Surface Modification Effect of Volcanic Ash Particles Using Silane Coupling Agent on Mechanical Properties of Polyphenylene Sulfide Composites
M.Ö. Boraa, O. Çoban a, S. Fidan a, T. Kutluk b and T. Sinmazçelik c
aKocaeli University, Faculty of Aeronautics and Astronautics, 41285, Kartepe-Kocaeli, Turkey
bKocaeli University, Department of Chemical Engineering, 41380, Umuttepe-Kocaeli, Turkey
cKocaeli University, Department of Mechanical Engineering, 41380, Umuttepe-Kocaeli, Turkey
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The surface treatment of volcanic ash particles with various concentrations (1-3-5% (v/v)) silane coupling agent (3-aminopropyltriethoxysilane (3-APTS)) having organic functional group was conducted. After surface treatment, polyphenylene sulfide (PPS) composite samples containing surface treated volcanic ash particles at two concentrations (10 and 15 wt%) were manufactured by twin screw extruder and injection molding machine. This study investigated the effect of surface modification on mechanical properties of two different concentrated volcanic ash/PPS composites. All tests were performed using a Shimadzu AG-X Universal Tester. Tensile and three point bending tests were carried out at a crosshead speed of 1 mm/min and 2 mm/min according to ISO 527-2 and ASTM D790 standards, respectively. During the experiments, the relation between the mechanical properties and surface treatment concentrations of silane agent on volcanic ash/PPS composites was determined as a function of tensile strength and modulus, flexural strength and modulus. Moreover, fracture surface morphologies of volcanic ash/PPS composite samples were observed by using a scanning electron microscopy.

DOI: 10.12693/APhysPolA.129.442
PACS numbers: 81.05.Qk