Effect of Microwave Treatment on the Properties of PET Fiber

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Abstract:

PET fiber was preprocessed by means of microwave radiation. Different reaction parameters such as the time, the power and the Ph value of solution were optioned to study the degree of the fiber hydrolysis. The changes of mechanical performance and hygroscopicity of the fiber were analyzed, which showed that the best power of microwave radiation was the 250W, the best reaction time was 5 min, and the Ph value of solution was 9. Compared with the untreated fiber, the fracture strength of treated fiber is 1.686cN/dtex and the moisture regain is 0.58%. The morphology structure were characterized by SEM and the fracture strength were tested by filament electronic strength tester. The results showed that the surface of PET fibers became rough and the quantities of the -OH and -COOH functional groups on the surface increased after etching. Meanwhile the hygroscopicity of the treated fibers had been enhanced obviously and the fiber strength had been reduced.

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Periodical:

Advanced Materials Research (Volumes 557-559)

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1420-1422

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July 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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