Tensile behaviour and fracture characteristics of polydimethylsiloxane (PDMS) filled silica composites

Azmi, Mohd Azham and Yahya, S. M. and Ahmad, Sufizar and Taib, Hariati (2014) Tensile behaviour and fracture characteristics of polydimethylsiloxane (PDMS) filled silica composites. In: International Conference on X-Ray & Related Technique in Research and Industry (ICXRI2014), 11-13 August 2014, Johor Bahru, Johor.

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Abstract

The focus of this study is to investigate the mechanical properties and fracture behaviour of polydimethylsiloxane filled crystalline silica composites (PDMSJCS) via tensile test. The PDMSICS composites were fabricated by using casting method and cured at room temperature for 24 hours. Crystalline silica were filled into PDMS at composition of 2, 6, 10 wt%. The tensile properties of PDMS/2wt%CS showed that the tensile stress was improved by 4.3%. Fracture behaviour of the tested PDMSICS composites were characterized using Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) which used to determine the characteristic of fracture surface. Observation via SEM and AFM showed that the increment of filler in PDMS increased the tendency of the filler to be agglomerated and increase the surface roughness of PDMSJCS composites. Thus, this concludes that the agglomeration of fillers effect to the overall mechanical strength of the PDMSJCS is insignificant. However, the additions of fillers were proven to improve the strength of the composites.

Item Type:Conference or Workshop Item (Paper)
Subjects:Q Science > QD Chemistry
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
ID Code:5903
Deposited By:Normajihan Abd. Rahman
Deposited On:07 Apr 2015 12:40
Last Modified:07 Apr 2015 12:40

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