The paper concerns pull-off strength test results of epoxy- and polyurethane-based coatings with three different powder fillers (carbonyl iron, ferrites, and graphite flakes). Polymer coatings were applied on an aluminum substrate that was degreased and/or pre-treated by means of abrasive blasting using electrocorundum. The roughness profile and the basic roughness parameters were determined, and the results showed a decisive effect of substrate preparation on the coating's adhesion. The highest values of pull-off strength were obtained from epoxy (3.88 MPa) and polyurethane (3.12 MPa) coatings containing MG192 graphite flakes. During the pull-off tests a cohesive detachment mechanism was observed only between the mentioned coatings and the substrate.

本文涉及具有三种不同粉末填料（羰基铁，铁氧体和石墨薄片）的环氧和聚氨酯基涂料的剥离强度测试结果。将聚合物涂层施加到铝基板上，该铝基板通过使用电刚玉进行喷砂处理而脱脂和/或预处理。确定了粗糙度轮廓和基本粗糙度参数，结果表明基材制备对涂层附着力的决定性影响。剥离强度的最高值来自包含MG192石墨片的环氧树脂（3.88 MPa）和聚氨酯（3.12 MPa）涂层。在剥离试验期间，仅在所述涂层和基材之间观察到内聚剥离机理。