Reduction of aging tendency inp-aramide fibers using ultrasound

Autor:	Emira Pezelj, Maja Andrassy, Ružica Čunko
Rok vydání:	2000
Předmět:	Materials science Polymers and Plastics business.industry fungi Ultrasound General Chemistry Surfaces Coatings and Films Artificial environment Aramid Materials Chemistry White light Fiber Composite material business
Zdroj:	Journal of Applied Polymer Science. 77:2340-2345
ISSN:	1097-4628 0021-8995
DOI:	10.1002/1097-4628(20000912)77:11<2340::aid-app2>3.0.co;2-i
Popis:	The impact of ultrasound pretreatment of p-aramide fibers is investigated to reduce negative effects of fiber aging induced by artificial white light (Suntest), as well as by sunlight and weathering. The investigations indicate that such a pretreatment has a beneficial influence in reducing the aging tendency of the fibers. The ultrasound pretreatment reduces strength losses due to aging in a natural environment by up to 40%, and as much as 60% in artificial environment. A positive impact of the duration of ultrasound treatments is also established in assessing the resistance of p-aramide fibers to aging. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 2340–2345, 2000
Databáze:	OpenAIRE
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