| Mechanical behavior and nanofracture patterns in PP / short Glass fiber and PA 66/ short Glass fiber composites |
| Paper ID : 1532-UFGNSM-FULL |
| Authors: |
|
Nima Khademian *1, Mina Asiabi2, Davood Vahidi3 1Iran, Tehran, SAPCO 2Khajeh Nasir Toosi University of Technology (KNTU) 3Head of quality control |
| Abstract: |
| In recent years, short fiber reinforced thermoplastics (SFRP) are used in a variety of structural applications, the main advantages of this materials being high strength to weight ratios and ease of processing. Composites of polyamide 66 and polypropylene have been prepared using short glass fibers (SGF) by injection molding process. The purpose of this work is to compare mechanical properties of two type of composite matrices, both reinforced by short glass fibers which is 30 wt%. The effect of matrix on mechanical properties of composites was analyzed by uniaxial tensile test, impact test and hardness test. The fracture surface has been observed through stereo optical microscope and scanning electron microscope (SEM) techniques and has shown that shear failure at the fiber / matrix interface and nanopatterns on fracture surface. Failure mechanisms of both composites are discussed and the effect of glass fiber on the mechanical properties, fracture surface morphology and nanostructure of interface was also described. The composites were investigated using Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC) and Transmission electron microscope (TEM). PA 66 / SGF composite exhibits more improvement in its mechanical strength and toughness compared to the PP / SGF. Finally, the PA 66 / SGF composites were successfully applied in gears, bearings, pulley and power tool housing for automotive parts. |
| Keywords: |
| Polyamide composites, polypropylene composites, mechanical properties, fractography, Nanopatterns, fracture toughness. |
| Status : Paper Accepted (Poster Presentation) |
