Transparent PMMA/silica nanocomposites containing silica nanoparticles coating under supercritical conditions
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2013
Authors
Stojanović, Dušica B.Brajović, Ljiljana
Orlović, Aleksandar
Dramlić, Dragan
Radmilović, Velimir
Uskoković, Petar S.
Aleksić, Radoslav
Article (Published version)
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This work reports the preparation of PMMA/silica nanocomposites with high optical transparency and enhanced mechanical properties using a melt compounding method. The surface of SiO2 particles was modified with a gamma-methacryloxypropyltrimethoxy silane coupling agent in a supercritical carbon dioxide-ethanol mixture and by conventional procedure. Dispersion of silica nanoparticles in ethanol at low temperatures plays an important role in deagglomeration and dispersion of nanosilica, which leads to the optimal particle-matrix bonding in composites. The optimal mechanical and optical properties were found for composites loaded with 5 wt% silica nanoparticles treated under supercritical coating method.
Keywords:
Nanocomposites / Supercritical coating / Microhardness / Mechanical and optical propertiesSource:
Progress in Organic Coatings, 2013, 76, 4, 626-631Funding / projects:
- Predefined functional properties polymer composite materials processes and equipment development (RS-MESTD-Technological Development (TD or TR)-34011)
- Reinforcing of Nanotechnology and Functional Materials Centre (EU-FP7-245916)
DOI: 10.1016/j.porgcoat.2012.12.002
ISSN: 0300-9440
WoS: 000316425000015
Scopus: 2-s2.0-84874117165
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GraFarTY - JOUR AU - Stojanović, Dušica B. AU - Brajović, Ljiljana AU - Orlović, Aleksandar AU - Dramlić, Dragan AU - Radmilović, Velimir AU - Uskoković, Petar S. AU - Aleksić, Radoslav PY - 2013 UR - https://grafar.grf.bg.ac.rs/handle/123456789/535 AB - This work reports the preparation of PMMA/silica nanocomposites with high optical transparency and enhanced mechanical properties using a melt compounding method. The surface of SiO2 particles was modified with a gamma-methacryloxypropyltrimethoxy silane coupling agent in a supercritical carbon dioxide-ethanol mixture and by conventional procedure. Dispersion of silica nanoparticles in ethanol at low temperatures plays an important role in deagglomeration and dispersion of nanosilica, which leads to the optimal particle-matrix bonding in composites. The optimal mechanical and optical properties were found for composites loaded with 5 wt% silica nanoparticles treated under supercritical coating method. T2 - Progress in Organic Coatings T1 - Transparent PMMA/silica nanocomposites containing silica nanoparticles coating under supercritical conditions EP - 631 IS - 4 SP - 626 VL - 76 DO - 10.1016/j.porgcoat.2012.12.002 ER -
@article{ author = "Stojanović, Dušica B. and Brajović, Ljiljana and Orlović, Aleksandar and Dramlić, Dragan and Radmilović, Velimir and Uskoković, Petar S. and Aleksić, Radoslav", year = "2013", abstract = "This work reports the preparation of PMMA/silica nanocomposites with high optical transparency and enhanced mechanical properties using a melt compounding method. The surface of SiO2 particles was modified with a gamma-methacryloxypropyltrimethoxy silane coupling agent in a supercritical carbon dioxide-ethanol mixture and by conventional procedure. Dispersion of silica nanoparticles in ethanol at low temperatures plays an important role in deagglomeration and dispersion of nanosilica, which leads to the optimal particle-matrix bonding in composites. The optimal mechanical and optical properties were found for composites loaded with 5 wt% silica nanoparticles treated under supercritical coating method.", journal = "Progress in Organic Coatings", title = "Transparent PMMA/silica nanocomposites containing silica nanoparticles coating under supercritical conditions", pages = "631-626", number = "4", volume = "76", doi = "10.1016/j.porgcoat.2012.12.002" }
Stojanović, D. B., Brajović, L., Orlović, A., Dramlić, D., Radmilović, V., Uskoković, P. S.,& Aleksić, R.. (2013). Transparent PMMA/silica nanocomposites containing silica nanoparticles coating under supercritical conditions. in Progress in Organic Coatings, 76(4), 626-631. https://doi.org/10.1016/j.porgcoat.2012.12.002
Stojanović DB, Brajović L, Orlović A, Dramlić D, Radmilović V, Uskoković PS, Aleksić R. Transparent PMMA/silica nanocomposites containing silica nanoparticles coating under supercritical conditions. in Progress in Organic Coatings. 2013;76(4):626-631. doi:10.1016/j.porgcoat.2012.12.002 .
Stojanović, Dušica B., Brajović, Ljiljana, Orlović, Aleksandar, Dramlić, Dragan, Radmilović, Velimir, Uskoković, Petar S., Aleksić, Radoslav, "Transparent PMMA/silica nanocomposites containing silica nanoparticles coating under supercritical conditions" in Progress in Organic Coatings, 76, no. 4 (2013):626-631, https://doi.org/10.1016/j.porgcoat.2012.12.002 . .