Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/6527
Title: Production of sulfonated polyetheretherketone/polypropylene fibers for photoactive textiles
Authors: Mylläri, Ville
Fatarella, Enrico
Ruzzante, Marco
Pogni, Rebecca 
Baratto, Maria Camilla 
Skrifvars, Mikael
Syrjälä, Seppo
Järvelä, Pentti
Keywords: blends, fibers, functionalization of polymers, photochemistry, textiles
Issue Date: 2015
Project: None 
Journal: JOURNAL OF APPLIED POLYMER SCIENCE
Abstract: 
New photocatalytic fibers made of sulfonated polyetheretherketone (SPEEK)/polypropylene (PP) are melt compounded and melt spun, first on laboratory scale and then on a semi-industrial scale. Fiber spinnability is optimized and the fibers are characterized using mechanical testing, electron paramagnetic resonance (EPR) spectroscopy, and scanning electron microscopy (SEM). According to the results, the fiber spinnability remains at a good level up to 10 wt % SPEEK concentration. Optimal processing temperature is 2008C due to the thermal degradation at higher temperatures. EPR measurements show good and long-lasting photoactivity after the initial irradiation but also decay in the radical intensity during several irradiation cycles. Mechanical tenacity of the SPEEK/PP 5 : 95 fiber is approximately 20% lower than for otherwise similar PP fiber. The fiber is a potential alternative to compete against TiO2-based products but more research needs to be done to verify the real-life performance.
Description: 
76447
URI: http://hdl.handle.net/20.500.12779/6527
ISSN: 1097-4628
DOI: 10.1002/app.42595
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