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首页> 外文期刊>Journal of Applied Polymer Science >Effect of graphene oxide on the molecules of a sodium alginate-krill protein composite system and characterization of the system's composite fiber morphology and mechanical properties
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Effect of graphene oxide on the molecules of a sodium alginate-krill protein composite system and characterization of the system's composite fiber morphology and mechanical properties

机译：氧化石墨烯氧化物对藻酸钠 - 磷虾蛋白复合体系分子的影响及体系复合纤维形态的表征及力学性能

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Graphene oxide (GO), sodium alginate (SA), and Antarctic krill protein (AKP) were blended to get functional fibers. These GO-SA-AKP composite fibers were obtained by conventional wet spinning with 5% calcium chloride as a coagulation solution. The intermolecular interactions of the GO-SA-AKP composite system were characterized by Fourier transform infrared spectroscopy. The morphology, crystallinity, thermal stability, and mechanical properties of the GO-SA-AKP composites were investigated with scanning electron microscopy, X-ray diffraction, thermogravimetric analysis, and differential scanning calorimetry. The results show that the number of GO layers decreased gradually during the process of wet spinning. The addition of GO promoted an increase in intramolecular hydrogen bonding and a decrease in intermolecular hydrogen bonding in the composite system. With increasing GO mass fraction, the intermolecular hydrogen-bond content, crystallinity, breaking strength, and thermal stability in the composite system increased first and then decreased. At the same time, the mass fraction of GO and the draw ratio had significant effects on the surface morphologies of the composite fibers. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46642.
机译：石墨烯氧化物（GO），藻酸钠（SA），和南极磷虾蛋白（AKP）混合以获得功能性纤维。这些GO-SA-AKP复合纤维通过常规的湿法纺丝，用5％氯化钙作为凝固溶液获得。通过傅立叶GO-SA-AKP复合体系的分子间的相互作用进行了表征变换红外光谱。形态，结晶度，热稳定性，和GO-SA-AKP复合材料的机械性能与扫描电子显微镜，X射线衍射，热重分析和差示扫描量热法进行了研究。结果表明，GO层数湿法纺丝的过程中逐渐减小。添加GO的促进了分子内氢键的增加和分子间氢键的复合系统的降低。随着GO质量分数，分子间氢键含量，结晶度，断裂强度，和在所述复合系统的热稳定性增加，然后再下降。与此同时，GO的质量分数和拉伸比对复合纤维的表面形态显著影响。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018年，135，46642。

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