The effect of polyurethane on NaMt and ONaMt dispersions

Ebru Günister, Ipek Çobanoǧlu, Sevim Işçi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The rheological parameters of clay suspensions can be used to examine particle-particle interactions. The polymers that have been added to the clay suspensions interact with clay particles, according to their ionic or non-ionic character. In this study, we have synthesized an organoclay (ONaMt) form of a Na-activated montmorillonite (NaMt) and investigated rheological and electrokinetic properties of their water based dispersions. After that, the medium is changed with water based solution of PU and the changes on the rheological and electrokinetic properties and the structural analysis of the materials were studied. All the results have been commented by taking the interaction between the clay and the polymer molecules into consideration. X-ray diffraction (XRD) studies showed that basal spacing of NaMt samples are more expandable, up to 22 Å, than ONaMt samples, which their expendabilities are relatively constant at about 19 Å.

Original languageEnglish
Pages (from-to)357-361
Number of pages5
JournalProgress in Organic Coatings
Volume65
Issue number3
DOIs
Publication statusPublished - Jul 2009

Funding

This paper is supported by Research Fund of Istanbul Technical University, Turkey (Project No: 00_06_167) and TUBİTAK (107T291(TBAG-HD/279)). We would like to thank to Prof. Dr. Ö. Işık Ece for providing XRD studies in his laboratory.

FundersFunder number
Istanbul Technical University, Turkey00_06_167
TUBİTAK107T291, TBAG-HD/279

    Keywords

    • Montmorillonite
    • Octadecyltrimethylammonium bromide
    • Organoclay
    • Polyurethane
    • Rheology
    • XRD
    • Zeta potential

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