以大孔二氧化硅膜为无机/有机界面过渡层的层合玻璃微结构设计与力学行为研究

层合玻璃 界面过渡层 大孔二氧化硅膜 力学行为
冯志军 2014-01 项目
There is the performance difference between the inorganic and organic interface in the inorganic-organic laminated glass which lead to interface unglued failure. Thus,it has major constraints that the inorganic-organic laminated glass is widely used as the aircraft windshield. In this project, based on reducing the performance difference of the interface between the inorganic and organic materials, the macroporous silica film was prepared on the inner surface of the inorganic glass as the transition layer of material properties, and then were thermoformed for laminated glass with the polyurethane, polymethyl methacrylate together. The effect between the preparation parameters and micro-structure of macroporous silica film, the lamination process of laminated glass on mechanical strength, thermal stress distribution and fatigue life were studied, respectively. On this basis, a theoretical prediction model of micro-structure of macroporous silica film-laminated glass mechanical properties was established. The project has certain theoretical significance and application value to solve the unglued failure in the inorganic-organic laminated glass, and to improve the reliability and service life.
无机/有机层合玻璃中无机/有机界面之间存在较大的性能差异,从而导致制无机/有机界面容易脱胶失效,这是制约无机/有机层合玻璃作为飞机风挡玻璃广泛使用的主要因素。本项目从减小层合玻璃中无机/有机材料之间性能差异入手,通过在无机玻璃内表面上制备大孔二氧化硅膜作为材料性能过渡层,然后与聚氨酯、有机玻璃一起热压成型为层合玻璃。分别研究大孔二氧化硅膜制备参数、胞元微结构以及层合工艺对层合玻璃力学强度、热应力分布以及疲劳寿命的影响规律;在此基础上,建立大孔二氧化硅膜界面微结构- - 层合玻璃力学性能理论预测模型。本项目的研究对解决无机/有机层合玻璃的脱胶失效,提高其可靠性和使用寿命具有一定的理论指导意义和应用价值。