Antibacterial polymer fibres by rosin compounding and melt-spinning

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http://hdl.handle.net/10138/306694

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Kanerva , M , Puolakka , A , Takala , T M , Elert , A M , Mylläri , V , Jönkkäri , I , Sarlin , E , Seitsonen , J , Ruokolainen , J , Saris , P & Vuorinen , J 2019 , ' Antibacterial polymer fibres by rosin compounding and melt-spinning ' , Materials Today Communications , vol. 20 , 100527 . https://doi.org/10.1016/j.mtcomm.2019.05.003

Title: Antibacterial polymer fibres by rosin compounding and melt-spinning
Author: Kanerva, M.; Puolakka, A.; Takala, T.M.; Elert, A.M.; Mylläri, V.; Jönkkäri, I.; Sarlin, E.; Seitsonen, J.; Ruokolainen, J.; Saris, P.; Vuorinen, J.
Contributor: University of Helsinki, Department of Microbiology
University of Helsinki, Aalto University
University of Helsinki, Department of Microbiology
Date: 2019-09
Language: eng
Number of pages: 9
Belongs to series: Materials Today Communications
ISSN: 2352-4928
URI: http://hdl.handle.net/10138/306694
Abstract: The antibacterial features of natural pine/spruce rosin are well established, yet the functionality in various thermoplastics has not been surveyed. This work focuses on the processing of industrial grade purified rosin mixed with polyethylene (PE), polypropylene (PP), polylactic acid (PLA), polyamide (PA) and corn starch based biopolymer (CS). Homopolymer masterbatches were extrusion-compounded and melt-spun to form fibres for a wide range of products, such as filters, reinforcements, clothing and medical textiles. Due to the versatile chemical structure of rosin, it was observed compatible with all the selected polymers. In general, the rosin-blended systems were shear-thinning in a molten condition. The doped fibres spun of PE and PP indicated adequate melt-spinning capability and proper mechanical properties in terms of ultimate strength and Young's modulus. The antibacterial response was found dependent on the selected polymer. Especially PE with a 10 wt% rosin content showed significant antibacterial effects against Escherichia coli DH5α and Staphylococcus aureus ATCC 12598 when analysed in the Ringer's solution for 24 h.
Subject: 216 Materials engineering
1183 Plant biology, microbiology, virology
Melt spinning
Fibre
Antibacterial
Thermoplastics
SPUN
SPEED
RESIN
BIONANOCOMPOSITES
CHITOSAN
CELLULOSE
ACID)
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