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Development of nanocomposites based on organically modified montmorillonite and plasticized PVC with improved barrier properties
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
2016 (English)In: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 133, no 3, 42876Article in journal (Refereed) Published
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Abstract [en]

Montmorillonite (MMT) was organically modified with tributyl citrate (TBC). Organoclays (OMMTs) were processed with diisononyl phthalate (DINP)-plasticized polyvinyl chloride (PVC) to form polymer nanocomposites. The produced composite materials showed a contradictory change in properties to that expected of a layered silicate nanocomposite, with a decreased E-modulus and increased gas permeability compared with a material without OMMT. It was experimentally shown that the TBC modifier was extracted from the OMMT and was dispersed in the PVC/DINP matrix, whereupon the OMMT collapsed and formed micrometer-sized agglomerates. Further investigation revealed that TBC has a significant effect on the gas permeability and the E-modulus, even at low additions to a DINP-plasticized PVC. A PVC nanocomposite with the TBC acting as both the OM for MMT and as the primary plasticizer was produced. This material showed a significantly increased E-modulus as well as a decrease in gas permeability, confirming that it is possible to develop a nanocomposite based on plasticized PVC, if both the organo-modification of the MMT and the formulation of the matrix are carefully selected. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 42876.

Place, publisher, year, edition, pages
John Wiley & Sons, 2016. Vol. 133, no 3, 42876
Keyword [en]
clay, manufacturing, mechanical properties, plasticizer, poly(vinyl chloride)
National Category
Polymer Technologies Composite Science and Engineering Materials Chemistry
Identifiers
URN: urn:nbn:se:ri:diva-97DOI: 10.1002/app.42876Scopus ID: 2-s2.0-84945491968OAI: oai:DiVA.org:ri-97DiVA: diva2:932145
Available from: 2016-05-31 Created: 2016-04-28 Last updated: 2017-11-30Bibliographically approved

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