摘要
通过溶液共混法制备了环氧树脂/纳米介孔MCM 41和环氧树脂/纳米SiO2复合材料,研究了结构不同的填充颗粒、不同的填充颗粒含量及其复合材料的分散性与力学性能。结果表明,由于这种具有双重纳米结构(纳米级颗粒尺寸和纳米级的介孔结构)的介孔分子筛MCM 41能与基体形成新型网络复合结构,因此在纳米介孔MCM 41的含量适当(小于10%,质量分数,下同)时,纳米介孔MCM 41能均匀地分散在环氧树脂基体中,有效地提高复合材料的拉伸强度。而含量较高(不低于5%)的实心纳米SiO2将在环氧树脂基体中产生大量团聚体,使复合材料的拉伸强度降低。
Two kinds of epoxy resin/nano-sized mesoporous MCM-41 and epoxy resin/nanometer-SiO2 composites were prepared by solution blending. The effect of particulates with different structure and the content of the particulates on the disperse properties and mechanical properties was studied. The result showed that nano-mesoporous MCM-41 (less than 10%, mass fraction) could disperse homogeneously in the epoxy resin because dual nano-structure MCM-41 (nano-sized particle and nano-sized pore structure) could form novel nanonetwork composite with the matrix, as a result the tensile properties were raised efficiently. When the content of solid nanometer-SiO2 was equal to or more than 5% (mass fraction), the tensile properties of the composite decreased because of the agglomerates of nanometer-SiO2.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2004年第9期60-64,共5页
Journal of Materials Engineering
