Study on Processing Properties of Epoxy Resin System in VARI

Chen Hui Zhao; Guang Cheng Zhang; Wei Min Sun; Ai Hua Shi

doi:10.4028/www.scientific.net/AMR.463-464.704

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 463-464Study on Processing Properties of Epoxy Resin...

Study on Processing Properties of Epoxy Resin System in VARI

Abstract:

As a low cost moulding technology, VARI is widely used to produce advanced composite materials. At the same time, the particularity of VARI process make it have particular requirements on resin system. Epoxy resin system attracts extensive attention because of its good process performance. Curing reaction and rheological behavior of epoxy resin system were studied by DSC and viscosity experiments. The results showed that resin viscosity decreased from 2600 mPa•S at 15°C to 600mPa•S at 40°C . Viscosity of resin system rose about 0.5Pa•s within the first 2h. Gel time shortened dramatically when the temperature exceed 60°C. the curing temperature is 60°C be based on DSC curve and gel time-temperature curve. Resin cast plate of epoxy resin system has good mechanical properties of compression strength.

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Periodical:

Advanced Materials Research (Volumes 463-464)

Pages:

704-707

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.463-464.704

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Online since:

February 2012

Authors:

Chen Hui Zhao, Guang Cheng Zhang, Wei Min Sun, Ai Hua Shi

Keywords:

Epoxy Resin (ER), Mechanical Property, Vacuum Assisted Resin Infusion (VARI), Viscosity

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