Undesirable Sudden Curing of Epoxy/Clay Nano-composites in VARTM Manufacturing Process
Publish place: 2nd International Conference on Composites: Characterization, Fabrication and Application
Publish Year: 1389
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
COMPOSIT02_025
تاریخ نمایه سازی: 24 مهر 1389
Abstract:
In this study, dependence of undesirable sudden curing of epoxy/organoclay nano-composites on mixing duration and moreover the effect of nanoclay on molding process in VARTM manufacturing process are investigated. Nanoclay was dispersed into resin in a 1%, 3% and 5% wt with ultrasonic. The final mixing duration of all suspensions was 5 and 15 minutes with speed of 1000 RPM. X-ray diffraction (XRD) tests indicate that these nanostructures are mostly in intercalated form. By increasing the nanoclay percentage, the rate of increase of viscosity increased and this caused the increase in molding time. The pressure drop at the inlet of vacuum pipe along with the increase of d-spacing of nanoclay in VARTM process (caused by the increase of mixing duration) lead to this phenomenon. In this paper this phenomenon is discussed.
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Authors
M. H. Pol
PhD student, Institute of Manufacturing Technology Research, ACECR, Ahvaz, Iran
F Hajiarazy
MSCStudent, Mechanical Engineering Department, Tarbiat Modares University
S.M.H Seyedkashi
PhD student, Institute of Manufacturing Technology Research
Gh Liaghat
Professor, Tarbiat Modares University
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