Mehmet SARIKANAT, Aslı DEMİR, Ebru BOZACI, Tülay GÜLÜMSER

AN ECOLOGICAL APPROACH FOR THE SURFACE MODIFICATION OF ARAMID FIBERS

Aramid lifleri yüksek kristalizasyon derecesi ve kimyasal inertliği, nedeniyle kompozit uygulamalarında lif-matriks adhezyonunu arttırmak için yüzey modifikasyonu gerekmektedir. Bu çalışmada, para-aramid lifleri aramid lifi ve epoksi reçine arasındaki adhezyonu arttırmak için farklı güçlerde plazma işlemi görmüştür. İşlem gören ve görmeyen kuımşaların yüzey morfolojileri taramalı elektron miksroskobu (SEM) ve Fourier Transform Infrared Spektroskopisi (FTIR) ile incelenmiştir. Kompozit adhezyon özelikleri, tabakalararası kayma mukavemeti (ILSS) ile analiz edilmiştir. Sonuçlar, argon plazma işleminin lif ve matriks arasındaki adhezyonu arttırmak için etkili ekolojik bir yöntem olduğunu göstermiştir

ARAMİD LİFLERİNİN YÜZEY MODİFİKASYONU İÇİN EKOLOJİK BİR YAKLAŞIM

Since aramid fibers have very high crystallization degree and high chemical inertness, the surface modification is needed to enhance the adhesion between fibers and matrix for the usage of composite applications. In the present study, para-aramid fibers were treated by atmospheric pressure plasma under various plasma powers to improve interfacial adhesion between aramid fiber and epoxy resin. The surface morphologies of untreated and treated fibers were investigated by scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Composite interfacial adhesion properties were determined by interlaminar shear strength (ILSS) using a short-beam bending test. Results indicated that argon plasma treatment was an effective method for improving interfacial adhesion between fiber and matrix with ecological treatment

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