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Surface modification of poly(ethylene terephthalate) (PET) fibers by a cutinase from Fusarium oxysporum

Paper ID Volume ID Publish Year Pages File Format Full-Text
34289 45016 2015 8 PDF Available
Title
Surface modification of poly(ethylene terephthalate) (PET) fibers by a cutinase from Fusarium oxysporum
Abstract

•FoCut5a cutinase is capable of modifying the surface of PET fabrics.•The process was optimized at 40 °C, pH 8 and enzyme loading of 1.92 mg/g fabric.•Spectroscopic, chromatographic and dyeability analyses confirmed PET modification.•The surface of PET fabric was modified maintaining its bulk properties.

Synthetic polyester fabrics occupy a great part of the textile industry production satisfying variable ordinary needs. Nonetheless, their high hydrophobicity constitutes an important weakness that impedes process manufacture, as well as permeability and evaporation of sweat when used in clothing industry. The enzymatic treatment of these materials is a modern and eco-friendly procedure that aims at the increase of the hydrophilicity through superficial modification. In this study, the enzymatic surface hydrolysis of poly(ethylene terephthalate) (PET) fabric is succeeded using a recombinant cutinase from Fusarium oxysporum. The effect of various parameters is studied for the enzymatic modification of PET, such as temperature, pH, enzyme loading and reaction time. The optimal parameters are found to be 40 °C, pH 8, and 1.92 mg enzyme loading per gram of fabric. The controlled enzymatic hydrolysis of PET textile is further confirmed and characterized using various spectroscopic and analytical methods, including Fourier Transform Infrared (FT-IR) in the Attenuated Total Reflectance mode (ATR) and X-ray photoelectron spectroscopy (XPS). Tensile test and dyeability analyses were also employed achieving a K/S increase up to 150%, confirming the successful surface modification without degrading the quality of the starting material.

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Keywords
Enzymatic modification; Poly(ethylene)terephthalate (PET) fabric; Cutinase; FT-IR ATR; XPS; Dyeing
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Surface modification of poly(ethylene terephthalate) (PET) fibers by a cutinase from Fusarium oxysporum
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 50, Issue 11, November 2015, Pages 1885–1892
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us