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- 저자 : Yifang Mi (검색결과 1 건)
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Moisture-Induced Reversible Softening of Polyacrylates-Stiffened Cotton Fabrics
Yifang Mi,Die Wu,Yongxiang Li,Xiaoxia Cheng,Xiaobo Yang,Shuxian Lan,Zhihai Cao 한국섬유공학회 2022 Fibers and polymers Vol.23 No.5
The stiffening finishing of cotton fabrics has been widely used in textile industry. However, the notorious softeningof stiffened fabrics attenuated the stiffening style during storage. To reveal crucial factors responsible for the softeningphenomenon and elucidate the mechanism, cotton twill woven fabrics finished with polyacrylates (PAcr) stiffening agentswere systematically analyzed. The sensitive index to stiffening effect, i.e. stiffness value, was found which can fully assessthe handle changes of stiffened fabrics. The stiffness value of stiffened cotton fabrics decreased rapidly in the initial stage ofstorage, and the declining extent was related to the hygroscopic behavior of stiffened fabrics. Based on the hygroscopickinetic data, hygroscopic-drying cyclic experiments, and morphology characterization, it was found that interfaces betweencotton fibers and stiffening agent film were maintained during the whole hygroscopic process, and the reason for handlechanges of stiffened cotton fabrics was ascribed to the reversible moisture-induced plasticization effect on PAcr stiffeningagent film and cotton fibers. Furthermore, the underlying softening mechanism was further proposed in this work. Collectively, the present results are crucial for anti-softening in stiffening finishing of hydrophilic fabrics and an importantpart for the research on the mechanism of softening of stiffened fabrics.
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