Abstract
Results of testing of two groups of film adhesives that differ in their chemical natures, service temperatures, and elastic-deformation characteristics, such as VK-3, VK-50, and VK-26M phenolic rubber adhesives and high-strength VK-51A epoxy adhesive, are reported. The locus of failure of adhesive joints after wedge tests in the initial state and after heat-moisture aging is studied using a scanning electron microscope. It is revealed that, as result of heat-moisture aging, the locus of failure of adhesive joints changes for VK-51A (with and without EP-0234 primer) and VK-3 adhesives, whereas it remains unchanged for VK-50 (with EP-0234 primer) and VK-26M adhesives.
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A. P. Petrova and N. F. Lukina, Klei Germet. Tekhnol., No. 7, 28 (2006).
G. N. Finogenov, Klei Germet. Tekhnol., No. 10, 26 (2006).
STP 1-595-11-91-83. Method of Testing of Adhesive Joint of Metals for Crack Resistance (VIAM, Moscow, 1983) [in Russian].
GOST (State Standard) 25717-83: Methods of Measurement of Shear Modulus in Adhesive Joint, 1983.
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Original Russian Text © A.P. Petrova, I.S. Deev, N.F. Lukina, 2008, published in Klei. Germetiki. Tekhnologii, 2008, No. 1, pp. 24–29.
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Petrova, A.P., Deev, I.S. & Lukina, N.F. The effect of heat-moisture aging on elastic-deformation properties and the type of failure of adhesive joints in testing for cracking resistance. Polym. Sci. Ser. D 1, 161–166 (2008). https://doi.org/10.1134/S1995421208030064
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DOI: https://doi.org/10.1134/S1995421208030064