摘要
对SiO2/聚氨酯丙烯酸酯(PUA)-环氧丙烯酸酯(EA)复合材料及PUA-EA纯树脂体系进行热失重及热分解DSC对比分析。结果表明,SiO2/PUA-EA热分解开始温度为143.8℃,在320℃出现大量失重现象,均高于PUA-EA体系。SiO2/PUA-EA作为光栅涂层与裸纤和纯树脂涂层相比,更能准确监测复合材料固化过程,并且SiO2/PUA-EA固化后残余应力约为128kPa,低于之前报道。SEM显示,SiO2/PUA-EA与光纤内核之间结合良好,未出现分层现象。
Compared with polyurethane acrylate （PUA）-epoxy acrylate （EA）, the SiO2/PUA-EA shows better thermal properties by thermogravimetry analysis （TGA） and differential scanning calorimetry （DSC）. The initial decomposition temperature is 143.8 ℃, and the most mass loss occur at 320 ℃ for SiO2/PUA-EA, both of which are higher than those of pure resin. The SiO2/PUA-EA can be used as coating for FBG monitoring for curing of composites accurately. The residual stress for hybrid materials is 128 kPa, lower than that reported previously. SEM shows that no delamination occurs between the SiO2/PUA-EA and the core of optical fibers indicating their good binding.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2013年第6期135-138,共4页
Acta Materiae Compositae Sinica
