Deformation of polyethylene oxide, nylon-11 and polyethylene terephthalate by rolling
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The tensile properties and structural changes in rolled polymers were studied for several systems, including: polyethylene oxide (PEO), nylon-11 and polyethylene terephthalate (PET). All showed tensile properties typical for rolled systems, i.e. increase in strength along the roll direction, and a corresponding decrease perpendicular to the roll direction. Wide angle X-ray diffraction showed that for PEO and PET the chains were aligned parallel to the roll direction. Molecular chains for nylon-11 are preferentially tilted from 20 to 25° to the roll direction at low deformation. This tilt decreased with increased rolling and the chains were aligned in the roll direction at high deformation. Nylon-11 and PET showed four-point patterns typical of such systems in the small angle X-ray region.
KeywordsPolymer Polyethylene Tensile Property Roll Direction Small Angle
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- 1.D. M. Gezovich and P. H. Geil, J. Mater. Sci. 6 (1971) 509.Google Scholar
- 2.Z. W. Wilchinsky, J. Appl. Polymer Sci. 7 (1963) 923.Google Scholar
- 3.I. L. Hay and A. Keller, J. Mater. Sci. 2 (1967) 538.Google Scholar
- 4.G. B. Dunnington and R. T. Fields, US Patent No. 3,354,023 (1967).Google Scholar
- 5.R. Bonart, Kolloid-Z. 213 (1966) 1.Google Scholar
- 6.C. D. Armeniades and E. Baer, J. Polymer Sci. in press.Google Scholar
- 7.D. M. Gezovich and P. H. Geil, unpublished data.Google Scholar
- 8.G. Yeh and P. H. Geil, J. Macromal Sci. (Phys.) B1 (1967) 251.Google Scholar