Cycloolefin copolymer/fumed silica nanocomposites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F11%3A00351366" target="_blank" >RIV/61389013:_____/11:00351366 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Cycloolefin copolymer/fumed silica nanocomposites
Original language description
We prepared cycloolefin copolymer (COC)/fumed silica nanocomposites by melt compounding in order to study the effect of the filler dimensions (filler surface area) on the physical properties, with particular attention to their thermal, mechanical, and optical behaviors. Thermogravimetric analysis revealed a positive contribution of silica nanoparticles to the thermal degradation resistance of COC. Dynamic mechanical thermal analysis and quasi-static tensile tests of the nanocomposites evidenced a slightstiffening effect, proportional to the nanofiller surface area, without any reduction in the fracture toughness. The positive effect of the nanoparticles on the viscoelastic, creep and fracture behavior was related to the uniform dispersion of silica aggregates in the matrix. Ultraviolet?visible spectrometry measurements evidenced that the original transparency of neat COC was practically maintained after the addition of silica nanoparticles.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JI - Composite materials
OECD FORD branch
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Project
<a href="/en/project/GA106%2F09%2F1348" target="_blank" >GA106/09/1348: Synthesis and mechanical properties of nanocomposites with tailored organoclays</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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