View in EDS HTML Full Text PDF Full Text

Influence of Polyol Molecular Weight and Type on the Tack and Peel Properties of Waterborne Polyurethane Pressure- Sensitive Adhesives.

Saved in:
Bibliographic Details
Title: Influence of Polyol Molecular Weight and Type on the Tack and Peel Properties of Waterborne Polyurethane Pressure- Sensitive Adhesives.
Authors: Akram, Nadia1, Gurney, Robert S.2, Zuber, Mohammad3, Ishaq, Muhammad1, Keddie, Joseph L.2 j.keddie@surrey.ac.uk
Source: Macromolecular Reaction Engineering. Oct2013, Vol. 7 Issue 10, p493-503. 11p.
Subjects: Polyols, Molecular weights, Pressure-sensitive adhesives, Polyurethanes, Polypropylene oxide, Viscous flow
Abstract: A requirement for optimum performance in a pressure-sensitive adhesive (PSA) is the right balance between viscous and elastic properties, achieved by controlling the molecular architecture. Here, waterborne polyurethane PSAs are synthesized using a blend of polyether and polyalkene-based polyols. The effects of the polyol type and molecular weight on the adhesive and thermomechanical properties are explored to optimize them for PSA applications. A linear polyurethane is synthesized by the reaction of an aliphatic diisocyanate with a diol blend of polypropylene glycol (PPG) and hydroxyl-terminated polybutadiene (HTPB). With increasing concentrations of flexible HTPB segments and the associated increased viscous dissipation a favorable increase in the tack adhesion energy and peel strength is obtained. Adhesive properties are improved with increasing PPG molecular weight because chain entanglements become possible in the soft segments and raise the storage modulus. [ABSTRACT FROM AUTHOR]
Copyright of Macromolecular Reaction Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: egs
DbLabel: Engineering Source
An: 91255533
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Influence of Polyol Molecular Weight and Type on the Tack and Peel Properties of Waterborne Polyurethane Pressure- Sensitive Adhesives.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Akram%2C+Nadia%22">Akram, Nadia</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gurney%2C+Robert+S%2E%22">Gurney, Robert S.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Zuber%2C+Mohammad%22">Zuber, Mohammad</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Ishaq%2C+Muhammad%22">Ishaq, Muhammad</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Keddie%2C+Joseph+L%2E%22">Keddie, Joseph L.</searchLink><relatesTo>2</relatesTo><i> j.keddie@surrey.ac.uk</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Macromolecular+Reaction+Engineering%22">Macromolecular Reaction Engineering</searchLink>. Oct2013, Vol. 7 Issue 10, p493-503. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Polyols%22">Polyols</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+weights%22">Molecular weights</searchLink><br /><searchLink fieldCode="DE" term="%22Pressure-sensitive+adhesives%22">Pressure-sensitive adhesives</searchLink><br /><searchLink fieldCode="DE" term="%22Polyurethanes%22">Polyurethanes</searchLink><br /><searchLink fieldCode="DE" term="%22Polypropylene+oxide%22">Polypropylene oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Viscous+flow%22">Viscous flow</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A requirement for optimum performance in a pressure-sensitive adhesive (PSA) is the right balance between viscous and elastic properties, achieved by controlling the molecular architecture. Here, waterborne polyurethane PSAs are synthesized using a blend of polyether and polyalkene-based polyols. The effects of the polyol type and molecular weight on the adhesive and thermomechanical properties are explored to optimize them for PSA applications. A linear polyurethane is synthesized by the reaction of an aliphatic diisocyanate with a diol blend of polypropylene glycol (PPG) and hydroxyl-terminated polybutadiene (HTPB). With increasing concentrations of flexible HTPB segments and the associated increased viscous dissipation a favorable increase in the tack adhesion energy and peel strength is obtained. Adhesive properties are improved with increasing PPG molecular weight because chain entanglements become possible in the soft segments and raise the storage modulus. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Macromolecular Reaction Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=91255533
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/mren.201300109
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 493
    Subjects:
      – SubjectFull: Polyols
        Type: general
      – SubjectFull: Molecular weights
        Type: general
      – SubjectFull: Pressure-sensitive adhesives
        Type: general
      – SubjectFull: Polyurethanes
        Type: general
      – SubjectFull: Polypropylene oxide
        Type: general
      – SubjectFull: Viscous flow
        Type: general
    Titles:
      – TitleFull: Influence of Polyol Molecular Weight and Type on the Tack and Peel Properties of Waterborne Polyurethane Pressure- Sensitive Adhesives.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Akram, Nadia
      – PersonEntity:
          Name:
            NameFull: Gurney, Robert S.
      – PersonEntity:
          Name:
            NameFull: Zuber, Mohammad
      – PersonEntity:
          Name:
            NameFull: Ishaq, Muhammad
      – PersonEntity:
          Name:
            NameFull: Keddie, Joseph L.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 10
              Text: Oct2013
              Type: published
              Y: 2013
          Identifiers:
            – Type: issn-print
              Value: 1862832X
          Numbering:
            – Type: volume
              Value: 7
            – Type: issue
              Value: 10
          Titles:
            – TitleFull: Macromolecular Reaction Engineering
              Type: main
ResultId 1