Lecture5_FiberTerminology_Properties

Lecture5_FiberTerminology_Properties - Polymer Composites...

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Unformatted text preview: Polymer Composites Polymer Fiber Terminology-Structure Dr. Anthony Brennan University of Florida Department of Materials Science & Engineering EMA 6166 Polymer Composites EMA 1 Agenda • • Overview of Terminology Fiberglass – Manufacture – Properties • Carbon Fibers – Manufacture • PAN • Pitch – Properties • High Tenacity Fibers – – • UHMWPE PA High Temperature Fibers EMA 6166 Polymer Composites EMA 2 of 72 Patterns • • Fiber (roving, yarn) Filamentary materials – – • Filaments – – • particulate-like aspect ratio: ~ 100 to 15,000 single crystal Particles – – • smallest element of fiber diameters < 25 micron (<0.001”) Whisker – – – • aspect ratio: length/diameter ~ 100 aspect for fibers for diameters 0.10 to 0.13 mm (0.004 to diameters 0.005”) 0.005”) Irregular (mined/milled) Regular (Microspheres) Woven – – – – – Combined fibers Knits Weaves Fill (Weft) Warp EMA 6166 Polymer Composites EMA 3 of 72 Fiber Terminology • • • • Filament/Fibril Fiber/Yarn/Roving Woven Roving Continuous Strand Continuous Roving Roving • Mat Roving • Flossing Yarns • Denier – gms per Denier 9000 meters of fiber/ 9000 yarn EMA 6166 Polymer Composites EMA 4 of 72 Fiberglass Manufacturing Adapted from Fiberglass Reinforcement, C.E. Knox, in Handbook of Composites, G. Lubin, Ed., van Nostrand Publications, p137 EMA 6166 Polymer Composites EMA 5 of 72 Adapted from Fiberglass Reinforcement, C.E. Knox, in Handbook of Composites, G. Lubin, Ed., van Nostrand Publications, p137 Fiberglass Manufacturing EMA 6166 Polymer Composites EMA 6 of 72 Fiberglass Compositions From Fiberglass Reinforcement, C.E. Knox, in Handbook of Composites, G. Lubin, Ed., van Nostrand Publications, p139 EMA 6166 Polymer Composites EMA 7 of 72 Adapted from Fiberglass Reinforcement, C.E. Knox, in Handbook of Composites, G. Lubin, Ed., van Nostrand Publications, p140 Fiberglass Properties EMA 6166 Polymer Composites EMA 8 of 72 Carbon Fiber Manufacturing Carbon EMA 6166 Polymer Composites 9 of 72 Carbon Fiber Properties Carbon Adapted from PK Mallick, Fiber-Reinforced Composites, 2nd Edition, Marcel Dekker 1993 EMA 6166 Polymer Composites 10 of 72 Carbon Fibers Carbon EMA 6166 Polymer Composites 11 of 72 SiCTiO2 Fibers EMA 6166 Polymer Composites EMA 12 of 72 Carbon Monofilament EMA 6166 Polymer Composites EMA 13 of 72 Ti B2 EMA 6166 Polymer Composites EMA 14 of 72 Nb2Be17 EMA 6166 Polymer Composites EMA 15 of 72 Boron Fiber EMA 6166 Polymer Composites EMA 16 of 72 Boron Fiber Production EMA 6166 Polymer Composites EMA 17 of 72 Summary • Glass fibers represent largest class 8 Glass commercial glass/ ceramic reinforcing phase phase • Carbon fibers are derived from either pitch Carbon or PAN (poly acrylonitrile) or • Boron fibers offer the highest thermal performance performance EMA 6166 Polymer Composites EMA 18 of 72 References • Fundamental Principles of Polymeric Materials, 2nd Fundamental Edition, Stephen L. Rosen, Wiley Interscience (1993) ISBN 0-471-57525-9 ISBN • Introduction to Physical Polymer Science, 2nd Introduction Edition, Lesley H. Sperling, Wiley Interscience (1992) ISBN 0-471-53035-2 ISBN • Polymer Science and Technology, Joel R. Fried, Polymer Prentice Hall PTR (1995) ISBN Prentice EMA 6166 Polymer Composites EMA 19 of 72 ...
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