Study of defectoscopy of partially biodegradable LDPE films

Physical characteristics of the loaded new developed partially biodegradable LDPE polymeric films (containing sorbit, molasses and chitosan additives) with defects and without have been investigated experimentally by using the method of projection moire. The first eigenmodes are analysed, graphical results of their investigation are presented. It was determined that the shape of the first vibrations eigenmode and the characteristics of vibrations have changed when the polymeric film had a tear defect. The results obtained could be applied for the determination of characteristics and qualities of new developed LDPE polymeric films.