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Epoxy/Fluoroether Composites
- Source :
- NASA Tech Briefs. 9(3)
- Publication Year :
- 1986
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1986.
-
Abstract
- Composite materials made from unfilled and glass-fiber-reinforced epoxy toughened by copolymerization with elastomeric prepolymers of perfluoroalkyl ether diacyl fluoride (EDAF). Improved properties due to hydrogen bonding between rubber phase and epoxy matrix, plus formation of rubberlike phase domains that molecularly interpenetrate with epoxy matrix. With optimum rubber content, particle size, and particle shape, entire molecular structure reinforced and toughened. Improved composites also show increased failure strength, stiffness, glass-transition temperature, and resistance to water.
- Subjects :
- Materials
Subjects
Details
- Language :
- English
- ISSN :
- 0145319X
- Volume :
- 9
- Issue :
- 3
- Database :
- NASA Technical Reports
- Journal :
- NASA Tech Briefs
- Publication Type :
- Report
- Accession number :
- edsnas.19850000332
- Document Type :
- Report