Effects of amine and anhydride curing agents on the VARTM matrix processing properties

被引:0
作者
Grimsley, BW [1 ]
Cano, RJ
Hubert, P
Loos, AC
Song, XL
Pipes, RB
机构
[1] NASA, Langley Res Ctr, Hampton, VA 23665 USA
[2] Old Dominion Univ, Norfolk, VA USA
[3] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA
[4] Univ Akron, Akron, OH 44325 USA
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中图分类号
T [工业技术];
学科分类号
08 ;
摘要
To ensure successful applications of composite structure for aerospace vehicles, it is necessary to develop material systems that meet a variety of requirements. The industry has recently developed a number of low-viscosity epoxy resins to meet the processing requirements associated with vacuum assisted resin transfer molding (VARTM) of aerospace components. The curing kinetics and viscosity of two of these resins, an amine-cured epoxy system, Applied Poleramic, Inc., VR-56-4((2)), and an anhydride-cured epoxy system, A.TA.R.D. Laboratories SI-ZG-5A, have been characterized for application in the VARTM process. Simulations were carried out using the process model, COMPRO(C) to examine heat transfer curing kinetics and viscosity for different panel thicknesses and cure cycles. Results of these simulations indicate that the two resins have significantly different curing behaviors and flow characteristics.
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页码:8 / 15
页数:8
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