期刊
POLYMER DEGRADATION AND STABILITY
卷 98, 期 5, 页码 980-987出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2013.02.011
关键词
Thermal degradation; Keratin; Polypropylene; Composites
资金
- Fondazione Cariplo-Italy
Wool fibres were submitted to green hydrolysis with superheated water in a microwave reactor, in view of potential valorisation of keratin-based wastes. The keratin hydrolysates containing free amino acids, peptides and low molecular weight proteins, were exploited as a biofiller in preparing polypropylene matrix composites. Maleic anhydride grafted polypropylene was used as a compatibilizer to promote dispersion of keratin. The thermal and mechanical properties were investigated in dependence of keratin and compatibilizer loadings, and related to morphological characteristics. The presence of keratin preserved the molecular weight of the polymer matrix during the processing and gave good overall mechanical properties to the compatibilized composites. The keratin hydrolysates strongly interfered on the crystallization behaviour and thermo-oxidative degradation of the polypropylene. The increase of polypropylene crystallization rate and the enhancement of thermal stability were observed as a function of the keratin amount in the compatibilized composites. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据