研究高密度聚乙烯与纳米二氧化硅复合材料的性能

A. Yadav, V. P. Singh, Amit Kumar, Yatika Gori, Anil Kumar
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引用次数: 0

摘要

本文研究了高密度聚乙烯(HDPE)和二氧化硅纳米颗粒(SiO2 NPs)。通过注射成型制备了成分变化0- 10%的样品。HDPE和Sio2 NPs组分在微观水平上结合在一起,彼此不溶。这个阶段被称为“强化”阶段。软相和延展性相称为基体相。基体相为增强相提供基础支撑,保护增强相免受高温环境的影响,防止聚合物基复合材料(PMC)的降解。用电镜法对粒径为2 ~ 20 nm的二氧化硅颗粒进行了表征,其中二氧化硅为46.69%,氧为53.31%。它具有较大的比表面积/表面能。对HDPE/SiO2 NPs复合材料进行了力学和热分析。结果表明,在HDPE中加入SiO2纳米粒子可以提高HDPE的拉伸和弯曲性能。复合材料的冲击强度分别提高23.58%(添加二氧化硅纳米颗粒5%)和46.42%(添加二氧化硅纳米颗粒10%)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study the Properties of High-Density Polyethylene with Nano Particles Silica Composite
In this research work high density polyethylene (HDPE) and silica nanoparticles (SiO2 NPs) were studied. Samples having 0-10 % composition variation were prepared by injection molding. HDPE and Sio2 NPs constituents were combined at microscopic level and they are insoluble into each other. This phase is called as “Reinforcing” Phase. Soft and ductile phase is called Matrix phase. Matrix phase provides base support to the reinforcing phase and it is protecting the reinforcing phase from the hot environment against the degradation of Polymer Matrix Composites (PMC). Silica dioxide Particle in the form of powder was examined by Electron microscopic method (46.69% silica &53.31% oxygen) with size 2-20 nm. It has large specific surface area/surface energy. Sample of HDPE/SiO2 NPs composites were characterized by mechanical and thermal analysis. It was concluded that the including the SiO2 NPs into HDPE resulted in higher tensile and flexural properties. It has increased the impact strength of composite by 23.58% (5% by wt. addition of silica nanoparticles) and 46.42% (10% by wt. addition of silica nanoparticles).
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