Abrasive Wear on Natural Fiber Reinforced Graphene Nanoplatelets Filled Epoxy Matrix Composites

Abstract

In recent years, natural fiber reinforced composites have become an alternative to synthetic fiber reinforced composites in some areas due to their properties like low cost, biodegradability and lightness. In this study, abrasive wear tests were applied to jute fabric reinforced epoxy matrix composites filled with graphene nanoplatelets (GNPs) at different filling ratios (0, 0.5, 1, 2 wt.%), produced with vacuum assisted resin transfer molding (VARTM) method. Tribotests were carried out using a pin-on-disk type tribotest device on the counterface of 400 grit SiC emery paper with 5 N, 10 N and 15 N loads at a sliding speed of 1 m s-1 and a sliding distance of 200 m. In the tests carried out, the interface temperature and specific wear rate values were followed. It has been found that the specific wear rate is minimal at 1 wt.% GNPs filler and the interface temperature generally increases with increasing load.

Keywords

• Natural fiber reinforced polimer composite (NFRPC)
• grafen nanoplatelets (GNPs) filler
• abrasive wear

Doğal Elyaf Takviyeli Grafen Nanoplatelet Dolgulu Epoksi Matrisli Kompozitlerde Abrazif Aşınma

Abstract

Son yıllarda düşük maliyet, biyobozunurluk, hafiflik gibi özelliklerinden dolayı doğal elyaf takviyeli kompozitler bazı alanlarda sentetik elyaf takviyeli kompozitlere alternatif hale gelmiştir. Bu çalışmada, vakum destekli reçine transfer kalıplama (VDRTK) metodu ile üretilen jüt kumaş takviyeli ve farklı dolgu oranlarında (ağırlıkça % 0, 0.5, 1, 2) grafen nanoplatelet (GNP) dolgusu yapılmış epoksi matrisli kompozitlere abrazif aşınma testleri uygulanmıştır. Tribotestler pim-disk tipi tribotest cihazı kullanılarak 400 grit SiC zımpara kağıdı karşı yüzeyi üzerinde 5 N,10 N ve 15 N yüklerde 1m s-1 kayma hızında ve 200 m kayma mesafesinde gerçekleştirilmiştir. Yapılan testlerde ara yüzey sıcaklığı ve spesifik aşınma oranı değerleri takip edilmiştir. Spesifik aşınma oranının ağırlıkça %1 GNP dolgusunda minimum olduğu ve ara yüzey sıcaklığının genel olarak artan yük ile arttığı görülmüştür.

Keywords

• Doğal elyaf takviyeli polimer kompozit (DETPK)
• grafen nanoplatelet (GNP) dolgu
• abrazif aşınma

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