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HERO ID
8439430
Reference Type
Journal Article
Title
Influences of stabilizers on lyocell spinning dope and fiber properties
Author(s)
Yang, G; Yang, Y; Zhang, H; Shao, H
Year
2021
Is Peer Reviewed?
1
Journal
Polymer Testing
ISSN:
0142-9418
EISSN:
1873-2348
Publisher
Elsevier Ltd
Volume
99
Language
English
DOI
10.1016/j.polymertesting.2021.107228
Abstract
To inhibit some side reactions in the production of Lyocell fiber, it is usually necessary to add a stabilizer into the spinning dope. In this report, the effects of several stabilizers on the spinning dope are investigated using rheometry, viscometry, and UV spectroscopy, and the resulting Lyocell fibers are thoroughly analyzed. The results indicate that 2,4,5,7,8-pentamethyl-4-hydro-1,3-benzodioxin-6-ol (PBD) has the best comprehensive effect among stabilizers used individually, but that butylated hydroxytoluene (BHT) has the least impact on the color of spinning dope and resulting fibers. Overall, compound stabilizers are more effective than individual stabilizers. The compound stabilizer comprising BHT:PBD = 1:1 influenced the color of spinning dope the least, so the obtained fibers had the highest whiteness. The compound stabilizer comprising PG:PBD = 9:1 (PG = propyl gallate) had the most significant stabilizing effect on spinning dope, and the obtained fibers had the greatest breaking strength. © 2021
Keywords
Cellulose solution; Lyocell fiber; N-methylmorpholine-N-oxide; Stabilizer; Whiteness
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