硅烷偶联剂KH550改性白炭黑的研究
Yunnan Chemical Technology（2023）
Abstract
利用硅烷偶联剂KH550改性二氧化硅(SiO2),使丙胺基团接枝在SiO2上,得到氨基化二氧化硅(N-SiO2).分别采用红外光谱(FTIR)、热重分析(TGA)、元素分析(EA)、粒径分析(DLS)、扫描电子显微镜(SEM)和接触角表征了SiO2改性前后的结构和性能.结果表明,硅烷偶联剂KH550成功接枝在SiO2上,改性后表面变得更粗糙,D50粒径由17.69μm增大到38.38μm,水接触角从0°提高到25.84°,改善了其亲水性.
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Key words
silica,silane coupling agent KH550,graft modification
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