Hydrolysis of cuprammonium rayon by endocellulases

Haga, Toshio

doi:10.1002/1097-4628(20010401)79:14<2543::aid-app1063>3.0.co;2-b

J. Appl. Polym. Sci.

2001

DOI: 10.1002/1097-4628(20010401)79:14<2543::aid-app1063>3.0.co;2-b

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Hydrolysis of cuprammonium rayon by endocellulases

Toshio Haga¹

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2020

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“…Attempts have already been made toward improving the surface of rayon fibers by enzymatic treatments. [3][4][5][6][7] However, these attempts have been mainly aimed at improving their flexibility and/or stainability. 6,7 In addition, few studies have been conducted on the porosification of the interior of rayon fibers.…”

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“…[3][4][5][6][7] However, these attempts have been mainly aimed at improving their flexibility and/or stainability. 6,7 In addition, few studies have been conducted on the porosification of the interior of rayon fibers. Therefore, this study aims to improve their adsorption capacity by increasing the surface roughness of the rayon fibers by porosifying their interior while treating their surface with cellulase.…”

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Improving the adsorption performance and surface roughening of rayon fibers via enzymatic treatment with cellulase

Hayashi

Watanabe

Sadatomi

et al. 2020

Textile Research Journal

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In recent years, expectations have increased for the development of filters for removing air pollutants. Rayon fibers have rough surfaces and excellent adsorption characteristics. Therefore, rayon is a promising material for such filters. By further roughening its surface, its adsorptivity to substances such as volatile organic compounds can likely be improved. The surface of rayon fibers was roughened via wet spinning carried out by adding oleic acid to a raw viscose. As a result, porous fibers containing several pores with a diameter of about 0.5–1.0 µm were obtained. A weight reduction treatment of the porous rayon fibers with cellulase, a cellulose-degrading enzyme, resulted in the appearance of several streaks and asperities on their surfaces. To investigate the adsorption behavior of the rayon fibers after cellulase treatment, dye adsorption was examined using an aqueous methylene blue solution. The porous rayon fibers adsorbed much more dye than the regular fibers. In addition, the fibers absorbed more dye after treatment with cellulase than without treatment in both fibers. The deodorizing function of the rayon fibers was also investigated using ammonia gas. The porous rayon fibers treated with cellulase had a very high deodorizing effect. In the proposed study, rayon fibers (which are porous inside) were treated with cellulase, and their surface was found to be considerably rough.

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confidence: 99%

mentioning

confidence: 99%

Improving the adsorption performance and surface roughening of rayon fibers via enzymatic treatment with cellulase

Hayashi

Watanabe

Sadatomi

et al. 2020

Textile Research Journal

View full text Add to dashboard Cite

show abstract

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Hydrolysis of cuprammonium rayon by endocellulases

Cited by 1 publication

References 12 publications

Improving the adsorption performance and surface roughening of rayon fibers via enzymatic treatment with cellulase

Improving the adsorption performance and surface roughening of rayon fibers via enzymatic treatment with cellulase

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