Fatigue behavior of acrylic interpenetrating polymer networks. II
- 5 May 1990
- journal article
- Published by Wiley in Journal of Applied Polymer Science
- Vol. 39 (9) , 1933-1947
- https://doi.org/10.1002/app.1990.070390909
Abstract
Energy‐absorbing simultaneous interpenetrating networks (SINs) based in polyether‐type polyurethanes (PUs) and poly(methyl methacrylate) (PMMA) networks were prepared by a prepolymer procedure. The products are translucent and appear to have single and broad glass transitions, suggesting some degree of phase separation. The percent energy absorption determined from dynamic properties and pendulum impact tests, the resistance to fatigue crack growth and fracture toughness (K1c) all increase with polyurethane content. The fracture behavior changes from brittle to ductile failure with increasing PU. The fatigue fracture surfaces of the SINs show extensive stress whitening associated with cavitation around the polyurethane domains, and localized shear deformation rather than crazing.Keywords
This publication has 34 references indexed in Scilit:
- Fracture surface characteristics of unfilled thermosetsPolymer Engineering & Science, 1987
- Sound attenuation of interpenetrating polymer network foamsJournal of Applied Polymer Science, 1986
- Semi- and fully interpenetrating polymer networks based on polyurethane-polyacrylate systems. IX. Properties of an isomerically related interpenetrating networkJournal of Applied Polymer Science, 1986
- Semi‐ and fully interpenetrating polymer networks based on polyurethane‐polyacrylate systems. VIII. The influence of the degree of crosslinking of the second formed network on the morphology and properties of polyurethane polymethylacrylate interpenetrating polymer networksJournal of Applied Polymer Science, 1986
- Dynamic mechanical properties of some polyurethane‐acrylic copolymer interpenetrating polymer networksPolymer Engineering & Science, 1985
- Semi‐ and fully interpenetrating polymer networks based on polyurethane–polyacrylate systems. V. An isomerically related semi‐1‐interpenetrating polymer network systemJournal of Applied Polymer Science, 1984
- Semi‐ and fully interpenetrating polymer networks based on polyurethane–polyacrylate systems. II. Polyurethane–poly(methyl acrylate) semi‐1‐interpenetrating polymer networksJournal of Applied Polymer Science, 1983
- Polyurethane‐poly(methyl methacrylate) interpenetrating polymer networks: Some mechanical propertiesPolymer Engineering & Science, 1983
- Simultaneous interpenetrating networks based on castor oil elastorners and polystyrene. IV. Stress‐strain and impact loading behaviorPolymer Engineering & Science, 1979
- Interpenetrating Polymer NetworksAngewandte Chemie International Edition in English, 1978