Date
2012-08-30Metadata
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Aufsatz
Relaxation properties of polyoxymethylene and ethylene–octene copolymer blend in solid and melt states
Abstract
Rheological properties of polyoxymethylene (POM) and ethylene–octene copolymer (EOC) in solid and melt states were investigated. Blends were prepared with a twin screw extruder at broad component wt-to-wt ratios (10, 30, 50, 70, 90 wt% of EOC). The morphology as well as calorimetric, rheological, and elastic properties of the blends were studied. The investigation showed that POM/EOC blends were heterogeneous in nature and had a broad phase transition region between 30 and 70 wt% of POM. Because during processing droplet breakup is enhanced for EOC-rich systems, respective blends show “better” morphology with smaller particle sizes. It was, however, observed that rheological and dynamic characteristics (such as storage E¢ and loss E² modules as well as shear elastic G¢ and viscous G² modules) were highly influenced by intrinsic incompatibility of POM and EOC. Besides, also the crystallization specifics of the investigated blends influenced their E¢ and E².
Citation
@article{doi:10.17170/kobra-202101182988,
author={Grigalovica, Agnese and Bartule, Madara and Zicans, Janis and Meri, Remo Merijs and Heim, Hans-Peter and Berger, Christian},
title={Relaxation properties of polyoxymethylene and ethylene–octene copolymer blend in solid and melt states},
journal={Proceedings of the Estonian Academy of Sciences},
year={2012}
}
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3000 Grigalovica, Agnese
3010 Bartule, Madara
3010 Zicans, Janis
3010 Meri, Remo Merijs
3010 Heim, Hans-Peter
3010 Berger, Christian
4000 Relaxation properties of polyoxymethylene and ethylene–octene copolymer blend in solid and melt states / Grigalovica, Agnese
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5550 {{Polyoxymethylene}}
5550 {{Copolymere}}
5550 {{Gemisch}}
5550 {{Rheologische Eigenschaft}}
5550 {{Dynamisches Verhalten}}
7136 ##0##http://hdl.handle.net/123456789/12425
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