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首页> 外文期刊>Journal of Applied Polymer Science >Novel electron beam-modified surface-coated silica fillers: Physical and chemical characteristics
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Novel electron beam-modified surface-coated silica fillers: Physical and chemical characteristics

机译：新型电子束改性的表面涂层二氧化硅填料：物理和化学特性

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A novel process of surface modification of silica fillers has been performed by coating with an acrylate monomer, trimethylol propane triacrylate (TMPTA) and with a silane coupling agent, triethoxy vinyl silane (TEVS), followed by electron beam irradiation of these coated fillers. The surface-modified fillers have been characterized by Fourier-Transform Infrared Analysis (FTIR), Electron Spectroscopy for Chemical Analysis (ESCA), Contact angle measurements by dynamic wicking method, Scanning Electron Microscopy (SEM), Energy dispersive X-ray spectroscopy (EDX), Transmission Electron Microscopy (TEM), Fractal studies, Thermogravimetric analysis (TGA), and X-ray diffraction (XRD) studies. Presence of the acrylate and the silane coupling agent on the modified fillers is confirmed from the above studies. The contact angle measurements suggest a significant improvement in hydrophobicity of the treated fillers, which is supported by water flotation test. After irradiation and acrylate treatment an increase in filler aggregation is observed, which is not as significant in the case of silanized silica filler. However, XRD studies demonstrate that the entire modification process does not alter the bulk properties of the fillers. (C) 2002 John Wiley Sons, Inc. [References: 29]
机译：通过用丙烯酸酯单体三羟甲基丙烷三丙烯酸酯（TMPTA）和硅烷偶联剂三乙氧基乙烯基硅烷（TEVS）进行涂覆，然后对这些涂覆的填料进行电子束辐照，进行了二氧化硅填料表面改性的新方法。表面改性的填料已通过傅里叶变换红外分析（FTIR），化学分析电子能谱（ESCA），动态芯吸法测量接触角，扫描电子显微镜（SEM），能量色散X射线能谱（EDX）进行了表征），透射电子显微镜（TEM），分形研究，热重分析（TGA）和X射线衍射（XRD）研究。由上述研究证实了改性填料上丙烯酸酯和硅烷偶联剂的存在。接触角的测量表明，经水浮选试验证明，处理过的填料的疏水性有显着改善。辐照和丙烯酸酯处理后，观察到填料聚集的增加，这在硅烷化二氧化硅填料的情况下并不明显。但是，XRD研究表明，整个改性过程不会改变填料的整体性能。 （C）2002 John Wiley Sons，Inc. [参考：29]

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