6533b855fe1ef96bd12b1107
RESEARCH PRODUCT
Aging of Nanosized ZnO Modified Polyoxymethylene Blends with Ethylene–octene Copolymer
Jānis GrabisRemo Merijs MeriAgnese GrigalovičaJānis ZicānsAndrey Aniskevichsubject
Materials sciencePolymers and PlasticsPolyoxymethylenePolymer nanocompositeGeneral Chemical EngineeringMaterials Science (miscellaneous)Nucleationchemistry.chemical_elementZinclaw.inventionchemistry.chemical_compoundchemistrylawUltimate tensile strengthMaterials ChemistryCopolymerOcteneCrystallizationComposite materialdescription
The influence of ethylene–octene copolymer and zinc oxide (ZnO) on structure and tensile stress–strain behavior of polyoxymethylene were investigated before and after ultraviolet weathering. Addition of ZnO considerably improved stress–strain characteristics of the ultraviolet-irradiation impaired composites. Crystallinities of ultraviolet-irradiated composites were affected by numerous competitive processes, including suppression of crystallization in the presence of multiple components in the system, nucleation induced by nanofiller, secondary crystallization and amorphization because of the chain scissions of the macromolecules. Addition of ZnO considerably improved stability of the composites, as testified by corresponding changes in the intensities of hydroxyl and carbonyl absorption peaks.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-04-01 | Polymer-Plastics Technology and Engineering |