High-Velocity Stretching of Renewable Polymer Blends

Johanna Eichelter, Harald Wilhelm, Andreas Mautner, Barbara Fahrngruber, Erhard Schafler, Andreas Eder, Martin Kozich, Alexander Bismarck

We evaluated the influence of blending various renewable polymer grades and amounts to allow for high stretchability during stretching at 800 mm/s to produce polymer tapes with high Young's moduli E and yield stress sigma(y) similar to industrial production of non-degradable synthetic polymers. Renewable polymer blends based on TPS, PBAT, and PLA with high stretchability as well as high E and sigma(y) of stretched tapes comparable to high-density polyethylene (PE-HD) and isotactic polypropylene were identified. High stretchability (up to 380%) was facilitated with TPS-PBAT tapes and comparably high E (up to 5000 MPa) and sigma(y) (up to 160 MPa) of stretched tapes were obtained for mixtures of different PLA grades resulting in E-moduli exceeding that of PE-HD. A balance of these properties approaching those of synthetic polymers was achieved with PLA-PBAT blends (stretchability: 340%, E: 4500 MPa, sigma(y): 120 MPa).

Department of Materials Chemistry, Physics of Nanostructured Materials, Dynamics of Condensed Systems
External organisation(s)
AGRANA Research & Innovation Center GmbH, Medical Research Council Centre for Outbreak Analysis and Modelling, Department of Infectious Disease Epidemiology, Imperial College London, London, UK., University of Johannesburg (UJ), TGM - Technologisches Gewerbemuseum , Franz S. Huemer GmbH , Franz S. Huemer GmbH (FSH)
Journal of Polymers and the Environment
No. of pages
Publication date
Peer reviewed
Austrian Fields of Science 2012
104011 Materials chemistry, 103018 Materials physics, 104018 Polymer chemistry, 103023 Polymer physics
ASJC Scopus subject areas
Environmental Engineering, Polymers and Plastics, Materials Chemistry
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