对纳米蒙脱土(OMMT)进行改性,用改性后的蒙脱土对环氧丙烯酸酯(EA)涂层进行改性,并对改性后的OMMT/EA涂层进行了力学性能和热性能测试.研究表明,加入质量分数2％改性蒙脱土的OMMT/EA涂层性能最好.OMMT的加入可提高涂层的拉伸性能、附着力和硬度,并有效提高EA涂层的玻璃化温度,降低其线性热膨胀系数.电镜和XRD分析表明,OMMT在OMMT/EA涂层中以单层片层均匀分布.将涂有该涂层的光纤布拉格光栅(FBG)传感器埋入复合材料中,经一定温度与压力成型后,与涂有未改性EA涂层的FBG传感器采集到的信号进行对比,发现改性后涂层可明显降低FBG传感器信号滞后现象.
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