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采用低温水热合成法合成周期性介孔有机硅(PMOs)材料,并制备了具有网络结构的PMOs/PMMA纳米复合材料。通过FT-IR、XRD、TEM和SEM等方法对其结构和性能进行了表征。结果表明:通过改变1,2-双-三乙氧基硅基乙烷(BTESE)的物质的量比例,可获得宏观形貌从立方(Fm3m)结构变化到纳米空心小球的一系列PMOs材料。在PMOs/PMMA纳米复合材料中,PMOs仍保持其原有的介观结构。在PMOs含量较低时对PMMA拉伸强度和模量、弯曲强度和模量增强作用较为明显,但增韧效果较差。
Periodic mesoporous organic silicon (PMOs) materials were synthesized by low temperature hydrothermal synthesis and PMOs / PMMA nanocomposites with network structure were prepared. Its structure and properties were characterized by FT-IR, XRD, TEM and SEM. The results show that a series of PMOs with macroscopic morphologies from cubic (Fm3m) to nanospheres can be obtained by changing the mass ratio of 1,2-bis-triethoxysilane (BTESE) . In PMOs / PMMA nanocomposites, PMOs still retain their original mesostructures. When the content of PMOs is low, the tensile strength and modulus, flexural strength and modulus enhancement of PMMA are obvious, but the toughening effect is poor.