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1170

Preparation and Characterization of Keratin-Polyvinyl Alcohol Composite Film

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Last updated: 22 Jan 2023

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Abstract

  AN ECONOMICALLY feasible method for preparation of ……..keratin/ polyvinyl alcohol composite was proposed. Keratinous materials; namely wool waste, feathers, camel hair, and human hair were dissolved in selected reagents. Dissolution of the said keratinous materials was carried out using alkali metal hydroxide or alkaline earth metal hydroxide in presence of swelling agent and reducing agent. A keratin-polyvinyl alcohol composite film was prepared by casting both materials in aqueous solution. Polyvinyl alcohol acts as a carrier for the keratinous material. The range of viscosity of the obtained keratin-polyvinyl alcohol composite, which is suitable to be spread into films, was assessed. The effect of crosslinking of keratin-polyvinyl alcohol film on its mechanical properties as well as hygroscopic properties was monitored. Liquid chromatography mass spectrometric analysis elucidated that the molecular mass of the obtained soluble keratin is not less than 2 Dalton. The elemental analysis of the said composite divulges that only limited change in the carbon, hydrogen, sulphur and nitrogen contents was recorded, compared with the native keratinous substrates.

DOI

10.21608/ejchem.2012.1170

Keywords

Keratin, feather, film, Plasticizer, Polyvinyl alcohol and Wool

Volume

55

Article Issue

5

Related Issue

283

Issue Date

2012-10-01

Receive Date

2012-09-18

Publish Date

2012-10-30

Page Start

491

Page End

507

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_1170.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=1170

Order

4

Type Code

292

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

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Article

Created At

22 Jan 2023