Surface hydrolysis of filaments based on poly(trimethylene terephthalate) spun at high spinning speeds

The surface alkaline hydrolysis of fibers made from poly(trimethylene terephthalate) (PTT) was studied after extruding the polymer at high spinning speeds from 2000 to 6000 m/min and heat setting in the range of temperatures from 100 to 180°C. Fiber weight loss increased with an increasing heat‐sett...

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Bibliographic Details
Published in:Journal of applied polymer science 2004-05, Vol.92 (3), p.1724-1730
Main Authors: Kotek, Richard, Jung, Dong-Wook, Kim, Joon Ho, Smith, Brent, Guzman, Patricia, Schmidt, Benjamin
Format: Article
Language:English
Subjects:
alkaline hydrolysis
Applied sciences
Exact sciences and technology
extrusion
high speed spinning
Physicochemistry of polymers
poly(trimethylene terephthalate)
polyesters
Polymer industry, paints, wood
porous fibers
surfaces
Technology of polymers
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Summary:The surface alkaline hydrolysis of fibers made from poly(trimethylene terephthalate) (PTT) was studied after extruding the polymer at high spinning speeds from 2000 to 6000 m/min and heat setting in the range of temperatures from 100 to 180°C. Fiber weight loss increased with an increasing heat‐setting temperature but it was also dependent on the spinning speed. Some of the partially hydrolyzed fibers had a well‐developed, hydrophilic surface, and pore size in the range of 0.69 to 1.20 μm. The optimum reaction and morphological conditions for increasing porosity in PTT fibers depends on spinning speed and heat‐setting temperature. A temperature of 180°C is the upper limit for heat‐setting PTT filaments but seems to be the most effective for making porous fibers. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 1724–1730, 2004
ISSN:0021-8995
1097-4628
DOI:10.1002/app.20132