Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32020
Effect of Different Types of Nano/Micro Fillers on the Interfacial Shear Properties of Polyamide 6 with De-Sized Carbon Fiber

Authors: Mohamed H. Gabr, Kiyoshi Uzawa


The current study aims to investigate the effect of fillers with different geometries and sizes on the interfacial shear properties of PA6 composites with de-sized carbon fiber. The fillers which have been investigated are namely; nano-layer silicates (nanoclay), sub-micro aluminum titanium (ALTi) particles, and multiwall carbon nanotube (MWCNT). By means of X-ray photoelectron spectroscopy (XPS), epoxide group which defined as a sizing agent, has been removed. Sizing removal can reduce the acid parameter of carbon fibers surface promoting bonding strength at the fiber/matrix interface which is a desirable property for the carbon fiber composites. Microdroplet test showed that the interfacial shear strength (IFSS) has been enhanced with the addition of 10wt% ALTi by about 23% comparing with neat PA6. However, with including other types of fillers into PA6, the results did not show enhancement of IFSS.

Keywords: Sub-micro-filler, nano-composites, interfacial shear strength, polyamide.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1000


[1] Zhiqi Shen, Stuart Bateman, Dong Yang Wu, Patrick McMahon, Mel Dell Olio, Januar Gotama. The effects of carbon nanotubes on mechanical and thermal properties of woven glass fiber reinforced polyamide-6 nanocomposites. Composites Science and Technology 69 (2009): 239–244
[2] Mohamed H. Gabr, Nguyen T. Phong, Kazuya OKUBO, Kiyoshi Uzawa, Isao Kimpara, Toru FUJII. Thermal and mechanical properties of electrospun nano-cellulose reinforced epoxy nanocomposites. Polymer Testing 2014; 37: 51-58.
[3] Mohamed H. Gabr, Nguyen T. Phong, Mohammad Ali Abdelkareem, Kazuya Okubo, Kiyoshi Uzawa, Isao Kimpara, Toru Fujii. Mechanical, thermal, and moisture absorption properties of nano-clay reinforced nano-cellulose biocomposites. Cellulose 2013; 202: 819-826.
[4] Mohamed H. Gabr, Wataru Okumura, Hisai Ueda, Wataru Kuriyama, Kiyoshi Uzawa, Isao Kimpara. Mechanical and thermal properties of carbon fiber/polypropylene composite filled with nano-clay. Composites: Part B 2015; 69: 94–100.
[5] Mohamed H. Gabr, Kazuya Okubo, Mostafa Abd Elrahman, Toru Fujii. Effect of microfibrillated cellulose on mechanical properties of plain woven CFRP reinforced epoxy. Composite Structures 2010; 929: 1999-2006.
[6] R.B. Guan, Y.G. Yang, J.T. Zheng, F. He. The effect of sizing agents on CF/EP interfacial adhesion, Fiber Composites. 1 (2002) 23–26.
[7] X. Cao, Y.F. Wen, S.H. Zhang, Y.G. Yang,Aheat-resistant emulsifying sizing agent for carbon fibers, New Carbon Mater. 4 (2006) 337–342.
[8] N. Dilsiz, J.P. Wightman, Effect of acid–base properties of unsized and sized carbon fibers on fiber/epoxy matrix adhesion, Colloids Surf. A Physicochem. Eng. Aspects 164 (2000) 325–336.
[9] Y. Arao, S. Yumitori, H. Suzuki, T. Tanaka, K. Tanaka, T. Katayama (2013) Mechanical properties of injection-molded carbon fiber/polypropylene composites hybridized with nanofillers. Composites: Part A 55: 19–26