ADHESION STRENGTH EVALUATION METHOD OF LAMINATES AND ADHESION STRENGTH EVALUATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an adhesion strength evaluation method of laminates with which a strength of adhesion between coating of laminates having different compositions or thickness of coating and a substrate is evaluated quantitatively within a short time.;SOLUTION: A blade 21 is pressed on a surface A which is tilted with respect to an end face D or an advancing direction of the blade 21 in a laminate 1 applying coating 11 uniformly to a surface of a substrate 12, the blade 21 is then moved and a peel load value between the coating 11 and the substrate 12 and a cut load value of the coating 12 are determined. A load value required for tearing the coating 11 in a thickness direction and deforming a tester is determined from the cut load value, an inclination of a primary function of a moving distance of the blade 21, an angle formed from the surface A and a cut surface and thickness of the coating 11. Such a load value is subtracted from the peel load value, thereby determining an adhesion load value between the coating 11 and the substrate 12.;COPYRIGHT: (C)2013,JPO&INPIT