CHEMISTRY OF CURING AND ADHESION PROPERTIES OF PHENOLIC RESINS.

被引:0
作者
Kollek, H. [1 ]
Brockmann, H. [1 ]
Mueller von der Haegen, H. [1 ]
机构
[1] Fraunhofer-Inst fuer Angewandte, Materialforschung, Bremen, West Ger, Fraunhofer-Inst fuer Angewandte Materialforschung, Bremen, West Ger
关键词
ADHESIVES; -; Testing; JOINTS; ADHESIVE - Mechanical Properties;
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摘要
The adhesive strength of joints bonded by phenolic resins is influenced by factors such as the concentration of hydroxymethyl groups and polyaromatic compounds in the resol and the acidity of the resol, which determines the curing mechanism. These aspects of adhesive chemistry have been investigated by determining the peel strength of specimens bonded with resols of differing composition, and the results are discussed. A low rate of precondensation of the resol and slight acidity is shown to lead to the best adhesion properties in the peel test.
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页码:37 / 41
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