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Research Article

Investigating the effect of silica aerogel content on the mechanical properties of epoxy resin system

Hasan Yavuz Ünal1, Selay Sert Çok2, Fatoş Koç2, Nilay Gizli2, Yeliz Pekbey1

1Department of Mechanical Engineering, Ege University, Izmir, Turkey                                                 2Department of Chemical Engineering, Ege University, Izmir, Turkey                                                                                                                                              

Keywords

Abstract





Epoxy resin;


Silica aerogel;


Tensile strength;


Three-point bending




Nowadays, silica aerogels have been widely used in many applications due to their extremely low density, low thermal conductivity and high specific surface area. Many researchers have proved that the addition of the nanoparticles into thermoset polymers resin has influenced the mechanical properties of the composites. Epoxy resins are one of the mostly used thermoset polymers. Although they have superior mechanical strength, they are usually suffered from their fragile structure. There are several additives such as carbon nanotubes, nanoclay, calcite etc. that can be added to epoxy resins to enhance their mechanical properties such as tensile strength, modulus of elasticity, break strain. In this study, the silica aerogels were added as nano-fillers into epoxy to investigate the effect of the silica aerogel content on the mechanical performance of silica aerogel–epoxy composites. Two different silica aerogel–epoxy composites were produced with various silica aerogel content (0.5 and 1 wt. %) and effect of aerogel amount on the mechanical and structural properties of final nanocomposites was investigated. Silica aerogels used in the study were synthesized by traditional sol gel method to obtain versatile silica aerogel–epoxy composites. Apart from the classically synthesized silica aerogels, aerogels in the present study contain short chained ionic liquid (IL) as porogenic agents. The effect of the addition of the silica aerogel on the tensile and flexural properties of final composites were observed by the measurement of the tension and three-point bending tests, respectively according to ASTM standard. The results have shown that the mechanical behavior of the epoxy resin was significantly influenced by the silica aerogel addition. The mechanical strength of epoxy composite with silica aerogel addition was improved compared to that of the neat epoxy.   © 2019 MIM Research Group. All rights reserved.

LATEST News


21/02/2020 Collaboration for SET 2020: Editorial Board of our journal and Organizing Committee of the 19th International Conference on Sustainable Energy Technologies (SET 2020) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


25/12/2019 Most Cited Paper Award: The paper authored by Manoj Sahni and Sanjeev Sharma entitled as “Elastic-plastic deformation of a thin rotating solid disk of exponentially varying density" is awarded the 2019 Most Cited Paper Award of Research on Engineering Structures and Materials (RESM).

25/12/2019 Best Paper Award: The paper authored by Marcelo Mesquita do Amaral, Matheus Wanglon Ferreira and Mauro de Vasconcellos Real entitled as “A simplified method for analysis of reinforced concrete beams exposed to fire situation” is awarded the 2019 Best Paper Award of Research on Engineering Structures and Materials (RESM).


13/11/2019 Data articles as a new type of submision: Editorial Board of our journal have decided to accept a new type of submission: data articles. The focus of these papers is only on data and how it is collected but not on its interpretation and drawn conclusions. For more see News section.


(More details of the news may be given in the News section)


For more see News...

LATEST AWARDS


2019 Most Cited Paper Award:

The paper authored by Manoj Sahni and Sanjeev Sharma entitled as “Elastic-plastic deformation of a thin rotating solid disk of exponentially varying density" is awarded the


2019 Best Paper Award:

The paper authored by Marcelo Mesquita do Amaral, Matheus Wanglon Ferreira and Mauro de Vasconcellos Real entitled as “A simplified method for analysis of reinforced concrete beams exposed to fire situation” is awarded the 


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Last Update:

15.06.2020

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