite materials reinforced with 0.25% by weight Carbon Nanotubes (CNT) and 0.25%, 0.5, 0.75% by weight SiO2 nanoparticles were investigated according to ASTM D790 standards. Hexion MGS L160 was used as epoxy resin. The flexural strength of epoxy nanocomposites reinforced with hybrid nanoparticles, the modulus of elasticity, flexural strength, toughness and unit shape changes of epoxy resin were compared. According to the flexural test results, it was seen that the most suitable addition ratio was 0.25% SiO2 and 0.5% CNT, and the highest flexural strength was obtained as 138.42 MPa, with an increase of 80.88% compared to pure epoxy. It has been observed that there is a decrease in flexural strength values ​​at higher addition rates. Thanks to the reinforcement, an increase in flexural strength was observed compared to epoxy, while a decrease in unit strains was observed. There was an increase of 71.47% in the maximum loading amount.

Keyphrases: Epoksi, Eğilme testi, Nano Silisyum oksit, Nanokompozit, Çok Cidarlı Karbon Nanotüp

@booklet{EasyChair:6925,
  author    = {Kazım Tolga Çınar and Mürsel Ekrem},
  title     = {Flexural Behaviors of Nanoparticle Reinforced Epoxy Nanocomposites},
  howpublished = {EasyChair Preprint 6925},
  year      = {EasyChair, 2021}}