عنوان البحث(Papers / Research Title)
A study of some mechanical properties of Iraqi palm fiber-PVA composite by ultrasonic
الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)
احسان ضياء جواد البيرماني
Citation Information
احسان,ضياء,جواد,البيرماني ,A study of some mechanical properties of Iraqi palm fiber-PVA composite by ultrasonic , Time 11/17/2011 9:52:09 PM : كلية التربية للعلوم الصرفة
وصف الابستركت (Abstract)
The PVA-Palm fiber composite polymer membranes were prepared by sol-gel casting method
الوصف الكامل (Full Abstract)
European Journal of Scientific Research ISSN 1450-216X Vol.61 No.2 (2011), pp. 203-209 © EuroJournals Publishing, Inc. 2011 http://www.eurojournals.com/ejsr.htm A Study of Some Mechanical Properties of Iraqi Palm Fiber-PVA Composite by Ultrasonic Abdul-Kareem J. Rashid Physics Department, College of Science, Babylon University E-mail: dr.Abdulkaream@yahoo.com Ehssan Dhiaa Jawad Physics Department /College of Education Ibn Hayyan, Babylon University E-mail: ehssan_zah@yahoo.com Burak Y. Kadem Physics Department, College of Science, Babylon University E-mail: burakwh@yahoo.com
Abstract
The PVA-Palm fiber composite polymer membranes were prepared by sol-gel casting method with different ratios of concentration, in order to study the mechanical properties of these composite ultrasonic measurements of variable frequencies (25,30,35,40,45 and 50 kHz) were performed , these properties are ultrasonic velocity ,density ,compressibility ,specific acoustic impedance ,relaxation time, relaxation amplitude , bulk modulus, shear viscosity ,absorption coefficient and transmittance. Results shows that all these properties were decreasing with concentration of palm fiber in composite ; so palm powder keep the degradations polymer chain isolated and their roots not interact again to forming entanglement interactions, this reason made these vales reduced except that scattering were dominant so we pointed that this composite more effective to reflect and scattered ultrasonic waves. Keywords: PVA composite; ultrasonic method; mechanical properties; sol-gel method.
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