Nanoparticles dispersion in processing functionalised PP/TiO2 nanocomposites

Distribution and properties

Hassan M. El-Dessouky, Carl A. Lawrence

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Future innovations in textiles and fibrous materials are likely to demand fibres with enhanced multifunctionality. The fibres can be functionalized by dispersing nanoadditives into the polymer during melt compounding/spinning. TiO2 nanoparticles have the potential to improve UV resistance, antistatic, as well as impart self-cleaning by photocatalysis and thereby de-odour and antimicrobial effects. In this study, a micro-lab twin-screw extruder was used to produce samples of polypropylene (PP) nanocomposite monofilaments, doped with nano titanium oxide (TiO2)/manganese oxide (MnO) compound having size ranging from 60 to 200 nm. As a control sample, PP filaments without additives were also extruded. Three samples were produced containing different concentrations (wt%) of the TiO2 compound, i.e. 0.95, 1.24 and 1.79%. Nano metal-oxide distribution in the as-spun and drawn nanocomposite filaments was analysed. Although, there are small clusters of the nanoparticles, the characterizing techniques showed good dispersion and distribution of the modified TiO2 along and across the processed filaments. From UV spectroscopy and TGA, a significant enhancement of polypropylene UV protection and thermal stability were observed: PP with higher percentage of TiO2 absorbed UV wavelength of 387 nm and thermally decomposed at 320.16°C accompanied by 95% weight loss.
Original languageEnglish
Pages (from-to)1115-1124
Number of pages10
JournalJournal of Nanoparticle Research
Volume13
Issue number3
Early online date9 Oct 2010
DOIs
Publication statusPublished - Mar 2011
Externally publishedYes

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Polypropylene
TiO2
Polypropylenes
Nanocomposites
polypropylene
Nanoparticles
nanocomposites
Filament
filaments
nanoparticles
Processing
fibers
Oxides
odors
compounding
Photocatalysis
Manganese oxide
Titanium Oxide
Fibers
Polymer melts

Cite this

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abstract = "Future innovations in textiles and fibrous materials are likely to demand fibres with enhanced multifunctionality. The fibres can be functionalized by dispersing nanoadditives into the polymer during melt compounding/spinning. TiO2 nanoparticles have the potential to improve UV resistance, antistatic, as well as impart self-cleaning by photocatalysis and thereby de-odour and antimicrobial effects. In this study, a micro-lab twin-screw extruder was used to produce samples of polypropylene (PP) nanocomposite monofilaments, doped with nano titanium oxide (TiO2)/manganese oxide (MnO) compound having size ranging from 60 to 200 nm. As a control sample, PP filaments without additives were also extruded. Three samples were produced containing different concentrations (wt{\%}) of the TiO2 compound, i.e. 0.95, 1.24 and 1.79{\%}. Nano metal-oxide distribution in the as-spun and drawn nanocomposite filaments was analysed. Although, there are small clusters of the nanoparticles, the characterizing techniques showed good dispersion and distribution of the modified TiO2 along and across the processed filaments. From UV spectroscopy and TGA, a significant enhancement of polypropylene UV protection and thermal stability were observed: PP with higher percentage of TiO2 absorbed UV wavelength of 387 nm and thermally decomposed at 320.16°C accompanied by 95{\%} weight loss.",
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Nanoparticles dispersion in processing functionalised PP/TiO2 nanocomposites : Distribution and properties. / El-Dessouky, Hassan M.; Lawrence, Carl A.

In: Journal of Nanoparticle Research, Vol. 13, No. 3, 03.2011, p. 1115-1124.

Research output: Contribution to journalArticle

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