Research on the Influence of the Type and Content of Regranulate on Selected Mechanical Properties of the Three-Layer Polyethylene Film Obtained by Blown Film Extrusion
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1
Lublin University of Technology, Faculty of Mechanical Engineering, 38 Nadbystrzycka Street, 20-618 Lublin, Poland
2
University of Zielona Góra; Institute of Materials and Biomedical Engineering, 4 Prof. Z. Szafran Str., 65-516 Zielona Góra, Poland
3
University of Zielona Góra, Institute of Mechanical Engineering, 4 Prof. Z. Szafran Str., 65-516 Zielona Góra, Poland
4
University of Zielona Góra, Institute of Mathematics, 4 Prof. Z. Szafran Str., 65-516 Zielona Góra, Poland
5
Poznań University of Technology, Faculty of Control, Robotics and Electrical Engineering; 3A Piotrowo Str., Poznań, Poland
6
Polipak Ltd., R&D, 7 Fabryczna Str., 63-000 Środa Wielkopolska, Poland
Corresponding author
Tomasz Jachowicz
Lublin University of Technology, Faculty of Mechanical Engineering, 38 Nadbystrzycka Street, 20-618 Lublin, Poland
Adv. Sci. Technol. Res. J. 2024; 18(8):385-402
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ABSTRACT
The article presents the results of experimental studies on selected, mechanical properties of three-layer film, produced by blown film extrusion. Three-layer film was developed for making garbage bags. The research was carried out under industrial conditions. The three-layer film sleeves tested were made of low and high density polyethylene and differed in raw material composition, including a different content of recycled polyethylene in individual film layers. Static tensile strength, tear strength and puncture strength tests were carried out using the dart drop method. On the basis of the results obtained, the impact of the content of polyethylene regranulate on the composition of the raw material of the multilayer film in the above-mentioned selected mechanical properties was assessed, in relation to the expected values of these parameters, ensuring the correct use of the three-layer film in the production process and obtaining a garbage bag with appropriate utility features.