The efficiency of a novel template-based approach for the dispersion of hydrophilic nanoparticles within hydrophobic polymer matrices is investigated. The procedure envisages the permeation of a well dispersed nanoparticle suspension inside a micro-porous matrix, obtained through selective extraction of a sacrificial phase from a finely interpenetrated co-continuous polymer blend. Specifically, a blend of high density polyethylene (HDPE) and polyethylene oxide (PEO) at 50/50 wt% is prepared by melt mixing. The addition of small amounts of organo-clay promotes the necessary refinement of the blend morphology. Once removed the PEO, the micro-porous HDPE matrix is dipped in a colloidal suspension of zinc oxide nanoparticles which exhibits low interfacial tension with HDPE. A system prepared by traditional melt mixing is used as reference. Melt- and solid-state viscoelastic measurements reveal a good quality of the filler dispersion despite the uneven distribution on micro-scale. The latter can be capitalized to minimize the filler content to attain a certain improvement of the material properties or to design nano-structured polymer composites. © BME-PT.

Dispersing hydrophilic nanoparticles in hydrophobic polymers: HDPE/ZnO nanocomposites by a novel template-based approach / de Luna, M. Salzano; Galizia, M.; Wojnarowicz, J.; Rosa, Roberto; Lojkowski, W.; Leonelli, Cristina; Acierno, D.; Filippone, G.. - In: EXPRESS POLYMER LETTERS. - ISSN 1788-618X. - ELETTRONICO. - 8:(2014), pp. 362-372. [10.3144/expresspolymlett.2014.40]

Dispersing hydrophilic nanoparticles in hydrophobic polymers: HDPE/ZnO nanocomposites by a novel template-based approach

ROSA, Roberto;LEONELLI, Cristina;
2014

Abstract

The efficiency of a novel template-based approach for the dispersion of hydrophilic nanoparticles within hydrophobic polymer matrices is investigated. The procedure envisages the permeation of a well dispersed nanoparticle suspension inside a micro-porous matrix, obtained through selective extraction of a sacrificial phase from a finely interpenetrated co-continuous polymer blend. Specifically, a blend of high density polyethylene (HDPE) and polyethylene oxide (PEO) at 50/50 wt% is prepared by melt mixing. The addition of small amounts of organo-clay promotes the necessary refinement of the blend morphology. Once removed the PEO, the micro-porous HDPE matrix is dipped in a colloidal suspension of zinc oxide nanoparticles which exhibits low interfacial tension with HDPE. A system prepared by traditional melt mixing is used as reference. Melt- and solid-state viscoelastic measurements reveal a good quality of the filler dispersion despite the uneven distribution on micro-scale. The latter can be capitalized to minimize the filler content to attain a certain improvement of the material properties or to design nano-structured polymer composites. © BME-PT.
2014
8
362
372
Dispersing hydrophilic nanoparticles in hydrophobic polymers: HDPE/ZnO nanocomposites by a novel template-based approach / de Luna, M. Salzano; Galizia, M.; Wojnarowicz, J.; Rosa, Roberto; Lojkowski, W.; Leonelli, Cristina; Acierno, D.; Filippone, G.. - In: EXPRESS POLYMER LETTERS. - ISSN 1788-618X. - ELETTRONICO. - 8:(2014), pp. 362-372. [10.3144/expresspolymlett.2014.40]
de Luna, M. Salzano; Galizia, M.; Wojnarowicz, J.; Rosa, Roberto; Lojkowski, W.; Leonelli, Cristina; Acierno, D.; Filippone, G.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1106454
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