KNT ilaveli PET/Cam elyaf takviyeli termoplastik kompozitlerin eğilme özelliklerinin araştırılması

Yıl 2024, Cilt: 13 Sayı: 3

Özgür Demircan Sara Sufyan Ahmed Mohamed Basem

https://doi.org/10.28948/ngumuh.1443069

Öz

Bu çalışma kapsamında, kıvrımsız kumaş (NCF) ile takviyeli hibrit kompozitler üretmek ve saf kompozitlerin mekanik özelliklerini iyileştirmek amacıyla çok duvarlı karbon nanotüpler (ÇDKNT'ler) (ağırlıkça yüzdeleri %0 ve %0.9) ve modifiye edilmiş ÇDKNT'ler (ÇDKNT-karboksilik asit (COOH)) (ağırlıkça yüzdeleri %0 ve %0.9) polietilen tereftalat (PET) termoplastik polimerine ve cam elyaf (GF) takviye elyaflarına ilave edilmiştir. NCF yapısına sahip takviye kumaşlarda 0° ve 90° yönlerinde yönlenmiş elyaflar bulunmaktadır. Üretilen kompozit numunelerinin mekanik özelliklerini belirlemek için 0° ve -45° yönlerinde hazırlanmış test numunelerine üç nokta eğme testleri yapılmıştır. Kompozitlerin mikro yapısı ve morfolojisi taramalı elektron mikroskobu (SEM) ve optik mikroskop (OM) kullanılarak incelenmiştir. ÇDKNT-COOH içeren numuneler, 0° yönünde ÇDKNT-COOH içermeyen numunelerle karşılaştırıldığında %58.6 eğilme modülü ve %14.4 eğilme mukavemeti artışıyla en yüksek eğilme özellikleri değerini sergilemiştir.

Anahtar Kelimeler

Karbon nanotüpler (KNT, Kıvrımsız kumaş (NCF), Polietilen tereftalat (PET), Termoplastik kompozitler, Eğilme özellikleri, SEM ve OM

Etik Beyan

Bu çalışmanın, özgün bir çalışma olduğunu; çalışmanın hazırlık, veri toplama, analiz ve bilgilerin sunumu olmak üzere tüm aşamalarından bilimsel etik ilke ve kurallarına uygun davrandığımı; bu çalışma kapsamında elde edilmeyen tüm veri ve bilgiler için kaynak gösterdiğimi ve bu kaynaklara kaynakçada yer verdiğimi; kullanılan verilerde herhangi bir değişiklik yapmadığımı, çalışmanın Committee on Publication Ethics (COPE)' in tüm şartlarını ve koşullarını kabul ederek etik görev ve sorumluluklara riayet ettiğimi beyan ederim.

Destekleyen Kurum

Bu araştırma Ondokuz Mayıs Üniversitesi araştırma fonu tarafından desteklenmiştir (PYO.MUH.1901.16.001 ve PYO.MUH.1901.18.008).

Proje Numarası

Bu araştırma Ondokuz Mayıs Üniversitesi araştırma fonu tarafından desteklenmiştir (PYO.MUH.1901.16.001 ve PYO.MUH.1901.18.008).

Teşekkür

Bu araştırma Ondokuz Mayıs Üniversitesi araştırma fonu tarafından desteklenmiştir (PYO.MUH.1901.16.001 ve PYO.MUH.1901.18.008).

Investigation of the effect of CNTs on the flexural properties of PET/Glass fiber integrated thermoplastic composites

Öz

Within this study, multi-walled carbon nanotubes (MWCNTs) (weight percentages were 0 and 0.9 wt %) and modified MWCNTs (MWCNTs-Carboxylic acid (COOH)) (weight percentages were 0 and 0.9 wt %) were incorporated into the thermoplastic polymer of polyethylene terephthalate (PET) and reinforcement fibers of the glass fiber (GF) to fabricate hybrid composites with non-crimp fabrics (NCFs) with higher mechanical properties compared to the pristine. NCF reinforcements had fibers which were laid in 0° and 90° directions. The three-point bending tests were performed to understand the mechanical properties of the fabricated composite samples in 0° and -45° directions. The micro-structure and morphology of the composites were studied by using a scanning electron microscope (SEM) and optical microscopy (OM). The specimens with MWCNTs-COOH exhibited highest value of flexural properties with an improvement of 58.6% flexural modulus and 14.4% flexural strength compared to the specimens without MWCNTs-COOH in 0° direction.

Anahtar Kelimeler

Carbon nanotubes (CNTs), Non-crimp fabric (NCF), Polyethylene terephthalate (PET), Thermoplastic composites, Flexural properties, SEM and OM

Proje Numarası

Bu araştırma Ondokuz Mayıs Üniversitesi araştırma fonu tarafından desteklenmiştir (PYO.MUH.1901.16.001 ve PYO.MUH.1901.18.008).

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