Observations of peeling of a polyisobutylene-based pressure-sensitive adhesive

A pressure-sensitive adhesive (PSA) was prepared by mixing low- and high-molecular-weight polyisobutylenes (PIB). Peeling of the adhesive from polycarbonate was observed from the side and from below at three peel rates. A correlation between the peel force and a characteristic dimension of the peel...

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Bibliographic Details
Published in:International journal of adhesion and adhesives 1998-01, Vol.18 (2), p.131-137
Main Authors: Christensen, Søren Flygenring, Everland, Hanne, Hassager, Ole, Almdal, Kristoffer
Format: Article
Language:English
Subjects:
A. pressure-sensitive
Application fields
Applied sciences
C. microscopy
C. rheology
D. stress distribution
Exact sciences and technology
peel test
Polymer industry, paints, wood
Technology of polymers
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Summary:A pressure-sensitive adhesive (PSA) was prepared by mixing low- and high-molecular-weight polyisobutylenes (PIB). Peeling of the adhesive from polycarbonate was observed from the side and from below at three peel rates. A correlation between the peel force and a characteristic dimension of the peel front was obtained. According to the observations, the deformation of adhesive across the peel front is dominated by uniaxial extension. From model stretch experiments simulating the observed stretch history of adhesive, theoretical peel force values were obtained which agree well with the measured peel force values.
ISSN:0143-7496
1879-0127
DOI:10.1016/S0143-7496(97)00037-7