Solid-state organo-modification of montmorillonite for manufacturing of plasticized poly(vinyl chloride) nanocomposites
2018 (English)In: Journal of Vinyl and Additive Technology, ISSN 1083-5601, Vol. 24, p. E146-E153Article in journal (Refereed) Published
Abstract [en]
The preparation of poly(vinyl chloride) (PVC) nanocomposites via direct melt processing is still posing problems mainly because of the lack of availability of suitable commercial organoclays and because of the low thermal stability of PVC. A new type of organic compounds for modifying montmorillonite (MMT), which is suitable for use in plasticized PVC, has been found earlier. The current study shows that it is possible to achieve partially exfoliated PVC nanocomposites with greatly improved mechanical properties using a method of liquid-solid–state intercalation of MMT when using tributyl citrate and diisononyl phthalate (DINP) plasticizers as organic modifiers. It is also shown that liquid mixed metal stabilizers have the ability to intercalate the clay at least when DINP is used. The observation raises questions regarding how this phenomenon can affect the thermal stability of PVC composites. J. VINYL ADDIT. TECHNOL., 24:E146–E153, 2018. © 2017 Society of Plastics Engineers.
Place, publisher, year, edition, pages
2018. Vol. 24, p. E146-E153
Keywords [en]
Chlorine compounds, Clay minerals, Nanocomposites, Plastic products, Solvents, Thermodynamic stability, Diisononyl phthalate, Liquid solids, Melt processing, Mixed-metals, Montmorillonite (MMT), Organic modifier, Plasticized PVC, PVC composites, Polyvinyl chlorides
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-34447DOI: 10.1002/vnl.21618Scopus ID: 2-s2.0-85047858086OAI: oai:DiVA.org:ri-34447DiVA, id: diva2:1237599
2018-08-092018-08-092023-05-26Bibliographically approved