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Correlation of mechanical and tribological properties of organosilane modified cenosphere filled high density polyethylene

机译：有机硅烷改性的空心球填充高密度聚乙烯的力学和摩擦学性能的相关性

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摘要

Flyash cenosphere obtained as industrial waste from thermal power plants is an effective cost and weight reducing filler for developing lightweight polymer composites. Cenospheres as fillers also help in improving the mechanical properties of base polymer matrices. However, the desired enhancement depends on homogeneous dispersion of cenospheres and excellent compatibility between cenospheres and polymer matrix. In the present work, this was achieved by modifying the surface of cenospheres using silane treatment and incorporating them in a versatile thermoplastic high density polyethylene. The silane treatment resulted in considerable improvement in the impact strength and density of the composites which ultimately translated into better wear performance of composites even in severe abrasive conditions. Lancaster-Ratner correlation between mechanical properties and wear resistance was found to be almost linear for the silane treated cenospheres filled composites unlike the untreated cenospheres filled composites. Scanning electron microscopy was used to understand the wear modes and mechanisms and supported using X-ray diffractograms.
机译：从火力发电厂作为工业废料获得的粉煤灰空心球是开发轻质聚合物复合材料的有效成本和减轻重量的填料。空心球作为填料也有助于改善基础聚合物基体的机械性能。但是，所需的增强取决于空心球的均匀分散以及空心球与聚合物基质之间的优异相容性。在当前的工作中，这是通过使用硅烷处理改性空心球的表面并将其并入通用的热塑性高密度聚乙烯中来实现的。硅烷处理导致复合材料的冲击强度和密度有了显着提高，即使在严酷的磨蚀条件下，最终也转化为复合材料具有更好的耐磨性能。发现与未处理的空心球填充的复合材料不同，硅烷处理的空心球填充的复合材料的机械性能和耐磨性之间的兰卡斯特-拉特纳相关性几乎是线性的。扫描电子显微镜用于了解磨损方式和机理，并通过X射线衍射图进行支持。

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