polymers
DESCRIPTION
Polymers. Prof. David Roylance Department of Materials Science and Engineering. Advice to Benjamin Braddock, 1967: “I’ve got one word for you, my boy: …”. MIT/DMSE. Plastics, my boy. MIT/DMSE. MIT/DMSE. Some polymer history – ca 1492Columbus (Priestly ca 1800) - PowerPoint PPT PresentationTRANSCRIPT
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PolymersProf. David Roylance
Department of Materials Science and Engineering
MIT/DMSE
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
Advice to Benjamin Braddock, 1967:
“I’ve got one word for you, my boy: …”
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MIT/DMSE
Plastics, my boy ...
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MIT/DMSE
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
![Page 4: Polymers](https://reader035.vdocuments.net/reader035/viewer/2022062222/56814e67550346895dbc05cb/html5/thumbnails/4.jpg)
MIT/DMSE
Some polymer history –• ca 1492 Columbus (Priestly ca 1800)
•ca 1839 Goodyear/Hancock
•ca 1930 Staudinger/Carouthers
•ca 1953 Watson/Crick
•ca 1955 Ziegler/Natta
•ca 1970 Kwolek
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MIT/DMSE
The Polymeric Solid State
Blow-molded HDPE milk bottle (recyclable)
Semicrystalline microstructure
Covalently-bonded long-chain hydrocarbon
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MIT/DMSE
Stiffness vs. Temperature
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MIT/DMSE
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
Molecular Orientation and Strength
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MIT/DMSE
Polyamides
Carouthers: nylon 66
Kwolek: aramid
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MIT/DMSE
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
Kevlar Fibers – a polyaramid
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MIT/DMSE
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
Modern Lightweight Personnel Armor
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MIT/DMSE
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
Panel and Bullet After Impact
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MIT/DMSE
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
Strain and Displacement in Fabric Layer
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MIT/DMSE
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
Vs-Vr Plot – Kevlar 29, Single Layer
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MIT/DMSE
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
1.
Committee on Materials Science and Engineering, National Research Council,
M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials
, National Academy Press, Washington, D.C., 1989.
Influence of Strength and Stiffness on V50
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MIT/DMSE