Hexagonal Boron Nitride Nanoplates-Nano Ag / Epoxy Composites: Production, Mechanical and Thermal Properties

Abstract

In this study, the production, mechanical and thermal properties of hexagonal boron nitride nanoparticles (hBNNPs) and different ratios (0.5, 1, and 1.5% by weight) of nano silver (Ag) particles epoxy based nanocomposites were investigated. Tensile specimens of epoxy based hybrid nanocomposites produced according to ASTM D638-10 were subjected to tensile test under constant crosshead speed. The maximum loads, tensile strengths, modulus of elasticity, toughness and elongation values ​​of the modified epoxy hybrid nanocomposites were calculated and these properties were compared with the reference sample. The reference sample and 0.5% by weight of BNNPs and 1% by weight of nano Ag particles reinforced nanocomposite the maximum loads were 1742.11 N and 2262.80 N respectively, 0.5BNNP+1NanoAg epoxy based nanocomposite was observed increase of 30%. The fracture surfaces of hybrid nanocomposites were examined by scanning electron microscopy (SEM) and the damage mechanisms were revealed. In addition, epoxy resin and BNNPs and nano Ag reinforced epoxy nanocomposites glass transition temperature, melting temperature, thermal decomposition temperature and mass loss, Thermogravimetric and Differential Thermal Analysis (TGA / DTA) were examined.

Keywords

• Epoxy,Mechanical properties

Hekzagonal Bor Nitrür Nanoplate-Nano Ag/Epoksi Kompozitler: Üretimi, Mekanik ve Termal Özellikleri

Abstract

Bu çalışmada, ağırlıkça % 0.5 Hekzagonal Bor Nitrür Nanoplateler (hBNNPs) ile ağırlıkça farklı oranlarda (% 0.5, 1 ve 1.5) nano gümüş (Ag) parçacıklı epoksi bazlı nanokompozitlerin üretimi, mekanik ve termal özellikleri araştırılmıştır. ASTM D638-10 standardına göre üretimi yapılan epoksi esaslı hibrid nanokompozitlerin çekme numuneleri sabit yük altında çekme testine tabi tutulmuştur. Modifiye edilmiş epoksi hibrid nanokompozitlerin maksimum yükleri, çekme dayanımları, elastiklik modülleri, toklukları ve uzama değerleri hesaplanmış olup, bu testin sonucunda bu özellikler referans numuneyle kıyaslanmıştır. Referans numune ile ağırlıkça % 0.5 oranındaki BNNPs ve ağırlıkça % 1 oranındaki nano Ag parçacık takviyeli nanokompozitin maksimum yükleri sırasıyla 1742.11 N ve 2262.80 N olup, 0.5BNNP+1NanoAg epoksi esaslı kompozit % 30 oranında artış gözlemlenmiştir. Hibrid nanokompozitlerin kırılmış yüzeyleri taramalı elektron mikroskopu (SEM) ile incelenerek hasar mekanizmaları ortaya çıkarılmıştır. Ayrıca epoksi reçine ile BNNPs ve nano Ag takviyeli epoksi nanokompozitlerin camsı geçiş sıcaklığı, ergime sıcaklığı, termal bozunma sıcaklığı ve kütle kaybı, Termogravimetri ve Diferansiyel Termal Analizleriyle (TGA/DTA) incelenmiştir.

Keywords

• Epoksi,Mekanik özellikler,Nanokompozitler,Nanoparçacıklar,Termal özellikler

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