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首页> 外文期刊>Journal of Vinyl & Additive Technology >Fabrication and Properties of Nano-ZnO/Glass-Fiber-Reinforced Polypropylene Composites
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Fabrication and Properties of Nano-ZnO/Glass-Fiber-Reinforced Polypropylene Composites

机译：纳米ZnO /玻璃纤维增​​强聚丙烯复合材料的制备与性能

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摘要

Polypropylene (PP) is widely used in many fields, such as automobiles, medical devices, office equipment, pipe, and architecture. However, its high brittle transformation temperature, low mechanical strength, dyeing properties, antistatic properties, and poor impact resistance, considerably limit its further applications. Nano-ZnO treated by KH550 coupling agent and glass fibers (GFs) were introduced in order to improve the mechanical performance and flowability of PP in this research. The crystallization behavior and microstruc-ture of nano-ZnO/GFs/PP hybrid composites were analyzed by differential scanning calorimetry, transmission electron microscopy, and scanning electron microscopy. The effect of crystallization behavior on the mechanical properties of the nanocomposites was investigated and analyzed. The results indicated that nano-ZnO surface-coupled by KH550 could be uniformly dispersed in the PP matrix. The incorporation of nano-ZnO and GFs resulted in increases of the crystallization temperature and crystallization rate of PP and a decrease of the crystallization degree. The introduction of nano-ZnO and GFs also enhanced the tensile strength and impact toughness of the hybrid composites and improved their fluidity. Composites containing 2% of nano-ZnO and 40% of GFs possessed the optimum mechanical properties.
机译：聚丙烯（PP）广泛用于许多领域，例如汽车，医疗设备，办公设备，管道和建筑。然而，其高的脆性转变温度，低的机械强度，染色性能，抗静电性能和差的抗冲击性大大限制了其进一步的应用。为了提高聚丙烯的机械性能和流动性，介绍了用KH550偶联剂和玻璃纤维（GFs）处理的纳米ZnO。通过差示扫描量热法，透射电子显微镜和扫描电子显微镜分析了纳米ZnO / GFs / PP杂化复合材料的结晶行为和微观结构。研究和分析了结晶行为对纳米复合材料力学性能的影响。结果表明，KH550表面偶联的纳米ZnO可以均匀分散在PP基体中。纳米ZnO和GFs的掺入导致PP的结晶温度和结晶速率的增加以及结晶度的降低。纳米ZnO和GF的引入还增强了杂化复合材料的拉伸强度和冲击韧性，并改善了它们的流动性。含有2％的纳米ZnO和40％的GF的复合材料具有最佳的机械性能。

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