| Abstract [eng] |
Plastic is one of the most used material for packaging with 368 million tons of annual production. Production volumes as well as plastic waste volumes are expecting to increase. Recent years special attention is being paid to sustainable packaging materials from renewable resources and improvement of environment friendly packaging end of life scenarios. Biological materials are identified as an alternative to conventional plastics, but their use in existing production processes requires that their physical and mechanical properties meet the requirements of production technology, that product waste is properly managed and that alternative materials do not have a significant negative impact on the environment throughout their life cycle. In this work, the tensile strength properties of three same thickness different sorts of flexible packaging films tensile strength properties as maximal tensile force and ultimate tensile strength were examined: mono-polyethylene film, biodegradable mono-polyethylene film and biobased plastic flexible packaging film containing 85 % of sugarcane bagasse. Also, in order to find out the impact of the studied substances on the environment, a life cycle assessment study was performed and the literature sources were analyzed. Based on the data, it has been found that plastics of biological origin emit less CO2 compared to traditional plastics. In order to replace fossil fuel plastics with biobased, environmental assessments must be done and physical – mechanical properties of different origin materials must be further examined. |
