Feather meal-based thermoplastics: Methyl vinyl ether/maleic anhydride copolymer improves material properties |
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Authors: | Arun Ghosh Richard S Carran Anita J Grosvenor Santanu Deb-Choudhury Stephen R Haines Jolon M Dyer |
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Institution: | 1.Food and Bio-Based Products Group, AgResearch,Cnr Springs Rd & Gerald St,Canterbury,New Zealand |
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Abstract: | The poultry meat processing industry produces large amounts of feather meal, which is traditionally used as lowvalue plant fertilizer or fish nutrient. A higher value application for feather meal is described in this paper - a thermal blending and compression molding method to create compostable composites out of environmentally friendly materials: feather meal, glycerol, and a biodegradable copolymer of methyl vinyl ether and maleic anhydride (MVEMA). The composite’s mechanical, microstructural and chemical characteristics are described. Feather meal plasticized only with glycerol is mechanically fragile, with average tensile strength of 1.7 MPa, Young’s modulus of 296 MPa and strain-at-failure of 0.6 %. With the addition of MVEMA copolymer, feather meal is transformed into a ductile plastic composite, with tensile modulus reduced 2- to 5-fold and strain-at-failure increased 4- to 25-fold. These properties are ideal for creating feather mealbased compostable bioplastics for agricultural and industrial applications. |
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