Long-term performance of β-nucleated toughened polypropylene-biocarbon composites

被引：14
作者：
Behazin, Ehsan [1 ,2 ]
Rodriguez-Uribe, Arturo [2 ]
Misra, Manjusri [1 ,2 ]
Mohanty, Amar K. [1 ,2 ]
机构：
[1] Univ Guelph, Sch Engn Thornbrough Bldg, 50 Stone Rd East, Guelph, ON N1G 2W1, Canada
[2] Univ Guelph, Bioprod Discovery & Dev Ctr, Dept Plant Agr Crop Sci Bldg, 50 Stone Rd East, Guelph, ON N1G 2W1, Canada
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2018年 / 105卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Biocomposites; Environmental degradation; Mechanical properties; Thermal analysis; METALLOCENE ISOTACTIC POLYPROPYLENE; MECHANICAL-PROPERTIES; THERMOOXIDATIVE DEGRADATION; THERMAL-STABILITY; MORPHOLOGY; AGENT; MICROSTRUCTURE; NANOCOMPOSITES; BEHAVIOR; PHASE;
D O I：
10.1016/j.compositesa.2017.11.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Thermoplastic polyolefins or TPOs are of widespread use in the automotive industry. In this study, the long-term performance of biocarbon based TPOs is investigated for the first time. The durability of these bio-based composites with and without hindered phenolic antioxidants was investigated under accelerated heat aging for 1000 h. Thermo-oxidative degradation was tracked along the specimen's thickness using energy dispersive spectroscopy. Performance of the biocomposites was gauged by Izod notched impact and tensile properties. Microstructural changes were monitored by differential scanning calorimetry and dynamic mechanical analysis. While the tensile properties were sufficiently sustained using the antioxidants after this test, the impact strength failed to retain initial values. The morphological changes in the beta crystal phase were recognized as the primary factor in the reduction of the impact strength of the biocomposites. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：274 / 280
页数：7
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