Journal
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
Volume 33, Issue 3, Pages 1203-1208Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.msec.2012.12.011
Keywords
Biodegradable films; Thermoplastics; Feathers; Crosslinking
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Funding
- Nebraska Environmental Trust, Agricultural Research Division at the University of Nebraska-Lincoln, Multi-State Project, USDA Hatch Act [S-1054]
- China Scholarship Council
- Doctoral Dissertation Innovation Program of Donghua University [BC201040]
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We demonstrate a novel approach of developing thermoplastic films from feathers by alkaline hydrolysis and crosslinking with citric acid. Unlike previous approaches that used toxic chemicals, complicated and/or expensive methods to develop films, in this research, feathers were hydrolyzed using various concentrations of alkali and the hydrolyzed feathers were compression molded into films using glycerol as plasticizer and crosslinked with citric acid to improve water stability. Alkali hydrolyzed feathers could be compression molded into films with tensile strength of 5.9 MPa and elongation of 31.7% but had poor wet strength. Feather films crosslinked with citric acid had tensile strength of 1.9 MPa and elongation of 24.6% after being in 90% humidity at 21 C for 24 hours. Alkaline hydrolysis and citric acid crosslinking provides an opportunity to develop inexpensive and biodegradable thermoplastics from the inexpensive, renewable and sustainable poultry feathers. (C) 2012 Elsevier B.V. All rights reserved.
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