Journal Published Online: 01 May 2012
Volume 9, Issue 5

The Mechanism of Adhesion Improvement of Elastomeric Silicone Sealants to Difficult-to-Bond Polymeric Substrates through Reactive or Interpenetrating Molecular Brushes

CODEN: JAIOAD

Abstract

High-quality and durable adhesion of elastomeric adhesives to metallic, ceramic, and organic substrates is essential to a broad range of industries, e.g., building and construction, automotive, electronic, aerospace, biomedical, and others. The principles of engineering substrate surfaces through grafted connector molecules are discussed in this paper. In particular, two important modes of interaction for surface-grafted “molecular brushes” are investigated and experimentally verified. It is demonstrated that the inclusion of silicone- and/or amine-terminated graft molecules, such as silanes or polyethyleneimines, at polymer interfaces, results in the formation of strong molecular bridges between a range of organic substrates and elastomeric sealants leading to significantly improved bonding. The technology has been successfully adopted by global automotive industry for improving adhesion of a variety of adhesives and coatings to polyolefinic substrates.

Author Information

Gutowski, W.(Voytek)
CSIRO Materials Science and Engineering, Interphase Engineering and Intelligent Materials Surfaces Group, Melbourne-Highett, Victoria, AU
Toikka, Gary
CSIRO Materials Science and Engineering, Interphase Engineering and Intelligent Materials Surfaces Group, Melbourne-Highett, Victoria, AU
Li, Sheng
CSIRO Materials Science and Engineering, Interphase Engineering and Intelligent Materials Surfaces Group, Melbourne-Highett, Victoria, AU
Pages: 16
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: JAI104275
ISSN: 1546-962X
DOI: 10.1520/JAI104275