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Manufacture and research of TPS/PE biocomposites properties

Abstract

In this paper the process of native starch preparing for modification by extrusion and manufacture of biocomposites is presented. The first aim of this study was to determine the mixing and granulating condition of native starch to obtain granulated native starch. For mixing and granulation of native starch Intensive Mixer manufactured by Maschinenfabrik Gustav Eirich was used. Mixing and granulation in a single process is a new method of preparation of powders for other processing. The main task of granulation is the elimination of dust emissions and the increase in density of powders. Granules are easy for dosage and more handy for transport and storage than powders, which is important from a technological point of view. The second aim of this study was to manufacture TPS/PE biocomposites. At first thermal modification of waxy maize starch was carried out with the use of a co-rotating twin screw extruder. During extrusion native starches have been deprived of their crystallinity and the obtained starch (TPS) has fully amorphous structure. XRD analysis revealed that semi crystalline phase of native starch after extrusion disappeared. During extrusion crystal structure of native starch is transformed into amorphous structure of thermoplastic starch (TPS), which was confirmed by XRD analysis.

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Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
COMPOSITES PART B-ENGINEERING no. 68, pages 310 - 316,
ISSN: 1359-8368
Language:
English
Publication year:
2015
Bibliographic description:
Korol J., Lenża J., Formela K.: Manufacture and research of TPS/PE biocomposites properties// COMPOSITES PART B-ENGINEERING. -Vol. 68, (2015), s.310-316
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.compositesb.2014.08.045
Verified by:
Gdańsk University of Technology

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