Plasma modification is an efficient method for improving surface characteristics of polymers. In a case of soft polymers, the external deformation of a soft substrate can easily damage the treated surface. This generates a need for new treatment techniques and a detailed investigation of the mechanical properties of the modified surface. In this work, inhomogeneous carbon nanolayers were deposited by magnetron sputtering on preliminary activated in argon plasma surface of elastic polyurethane. The specific features of the coatings (wettability, stiffness, thickness and structure) depend on the complex composition of the initial polymer. The treated surfaces demonstrate improved albumin adsorption and good deformability. It is shown that no strain-induced damage, typical of similar thicker/stiffer coatings, occurs because of the low stiffness and non-uniform structure of the obtained coatings.

等离子体改性是改善聚合物表面特性的有效方法。在软聚合物的情况下，软基材的外部变形很容易损坏被处理的表面。这产生了对新的处理技术和对改性表面的机械性能的详细研究的需求。在这项工作中，不均匀的碳纳米层是通过磁控溅射沉积在弹性聚氨酯的氩等离子体表面上初步活化的。涂层的具体特征（润湿性，刚度，厚度和结构）取决于初始聚合物的复杂组成。经处理的表面显示出改善的白蛋白吸附和良好的可变形性。结果表明，没有应变引起的损伤，这是类似的增厚/增厚涂层的典型表现，