Differential scanning calorimetry studies of the cure of carbon fiber–epoxy composite prepregs
| Autor: | C.M. Walkup, Tom H. Hoheisel, Roger J. Morgan |
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| Rok vydání: | 1985 |
| Předmět: |
Materials science
Polymers and Plastics Fibrous composites Composite number General Chemistry Epoxy Surfaces Coatings and Films Sulfone Catalysis chemistry.chemical_compound Differential scanning calorimetry chemistry Chemical engineering visual_art Materials Chemistry visual_art.visual_art_medium Sheet moulding compound Amine gas treating Composite material |
| Zdroj: | Journal of Applied Polymer Science. 30:289-296 |
| ISSN: | 1097-4628 0021-8995 |
| DOI: | 10.1002/app.1985.070300123 |
| Popis: | Diaminodiphenyl sulfone (DDS) cured tetraglycidyl-4,4'-diaminodiphenyl methane (TGDDM) epoxies, whose cure reactions are accelerated by BF3:amine catalysts, are the most common composite matrices utilized in aerospace high performance, fibrous composites. To process reproducible composites requires an understanding of the cure reactions and how these reactions are modified by the BF3:amine catalysts. In this article we report systematic differential scanning calorimetry (DSC) studies of (i) the constituents of BF3:NH2C2H5-catalyzed TGDDM–DDS epoxies and their mixtures, (ii) the effect of BF3:NH2C2H5 concentration on the cure reactions, (iii) the nature of the catalyzed cure reactions, and (iv) the environmental sensitivity of the catalyst. DSC studies are also reported on the cure reaction characteristics and environmental sensitivity of commercial C fiber–TGDDM–DDS epoxy prepregs. |
| Databáze: | OpenAIRE |
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