Modern Biodegradable Plastics—Processing and Properties: Part I

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ID: 266903
2020
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Abstract
This paper presents a characterization of a plastic extrusion process and the selected properties of three biodegradable plastic types, in comparison with LDPE (low-density polyethylene). The four plastics include: LDPE, commercial name Malen E FABS 23-D022; potato starch based plastic (TPS-P), BIOPLAST GF 106/02; corn starch based plastic (TPS-C), BioComp®BF 01HP; and a polylactic acid (polylactide) plastic (PLA), BioComp®BF 7210. Plastic films with determined geometric parameters (thickness of the foil layer and width of the flattened foil sleeve) were produced from these materials (at individually defined processing temperatures), using blown film extrusion, by applying different extrusion screw speeds. The produced plastic films were tested to determine the geometrical features, MFR (melt flow rate), blow-up ratio, draw down ratio, mass flow rate, and exit velocity. The tests were complemented by thermogravimetry, differential scanning calorimetry, and chemical structure analysis. It was found that the biodegradable films were extruded at higher rate and mass flow rate than LDPE; the lowest thermal stability was ascertained for the film samples extruded from TPS-C and TPS-P, and that all tested biodegradable plastics contained polyethylene.
Reference Key
sikora2020materialsmodern Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Janusz Sikora;Łukasz Majewski;Andrzej Puszka;Sikora, Janusz;Majewski, Łukasz;Puszka, Andrzej;
Journal Materials (Basel, Switzerland)
Year 2020
DOI
10.3390/ma13081986
URL
https://www.mdpi.com/1996-1944/13/8/1986/htm
Keywords
starch biodegradability pla dsc extrusion tps polymer processing mfr

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