Journals / Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi / 2019 / Cilt: 25 - Sayı: 1

A comparison study on mechanical properties of PVC composites filled by graphene oxide (GO) and reduced graphene oxide (RGO)

Grafen oksit (GO) ve indirgenmiş grafen oksit (RGO) dolgulu PVC kompozitlerin mekanik özelliklerinin karşılaştırılması

Pages
43–48
Publication Date
2019-02-26
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The composite with RGO showed a higher microhardness value compared to that of the composite with GO, but the elongation at break of the composite with RGO decreased because RGO loading increased the brittleness of composite structure.

📌 3 Key Takeaways

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Objective & Hypothesis:Graphene derivatives (graphene oxide-GO, reduced graphene oxide-RGO, multi-layer grapheme-MLG, etc.) generally are considered to be extremely significant fillers to improve properties of polymer materials.
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Key Findings & Data:The composites at a high GO loading (1% wt.) and a low RGO loading (0.1% wt.) indicated a prominent improvement in the mechanical properties.
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Conclusion & Impact:The composite with RGO showed a higher microhardness value compared to that of the composite with GO, but the elongation at break of the composite with RGO decreased because RGO loading increased the brittleness of composite structure.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Grafen oksit (GO) · İndirgenmiş grafen oksit (RGO) · PVC kompozit

Abstract

Graphene derivatives (graphene oxide-GO, reduced graphene oxide-RGO, multi-layer grapheme-MLG, etc.) generally are considered to be extremely significant fillers to improve properties of polymer materials. In this work, the mechanical properties of the composites according to filler type and filler loading were investigated. The composites were prepared using GO, RGO as the fillers and polyvinyl chloride (PVC) as a matrix. The X-ray diffraction (XRD) studies on the composites showed that the GO and RGO layers well-dispersed in polymer matrix. The scanning electron microscopy (SEM) showed that the composite with RGO exhibited smooth and clean surfaces, but the surface images of the composite with GO showed highly porous morphology because of the good filler-matrix interaction. The composites at a high GO loading (1% wt.) and a low RGO loading (0.1% wt.) indicated a prominent improvement in the mechanical properties. When compared the unfilled PVC, the tensile strength of the composite with 1 wt.% loading of the GO and 0.1 wt.% loading of the RGO increased by 84% and 42%, respectively. The composite with RGO showed a higher microhardness value compared to that of the composite with GO, but the elongation at break of the composite with RGO decreased because RGO loading increased the brittleness of composite structure.

Özet

Grafen türevleri (grafen oksit-GO, indirgenmiş grafen oksit-RGO, çok tabakalı grafen-MLG vb.) polimer malzemelerin özelliklerini iyileştirmek için yüksek potansiyele sahip dolgu maddeleri olarak bilinmektedirler. Bu çalışmada kompozitlerin mekanik özelliklerinde ki değişim dolgu tipine ve dolgu miktarına göre incelenmiştir. Kompozitler, dolgu maddeleri olarak GO ve RGO, matriks olarak polivinil klorür (PVC) ile hazırlanmıştır. X-ışını kırınımı (XRD) sonuçları, GO ve RGO tabakalarının polimer matriksde homojen dağıldığını göstermiştir. Taramalı elektron mikroskobu (SEM) çalışmaları, RGO içeren kompozitin düz ve pürüzsüz, GO içeren kompozitin ise dolgu- matriks etkileşimi daha iyi olduğu için yüksek oranda gözenekli morfoloji sergilediklerini ortaya koymuştur. Yüksek GO (ağırlıkça %1) ve düşük RGO (ağırlıkça %0.1) içeren kompozitlerin mekanik özellikleri önemli bir iyileşme sergilemiştir. Dolgu maddesi içermeyen PVC’ye nazaran ağırlıkça %1 GO ve %0.1 RGO içeren kompozitlerin çekme mukavemetleri sırasıyla %84 ve %42 artmıştır. RGO ilavesi kompozit yapıyı rijitleştirdiğinden, RGO içeren kompozitler GO içeren kompozitlere kıyasla daha yüksek mikrosertlik ve daha düşük yüzde uzama değerleri sergilemişlerdir.

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Cite This Article

MİNDİVAN, F. (2019). A comparison study on mechanical properties of PVC composites filled by graphene oxide (GO) and reduced graphene oxide (RGO). Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 25 - Sayı: 1, 43–48. https://ajindex.com/articles/42234

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