Internal friction studies of particulate filled polypropylene
Internal friction of injection-molded polypropylene with various fractions of magnetite, barite, copper, talc, strontium ferrite and glass fibers was measured in the temperature range 170–425 K with frequencies of 0.1–100 Hz. Peaks of the α- and α′-relaxation were found while no peak of the β-relaxa...
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Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2006-12, Vol.442 (1), p.371-374 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Internal friction of injection-molded polypropylene with various fractions of magnetite, barite, copper, talc, strontium ferrite and glass fibers was measured in the temperature range 170–425
K with frequencies of 0.1–100
Hz. Peaks of the α- and α′-relaxation were found while no peak of the β-relaxation was detected. At high temperatures a drastic increase of the loss factor superposes the α′-peak. The crystallinity of the filled polypropylene varies in the range from 23% to 35%. The samples consist of α- and β-crystallites depending on the material and amount of filler. |
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ISSN: | 0921-5093 1873-4936 |
DOI: | 10.1016/j.msea.2005.12.086 |