OALib Journal期刊
ISSN: 2333-9721
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有机溶剂纳米sio2溶胶的制备和性能
Abstract:
?提出了一种经济、简便、实用的制备沸点高于100℃的有机溶剂sio2溶胶的方法,可制备出无色、澄清、透明、浓度为5%~10%的有机硅溶胶,在ph值6~9范围内稳定.使用h3csi(och3)3作为封端剂可阻止sio2溶胶凝胶化,其作用机制在于:通过封端剂分子水解出的活性羟基,与sio2粒子表面活性基团反应,阻断溶胶粒子的生长,使溶胶稳定性提高.以这种有机溶剂纳米sio2溶胶作为铝电解电容器工作电解液中添加剂,可改善电容器的性能,使其耐压有较大提高.
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