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Thermoset-resin-based prepregs are typically fabricated into advanced composite parts using autoclave cures of up to 12 h in duration. In general, these systems have acceptable handling characteristics but limited shelf-lives and out-times. Prepregs based on high-performance engineering thermoplastic resins, on the other hand, have better shelf-lives but are more difficult to handle and require very high (300°C) temperatures for fabrication. This paper describes the development of epoxy resin systems that offer the potential of extended shelf-life while curing at relatively low temperatures. These systems offer the user reductions in autoclave usage of 75% (or greater), the possibility of vacuum-bag fabrication and display some of the sought-after processing characteristics of a thermoplastic thermoset. In addition, neat resin characterization, rheology information and cure conditions are described.

Посилання на статтю:

Novel processing and cure of epoxy resin systems* / W. V. Breitigam and R. S. Bauer // Polymer. – 1993. – Vol 34. – P. 767-771.

Novel processing and cure of epoxy resin systems* - Завантажити.