ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary The formation of β-cylindritic micromorphologic structure produced by pulling a Kevlar fiber from an isothermal crystallizing β-nucleated isotactic polypropylene melt (at Tc=133°C) has been studied by using polarized light microscope, phase contrast optical microscope, scanning electron and atomic force microscopes. The micrographs reveal a clearly interfacial shear zone, α-cylindrite, β-cylindrite and β-spherulites near the sheared layer. Some of the point-like β-nuclei was not originated from the surface of the interfacial shear zone. A modified model based upon the theory of shear-induced crystallization can explain the phenomenon of polymorphic structure and the boundary shape near the interface without assuming epitaxial growth.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s002890050392
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