THE EFFECT OF GRAPHENE NANOPARTICLES ON THE  MECHANICAL PROPERTIES OF WOVEN ARAMID/EPOXY  COMPOSITES

Ömer Şen; Musa Yıldırım

Makale detayları

THE EFFECT OF GRAPHENE NANOPARTICLES ON THE MECHANICAL PROPERTIES OF WOVEN ARAMID/EPOXY COMPOSITES

Yazarlar:

Ömer Şen | Musa Yıldırım

Yayıncı:

Duzce University

Ana Başlıklar:

Malzeme Tasarım ve Davranışları

Dergi:

Düzce Üniversitesi Bilim ve Teknoloji Dergisi Vol.13 Issue 1, pp.402-411

Belge Tipi:

Makale

Yayın Tarihi:

1/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001339873

pISSN:

2148-2446

Anahtar kelimeler:

Özet:

 In this study, the effect of the amount of graphene added to aramid fiberepoxy composites on the mechanical properties of these composites was investigated. In the study, graphene nanoparticles were added to the epoxy matrix at four different rates and mixed by mechanical methods, and then 5-layer aramid epoxy graphene composite plates were obtained using hand lay-up and vacuum infusion methods. Samples were cut from these composite plates according to ASTM 790 for bending test and ASTM D3039 for tensile test and three-point bending and tensile tests were performed. Microstructure examinations were carried out under a macro microscope. After the studies, it was observed that agglomeration occurred in the microstructures of the produced composites. It was determined that graphene added to the aramid epoxy composite increased the bending strength and bending modulus, the highest bending stress was observed in the samples with 1 graphene added. The flexural strength, which compared to the undoped composite, increased about 64  in this sample. In addition, the highest tensile strength was measured in the undoped sample, and after the 0.25 graphene addition, the tensile strength decreased due to the agglomeration of graphene that occurred in the structure.

 In this study, the effect of the amount of graphene added to aramid fiberepoxy composites on the mechanical properties of these composites was investigated. In the study, graphene nanoparticles were added to the epoxy matrix at four different rates and mixed by mechanical methods, and then 5-layer aramid epoxy graphene composite plates were obtained using hand lay-up and vacuum infusion methods. Samples were cut from these composite plates according to ASTM 790 for bending test and ASTM D3039 for tensile test and three-point bending and tensile tests were performed. Microstructure examinations were carried out under a macro microscope. After the studies, it was observed that agglomeration occurred in the microstructures of the produced composites. It was determined that graphene added to the aramid epoxy composite increased the bending strength and bending modulus, the highest bending stress was observed in the samples with 1 graphene added. The flexural strength, which compared to the undoped composite, increased about 64  in this sample. In addition, the highest tensile strength was measured in the undoped sample, and after the 0.25 graphene addition, the tensile strength decreased due to the agglomeration of graphene that occurred in the structure.

 In this study, the effect of the amount of graphene added to aramid fiberepoxy composites on the mechanical properties of these composites was investigated. In the study, graphene nanoparticles were added to the epoxy matrix at four different rates and mixed by mechanical methods, and then 5-layer aramid epoxy graphene composite plates were obtained using hand lay-up and vacuum infusion methods. Samples were cut from these composite plates according to ASTM 790 for bending test and ASTM D3039 for tensile test and three-point bending and tensile tests were performed. Microstructure examinations were carried out under a macro microscope. After the studies, it was observed that agglomeration occurred in the microstructures of the produced composites. It was determined that graphene added to the aramid epoxy composite increased the bending strength and bending modulus, the highest bending stress was observed in the samples with 1 graphene added. The flexural strength, which compared to the undoped composite, increased about 64  in this sample. In addition, the highest tensile strength was measured in the undoped sample, and after the 0.25 graphene addition, the tensile strength decreased due to the agglomeration of graphene that occurred in the structure.

 Bu çalışmada aramid fiber epoksi kompozitlere ilave edilen grafen miktarının bu kompozitlerin mekanik özelliklerine etkisi incelenmiştir. Çalışmada epoksi matris içerisine dört farklı oranda grafen nanopartiküller ilave edilerek mekanik yöntemle karıştırıldıktan sonra el yatırma ve vakum infüzyon yöntemleri kullanılarak 5 katlı aramid epoksi grafen kompozit plakalar elde edilmiştir. Elde edilen bu kompozit plakalardan eğme testi için ASTM 790 ve çekme testi için ASTM D3039 standartlara göre numuneler kesilerek üç nokta eğme ve çekme testleri yapılmıştır. Mikro yapı incelemeleri makro mikroskop altında yapılmıştır. Yapılan çalışmalar sonrasında üretilen kompozitlerin mikro yapılarında aglomerasyonun oluştuğu gözlemlenmiştir. Aramid epoksi kompozite ilave edilen grafenin eğilme dayanımı ve eğilme modülünü arttırdığı 1 grafen ilave edilen numunelerde en yüksek eğilme gerilmesi gözlenmiştir. Katkısız numunelere göre bu numunede eğilme mukavemeti yaklaşık 64 oranında artmıştır. Ayrıca çekme testleri sonrasında en yüksek çekme dayanımının katkısız numunelerde olduğu, 0.25 den daha fazla grafen ilave edilen numunelerde ise grafenin yapıda oluşturduğu aglomerasyona bağlı olarak çekme dayanımının düştüğü tespit edilmiştir.

Makale detayları

THE EFFECT OF GRAPHENE NANOPARTICLES ON THE MECHANICAL PROPERTIES OF WOVEN ARAMID/EPOXY COMPOSITES

Yazarlar:

Ömer Şen | Musa Yıldırım

Yayıncı:

Duzce University

Ana Başlıklar:

Malzeme Tasarım ve Davranışları

Dergi:

Düzce Üniversitesi Bilim ve Teknoloji Dergisi Vol.13 Issue 1, pp.402-411

Belge Tipi:

Makale

Yayın Tarihi:

1/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001339873

pISSN:

2148-2446

Graphene nanoparticles

Mechanical properties

Aramid fibers

Epoxy compositesGrafen nanopartikülleri

Mekanik özellikler

Aramid lifler

Epoksi kompozitler

Sayı

Makale detayları

Yazarlar: Ömer Şen | Musa Yıldırım

Yayıncı: Duzce University

Ana Başlıklar: Malzeme Tasarım ve Davranışları

Dergi: Düzce Üniversitesi Bilim ve Teknoloji Dergisi Vol.13 Issue 1, pp.402-411

Belge Tipi: Makale

Yayın Tarihi: 1/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001339873

pISSN: 2148-2446

Sayı

Yazarlar:

Ömer Şen | Musa Yıldırım

Yayıncı:

Duzce University

Ana Başlıklar:

Malzeme Tasarım ve Davranışları

Dergi:

Düzce Üniversitesi Bilim ve Teknoloji Dergisi Vol.13 Issue 1, pp.402-411

Belge Tipi:

Makale

Yayın Tarihi:

1/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001339873

pISSN:

2148-2446