Nanohardness of electron beam irradiated PMMA

Abstract

The submitted paper presents the assessment of mechanical properties of the surface layer of modified polymethyl methacrylate. Modification of the surface layer was made by irradiation cross-linking on the surface, which enables modification of polymer materials and hence the change of their end-use properties. The process of mechanical stress is applied by nanohardness test. The surface layer of polymer material is modified by β-radiation. After the polymethyl methacrylate is subjected to radiation, changes of the surface layer at applied load are observed. Material properties of the created surface layer are measured by nanohardness test using the DSI method (Depth Sensing Indentation).