Composite materials constituted by a modified polypropylene fiber and epoxy resin

• Published in: Journal of applied polymer science Vol. 73; no. 1; pp. 69 - 73
• Main Authors: Dutra, Rita C. L., Soares, Bluma G., Campos, Eunice A., De Melo, Josué D. G., Silva, José L. G.
• Format: Journal Article
• Language: English
• Published: New York John Wiley & Sons, Inc 05.07.1999; Wiley
• Subjects: Applied sciences; Composites; dynamic mechanical properties; epoxy matrix; Exact sciences and technology; Forms of application and semi-finished materials; polyblend fiber; Polymer industry, paints, wood; polypropylene fiber; Technology of polymers; Terpolymer; Polymer blends; Vinyl ester copolymer; Propylene polymer; Synthetic fiber; Fiber reinforced material; Epoxy resin; Mechanical properties; Experimental study; Sulfur copolymer; Composite material; Polymer filler interaction; Vinyl acetate copolymer; Dynamic mechanical properties; Ethylene copolymer
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/(SICI)1097-4628(19990705)73:1<69::AID-APP8>3.0.CO;2-5

A polyblend fiber constituted of polypropylene (PP) and an ethylene–vinyl acetate copolymer modified with mercapto groups was employed for the preparation of an epoxy resin‐based composite. This composite presented outstanding impact properties as compared to one prepared with unmodified PP fibers. Scanning electron microscopy indicated the existence of matrix‐modified PP fiber adhesion. The results obtained from dynamic mechanical analysis of these composites, such as damping values and the glass transition temperature, taken from the maximum damping temperature, confirm the existence of interfacial adhesion between the matrix and mercapto‐modified PP fiber. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 73: 69–73, 1999