【摘要】 为了考察正硅酸乙酯(TEOS)对材料性能的影响,采用溶胶-凝胶法制备了TEOS改性的γ-环氧丙基醚丙基三甲氧基硅烷(GPMS)有机-无机杂化材料,并用浸渍法使其在玻璃基体上成膜.利用红外光谱、核磁共振谱和原子力显微镜对GPMS-TEOS杂化材料的结构进行了表征,采用差热分析仪、纳米硬度测试仪和扫描分光光度计等对其物化性能进行了测试.结果表明,制得的材料具有纳米级倍半硅氧烷结构,TEOS的含量对杂化体系性能有较大影响;当TEOS质量分数为15%～20%时,杂化体系的热稳定性、硬度和模量等性能最佳,并且具有良好的透光性.更多还原

【Abstract】 To investigate the effect of Tetraethoxysilanes (TEOS) on the property of materials, the (3-glycidoxypropyl) trimethoxysilane (GPMS) organic-inorganic hybrid materials modified by TEOS were prepared by a sol-gel method. Ormosil thin films were coated on glassic matrix by dip coating. FTIR, NMR and SPM were employed to analyze the chemical structure of the films. The chemical and physical properties were examined by DSC, Nano Indenter XP and scan spectrophotometer. It was found that the materials had the structure of nano-scale silsesquioxanes and TEOS content in hybrid films had great effect on properties. The films contain 15 wt % ～ 20 wt % TEOS exhibited the best characters. The hybrid material has good transmittance.更多还原