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

PDF

___

1. Leal A., Deitzel J.M., McKnight S.H., Gillespie J. W., Interfacial behavior of high performance organic fibers, Polymer (50), 2009, pp. 1228–1235.
2. Xi M., Li Y., Shang S., Li D., Yin Y., Dai X., Surface modification of aramid fiber by air DBD plasma at atmospheric pressure with continuous on-line processing, Surface and Coatings Technology, 202 (24), 2008, pp. 6029–6033.
3. Jia, C., Chen, P., Wang, Q., Li, B., Chen, M., Surface wettability of atmospheric dielectric barrier discharge processed Armos fibers, 258 (1), 2011, pp.388-393
4. Wu J., Cheng X. H., The Effect of Surface Treatment of F-12 Aramid Fibers with Rare Earths on The Interlaminar Shear Strength of Aramid/Epoxy Composites, Mechanics of Composite Materials, 41( 2), 2005, pp. 181-186.
5. Gu, R., Yu, J., Hu, C., Zhu, J. et al., Surface treatment of para-aramid fiber by argon dielectric barrier discharge plasma at atmospheric pressure, Applied Surface Science, 258 (24), 2012, pp. 10168-10174
6. Ozdogan E., Demir A., Karahan A., et al., Effect of Atmospheric Plasma on Printability of Wool Fabrics, Tekstil ve Konfeksiyon, 2, 2009, pp.123-127.
7. Kocum C, Ayhan H., Design and construction of uniform glow discharge plasma system operating under atmospheric condition, Rev Sci Instrum 78(6), 2007, Article number 063501
8. Perincek S., Duran K., Körlü A.E., Combination of Ozonation and Hydrogen Peroxide Bleaching for Linen Fabrics: Optimization of the Process Using Experimental Design Technique Ozone: Science & Engineering, 35( 4), 2013, pp. 316-327
9. Karahan H.A., Ozdogan E., Improvements of surface functionality of cotton fibers by atmospheric plasma treatment , Fibers and Polymers, 9( 1),2008, pp.21-26.
10. Lima M, Hes L, Vasconcelos R, Martins J, Frictor Q. Accessing fabric friction with a novel fabric surface tester, Autex Research Journal 5(4), 2005, pp.194– 201.
11. Liu L., Jiang q., Zhu t.,et al.,Influence of Moisture Regain of Aramid Fibers on Effects of Atmospheric Pressure Plasma Treatment on Improving Adhesion with Epoxy. Journal of Applied Polymer Science, 102, 2006, pp. 242–247.
12. Poncin-Epaillard F., Chevet B., Jean-Claude B., Study of an Aramid Surface Reactivity: Modification with a Cold Plasma or an Electron Beam Followed by a Postgrafting Reaction, Journal of Applied Polymer Science, 52, 1994, pp.1047-1061.
13. Demir A, Seki Y, Bozaci E, Sarikanat M, Erden S, Sever K, et al. Effect of the atmospheric plasma treatment parameters on jute fabric: the effect on mechanical properties of jute fabric/polyester composites. J Appl Polym Sci, 121(2), 2011,pp. 634–638.
14. Coffey, A. B., O’Bradaigh, C. M.; Young, R. J. J , Interfacial stress transfer in an aramid reinforced thermoplastic elastomer, Journal of Mater Science, 42(19),2007, pp. 8053-8061.
15. Park, S. J.; Seo, M. K.; Lee, J. R., Effect of Fiber-Polymer Interactions on Fracture Toughness Behavior of Carbon Fiber-Reinforced Epoxy Matrix, J Colloid Interface Science, 268(1), 2003, pp.127-130.
16. Widodo M., Plasma Surface Modification of Polyaramid Fibers for Protective Clothing, Ph.D. Dissertation, NCSU, 2011
17. Yanyan Chu, Xiaogang Chen, David W Sheel and John L Hodgkinson, Surface modification of aramid fibers by atmospheric pressure plasma-enhanced vapor deposition, DOI: 10.1177/0040517513515311