ADHESION CHECK OF ELASTIC ADHESIVES OR ELASTIC SEALANTS TO PART SURFACES Russian patent published in 2017 - IPC G01N19/04 

FIELD: chemistry.

SUBSTANCE: invention relates to the method for checking adhesion of elastic adhesives or elastic sealants to the part surfaces, having the following steps: a) an adhesive (5) or a sealant is applied to the par surface (3); b) optionally after curing the adhesive (5) or the sealant, the applied adhesive (5) or the applied sealant is attempted to be separated from the part surface (3) by the application of peeling force (F), and c) on the basis of the interruptions caused by the application of the peeling force (F) in the adhesive (5) or the sealant, on the one hand, and of the separation the adhesive (5) or the sealant from the part surface (3) caused by the application of the peeling force (F), on the other hand, the adhesion of the adhesive (5) or the sealant is assessed. Before and/or during step a) a layer (4) of anti-adhesive material is applied to, at least, one first region (3b) of the part surface (3), due to which the adhesive (5) or the sealant adheres worse to the part surface (3) and therefore, can be separated from the part surface (3) with a smaller peeling force (F) than directly from the part surface (3). The adhesive (5) or the sealant in step a) is applied as a continuous material region to, at least, one first portion (3b) of the part surface (3), to which the anti-adherent material layer (4) is applied and/or was applied, and directly to, at least, one second portion (3a) of the part surface (3). The adhesive (5) or the sealant is applied to the part surface (3) so that the adhesive (5) or the sealant extends in the longitudinal direction from, at least, one of the second portions (3a) through one of the first portions (3b) to one of the second portions (3a).

EFFECT: possibility to check the adhesion of the adhesive to the part surface for a sufficiently long length without damaging the main part and manufacturing additional parts.

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