TY - CONF
T1 - Cure behavior of a furan-based epoxy-amine thermosetting system for liquid molding applications
AU - Chu, Xi
AU - Hinton, Zachary
AU - Scala, John J.La
AU - Palmese, Giuseppe R.
N1 - Funding Information:
Research was sponsored by the Army Research Laboratory and was accomplished under Cooperative Agreement W911NF-16-2-0225. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Army Research Laboratory or the U.S. Government. The U.S.
Publisher Copyright:
© 2020 Soc. for the Advancement of Material and Process Engineering. All rights reserved.
PY - 2020
Y1 - 2020
N2 - This study investigates the cure behavior of a fully furan-based epoxy-amine network in an effort to help guide the process of preparing composites using vacuum assisted resin transfer molding process (VARTM). The resin system was cured stoichiometrically at room temperature, 60°C and 80°C. Gelation and vitrification times were obtained using NIR spectroscopy and oscillatory isothermal rheology measurements. A Time-Temperature-Transformation isothermal cure diagram was constructed to summarize these data. The furan-based system possesses a favorable processing window for VARTM. In particular, the viscosity of the system remains below 1000 cp for the first 2.4 h of isothermal room temperature cure, and gelation does not appear to occur at this temperature because it is preceded by vitrification.
AB - This study investigates the cure behavior of a fully furan-based epoxy-amine network in an effort to help guide the process of preparing composites using vacuum assisted resin transfer molding process (VARTM). The resin system was cured stoichiometrically at room temperature, 60°C and 80°C. Gelation and vitrification times were obtained using NIR spectroscopy and oscillatory isothermal rheology measurements. A Time-Temperature-Transformation isothermal cure diagram was constructed to summarize these data. The furan-based system possesses a favorable processing window for VARTM. In particular, the viscosity of the system remains below 1000 cp for the first 2.4 h of isothermal room temperature cure, and gelation does not appear to occur at this temperature because it is preceded by vitrification.
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M3 - Paper
AN - SCOPUS:85107409386
T2 - International SAMPE Conference and Exhibition 2020
Y2 - 1 June 2020 through 1 June 2020
ER -