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Effect of stabilizers on surface oxidation of silicone rubber by corona discharge
KTH, Superseded Departments, Polymer Technology.
KTH, Superseded Departments, Polymer Technology.
2004 (English)In: Polymer degradation and stability, ISSN 0141-3910, E-ISSN 1873-2321, Vol. 84, no 3, 469-474 p.Article in journal (Refereed) Published
Abstract [en]

Crosslinked polydimethylsiloxane (PDMS) containing Irganox(R) 1076, Tinuvin(R) 770 or lrganox(R) 565, prepared by swelling PDMS in a solution of one of these stabilizers in n-hexane, was exposed to a corona discharge and the corona exposure time (tau(crit)) to form a brittle, silica-like layer was determined by optical microscopy. The critical corona exposure time showed a linear increase with increasing stabilizer concentration; Tinuvin 770 showed the highest efficiency and Irganox 1076 the lowest. The increase in tau(crit) on corona exposure of the stabilized samples with reference to the value for unstabilized PDMS was similar to that reported earlier for air plasma exposed samples. The efficiency of the stabilizers towards corona-induced surface oxidation of PDMS was also confirmed by X-ray photoelectron spectroscopy.

Place, publisher, year, edition, pages
2004. Vol. 84, no 3, 469-474 p.
Keyword [en]
crosslinked polydimethylsiloxane, surface oxidation, cracking, corona, stabilizers, plasma-treated polydimethylsiloxane, cross-linked polydimethylsiloxane, hydrophobic recovery, exposure
National Category
Polymer Technologies
URN: urn:nbn:se:kth:diva-23511DOI: 10.1016/j.polymdegradstab.2004.01.005ISI: 000222122600013ScopusID: 2-s2.0-2642531191OAI: diva2:342209
QC 20100525, QC 20111012Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2012-03-20Bibliographically approved

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Fateh-Alavi, KamyarGedde, Ulf W.
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