Toughening epoxy resins by liquid crystalline polymers
- 10 March 1992
- journal article
- Published by Wiley in Journal of Applied Polymer Science
- Vol. 44 (8) , 1465-1471
- https://doi.org/10.1002/app.1992.070440816
Abstract
Toughening epoxy resins can be achieved by blending a low percentage of Liquid Crystalline Polymer with the thermoset. The processing technique consists of the spinning of blends of a thermoplastic (Ardel) with the LCP (PET/PHB60). The bundled filaments are subsequently dissolved in the uncured epoxy resin (Epon 825). After curing, the LCP phase separates from the matrix in the form of microfibers with a very high aspect ratio, which act as crack stoppers and improve fracture toughness of the material.Keywords
This publication has 7 references indexed in Scilit:
- Toughening mechanisms in elastomer-modified epoxiesJournal of Materials Science, 1986
- Phase behavior of polyarylate blendsJournal of Applied Polymer Science, 1985
- Phase separation in epoxy resins containing polyethersulphonePolymer, 1983
- Morphology and toughness characterization of epoxy resins modified with amine and carboxyl terminated rubbersPolymer, 1982
- Compositional Variation of Glass-Transition Temperatures. 2. Application of the Thermodynamic Theory to Compatible Polymer BlendsMacromolecules, 1978
- Relationship between structure and mechanical properties in rubber‐toughened epoxy resinsBritish Polymer Journal, 1978
- Liquid crystal polymers. I. Preparation and properties of p‐hydroxybenzoic acid copolyestersJournal of Polymer Science: Polymer Chemistry Edition, 1976