Phosphated polyurethane-acrylic dispersions: Synthesis, rheological properties and wetting behaviour

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dc.contributor.authorMequanint K.
dc.contributor.authorSanderson R.
dc.contributor.authorPasch H.
dc.date.accessioned2011-05-15T16:02:18Z
dc.date.available2011-05-15T16:02:18Z
dc.date.issued2002
dc.description.abstractPhosphated polyurethane-acrylic dispersions were prepared by a new method that is free from organic solvents and requires a very low dispersion force. After the carboxylic acid groups of the phosphated polyurethane were neutralised by suitable bases, water was added to form the phosphated polyurethane seed dispersion. Polyurethane-acrylic dispersions were obtained from the phosphated polyurethane seed by emulsion copolymerisation. The polyurethane seed polymer was found to be stable over the initiator concentration used and the rheological properties of the polyurethane acrylics were found to follow Newtonian behaviour under the prescribed experimental conditions. This is a good indication that the dispersions may be used as pigment wetting media. The dynamic contact angle study showed the poor wettability of the phosphated polyurethane-acrylic dispersion films, indicating good hydrophobicity. © 2002 Elsevier Science Ltd All rights reserved.
dc.description.versionArticle
dc.identifier.citationPolymer
dc.identifier.citation43
dc.identifier.citation19
dc.identifier.issn323861
dc.identifier.other10.1016/S0032-3861(02)00367-1
dc.identifier.urihttp://hdl.handle.net/10019.1/12406
dc.subjectCarboxylic acids
dc.subjectHydrophobicity
dc.subjectOrganic solvents
dc.subjectRheology
dc.subjectSynthesis (chemical)
dc.subjectWetting
dc.subjectDispersion force
dc.subjectPolymers
dc.subjectacrylic acid
dc.subjectpolyurethan
dc.subjectpolymer
dc.subjectrheology
dc.subjectarticle
dc.subjectdispersion
dc.subjectemulsion
dc.subjectflow kinetics
dc.subjecthydrophobicity
dc.subjectpolymerization
dc.subjectsynthesis
dc.subjectwettability
dc.titlePhosphated polyurethane-acrylic dispersions: Synthesis, rheological properties and wetting behaviour
dc.typeArticle
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