Films from an Aqueous Suspension of Alkaline Pretreated and Fine Milled Chicken Feathers  

作　　者：Mika Vaha-Nissi Panu Lahtinen Emmi Nuutinen Timo Kaljunen Tiina Pohler 

机构地区：[1]VTT Technical Research Centre of Finland Ltd., Espoo, Finland

出　　处：《Materials Sciences and Applications》2020年第1期27-43,共17页材料科学与应用期刊（英文）

基　　金：supported by KaRMA2020 project;the European Union’s Horizon 2020 Research and Innovation program under Grant Agreement n°723268.

摘　　要：The purpose was to test the feasibility of preparing cast films directly from an aqueous suspension of alkaline pretreated and fine milled chicken feathers, and to evaluate the impact of different additives on film formation and the tensile properties of the resulting films. The feather suspension consisted of stiff and sharp-pointed fibers together with more round-shaped fines. Films cast from this suspension were opaque and porous. While films without additives were fragile with drying-induced defects, film formation was improved with additives, especially with ethanolamine and maleic acid at 20% and 30% concentrations. A synergistic plasticizing effect was observed with ethanolamine and formamide, and strength of the films was improved with sodium alginate. However, the overall impact of additives on the tensile properties in general and strain at break in specific was limited. This was likely due to the dominating role of the porous film structure and the stiff fibers with a limited reactivity towards the additives.The purpose was to test the feasibility of preparing cast films directly from an aqueous suspension of alkaline pretreated and fine milled chicken feathers, and to evaluate the impact of different additives on film formation and the tensile properties of the resulting films. The feather suspension consisted of stiff and sharp-pointed fibers together with more round-shaped fines. Films cast from this suspension were opaque and porous. While films without additives were fragile with drying-induced defects, film formation was improved with additives, especially with ethanolamine and maleic acid at 20% and 30% concentrations. A synergistic plasticizing effect was observed with ethanolamine and formamide, and strength of the films was improved with sodium alginate. However, the overall impact of additives on the tensile properties in general and strain at break in specific was limited. This was likely due to the dominating role of the porous film structure and the stiff fibers with a limited reactivity towards the additives.

关 键 词：FEATHER FILMS Mechanical Properties 

分 类 号：TB3[一般工业技术—材料科学与工程]