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Surface Modification of Polyester Fabrics by Enzyme Treatment

Authors
Lee, So HeeSong, Wha Soon
Issue Date
Feb-2010
Publisher
KOREAN FIBER SOC
Keywords
PET fabric; Lipase; Cutinase; Moisture regain; Surface Wettability
Citation
FIBERS AND POLYMERS, v.11, no.1, pp.54 - 59
Journal Title
FIBERS AND POLYMERS
Volume
11
Number
1
Start Page
54
End Page
59
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/13276
DOI
10.1007/s12221-010-0054-4
ISSN
1229-9197
Abstract
In this study,, the effect enzymatic hydrolysis using lipase and cutinase on poly(ethyleneterephthalalte) (PET) fabrics was investigated in an attempt to improve the hydrophilicity of these fabrics. The hydrolytic activity of the enzymes was expressed for variations in pH levels, temperatures, enzyme concentrations, and treatment times. The effects of using a nonionic surfactant were e,examined by measuring, moisture regain and Surface wettability. Finally, the fabric characteristics that were affected by enzyme treatment were evaluated by tensile strength and scanning electron microscopy. The optimal treatment conditions for lipase were determined to be a pH of 4.2, a temperature of 50 degrees C a lipase concentration of 100 and a treatment time of 90 min those for cutinase were determined to be a PH of 9.0, a temperature of 50 degrees C, a cutinase concentration of 100 %, and a treatment tune of 60 min. At optimal enzymatic treatment conditions, we got the significant results of increase on the moisture regain and the water contact angle (WCA) and water absorbency effectively decreased. Triton X-100 facilitated cutinase hydrolysis oil PET fabrics; however, it was ineffective for lipase. With enzymatic treatment, the tensile strength did not decrease.
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