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Comparison of Rheological Characteristics and Mechanical Properties of Fossil-Based and Bio-Based Polycarbonate
Macromolecular Research ( IF 2.4 ) Pub Date : 2020-03-11 , DOI: 10.1007/s13233-020-8093-1 Young Hoan Choi , Min-Young Lyu
Macromolecular Research ( IF 2.4 ) Pub Date : 2020-03-11 , DOI: 10.1007/s13233-020-8093-1 Young Hoan Choi , Min-Young Lyu
Fossil-based PC, bisphenol-A polycarbonate (BPA-PC), is polymerized using bisphenol-A, which is derived from fossil-fuel based chemicals. Bio-based polycarbonate (bio-based PC) is polymerized using isosorbide, which is taken from plants. Accordingly, bio-based PC does not contain toxic polymerization chemicals. The rheological characteristics of fossil-based PC and bio-based PC samples, including viscosity, storage and loss moduli, and melt tension, were studied and compared. The mechanical properties of tensile behavior and impact strength were also measured and discussed. The shear viscosity curves and storage and loss moduli patterns of the bio-based PC were found to be somewhat different from those of fossil-based PC. The bio-based PC had higher tensile strength and elastic modulus than the fossil-based PC. The fossil-based PC exhibited a stress jump in the high strain region of the stress-strain curve, while the bio-based PC exhibited no stress jumps. The bio-based PC had a lower impact strength than the fossil-based PC. The cross-section of the fractured impact specimen of the bio-based PC showed only mirror regions, while that of the fossil-based PC showed both mirror regions and misted regions.
中文翻译:
化石基和生物基聚碳酸酯的流变特性和力学性能的比较
基于化石的PC,即双酚A聚碳酸酯(BPA-PC),是使用双酚A聚合而成的,双酚A是由化石燃料基化学物质衍生而来的。生物基聚碳酸酯(生物基PC)使用从植物中提取的异山梨醇进行聚合。因此,生物基PC不包含有毒的聚合化学物质。研究并比较了基于化石的PC和基于生物的PC样品的流变特性,包括粘度,储能和损耗模量以及熔体张力。还测量并讨论了拉伸性能和冲击强度的机械性能。发现基于生物的PC的剪切粘度曲线以及储能和损耗模量模式与基于化石的PC有所不同。生物基PC比化石基PC具有更高的拉伸强度和弹性模量。基于化石的PC在应力-应变曲线的高应变区域表现出应力跃迁,而基于生物的PC则没有应力跃迁。生物基PC的冲击强度低于化石基PC。生物基PC的断裂冲击试样的横截面仅显示镜面区域,而化石基PC的横截面显示镜面区域和雾化区域。
更新日期:2020-03-11
中文翻译:
化石基和生物基聚碳酸酯的流变特性和力学性能的比较
基于化石的PC,即双酚A聚碳酸酯(BPA-PC),是使用双酚A聚合而成的,双酚A是由化石燃料基化学物质衍生而来的。生物基聚碳酸酯(生物基PC)使用从植物中提取的异山梨醇进行聚合。因此,生物基PC不包含有毒的聚合化学物质。研究并比较了基于化石的PC和基于生物的PC样品的流变特性,包括粘度,储能和损耗模量以及熔体张力。还测量并讨论了拉伸性能和冲击强度的机械性能。发现基于生物的PC的剪切粘度曲线以及储能和损耗模量模式与基于化石的PC有所不同。生物基PC比化石基PC具有更高的拉伸强度和弹性模量。基于化石的PC在应力-应变曲线的高应变区域表现出应力跃迁,而基于生物的PC则没有应力跃迁。生物基PC的冲击强度低于化石基PC。生物基PC的断裂冲击试样的横截面仅显示镜面区域,而化石基PC的横截面显示镜面区域和雾化区域。