Abstract
The weight of packaging materials will be increased with advanced innovations, such as multilayer plastic. The consequence of the advanced innovations is challenges in the following reuse activities. This study aimed to investigate the properties of multilayer plastic materials after recycling processes and will increase the awareness of plastic packaging material for reuse options. In this research, the materials were produced from food packages by crushing them and treating them with injection molding equipment. The implementation of materials in the processing was tested, and the structural and mechanical characteristics of the produced plastic materials was evaluated and discussed. Based on the completed tests, plastic materials used in food packages have the clearest differences in the material features, for instance, the melt flow rate and elongation rate in the tensile test that varied between 2.96–48.4 g/10min and 2–289%, respectively. The variation in the characterizations ranged widely between the material structures. The results indicate that solid plastic packaging materials have better mechanical features compared to foil materials. The structural analysis of materials showed that multilayer plastic includes a wide spectrum of different elements within materials, creating a challenge for future recycling.
Highlights
Plastic is an excellent material with outstanding properties, but if it is carelessly processed it can cause remarkable global concerns for humans and the environment
The aim of this study was to assess the feature of multilayer plastic materials recycling processes and evaluate its reusability as a material in novel applications, together with other after recycling processes and evaluate its reusability as a material in novel applications, together with plastic materials
The results demonstrated that the groups of polyethylene terephthalate (PET)-bottles and 7-box have relatively high melt volume flow rate (MVR)
Summary
Plastic is an excellent material with outstanding properties, but if it is carelessly processed it can cause remarkable global concerns for humans and the environment. Plastic from waste electrical and electronic equipment (WEEE) might include some flame retardants [2] and municipal solid waste (MSW). Might include waste plastic with a high heavy metal content [3], which raises concerns for the environment. The increasing amount of plastic waste causes concerns for global non-sustainable development, for example in coastal areas, where in the worst-case scenario, waste plastic might be able to enter the ocean [6]. It is predicted that plastic marine debris will increase if waste management infrastructure improvements are not made [7]. Plastic waste should be recycled and re-utilized in a controlled manner and it is the responsibility of all of us to promote this topic
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