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首页> 外文期刊>Polymer Composites >The Effects of Functionalization on the Thermal and Tribo-Mechanical Behaviors of Neat and Grafted Polyethylene Nanocomposites
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The Effects of Functionalization on the Thermal and Tribo-Mechanical Behaviors of Neat and Grafted Polyethylene Nanocomposites

机译：功能化对纯净和接枝聚乙烯纳米复合材料热力学和摩擦力学行为的影响

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This article presents research on the influence of a coupling agent γ-methacryloxypropyltrimethoxysilane (MEMO) and cross-linking agent dicumyl peroxide (DCP) on thermal and nanomechanical properties of neat and waste polyethylene (WPE) as well as their blend. Modification of nanosilica by silanization was performed under supercritical conditions of carbon dioxide-ethanol mixture. Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), indentation as well as scratch testing at nanoscale were employed for characterization of the polymer matrix with unmodified and modified nano-SiO2 particles. Low amounts of the peroxide and silanized nano-SiO2 particles in the composite formulation significantly improved thermal and tribo-mechanical behavior at nanoscale.
机译：本文介绍了偶联剂γ-甲基丙烯酰氧基丙基三甲氧基硅烷（MEMO）和交联剂过氧化二枯基（DCP）对纯聚乙烯和废聚乙烯（WPE）及其共混物的热和纳米机械性能的影响的研究。通过硅烷化改性纳米二氧化硅是在二氧化碳-乙醇混合物的超临界条件下进行的。使用傅立叶变换红外光谱（FTIR），热重分析（TGA），扫描电子显微镜（SEM），压痕以及纳米级划痕测试来表征未改性和改性的纳米SiO2颗粒的聚合物基质。复合配方中少量的过氧化物和硅烷化的纳米SiO2颗粒可以显着改善纳米级的热和摩擦机械性能。

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