聚氨酯/SiO2涂料结构的表征

China Leather(2006)

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Abstract
利用UV-2501PC型紫外分光光度仪、傅立叶变换红外光谱仪、OCAH200视频高速接触测量仪和SPA-400型原子力显微镜,研究了聚氨酯/SiO2材料性能.结果表明:其红外吸收有明显变化;纳米SiO2涂膜的紫外屏蔽增强,耐老化性能提高.乳液的表面张力几乎无变化,接触角增大25°左右.纳米SiO2在涂膜中的分布比较均匀,其直径在50~150nm之间.
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Key words
film,polyurethane,characterization,nano-SiO_2
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