不锈钢衬底上固化环氧树脂胶的SEM测量与分析  

SEM Measurements and Analyses of Epoxy Resin Adhesives on Stainless Steel Substrates

作　　者：张晓媛[1] 徐凡华[1] 雷婷[1] 鹿桂花[1,2] 周恒为[1,2] 

机构地区：[1]伊犁师范学院物理科学与技术学院,新疆凝聚态相变与微结构实验室,新疆伊宁835000 [2]南京大学物理学院,国家固体微结构重点实验室,江苏南京210093

出　　处：《伊犁师范学院学报（自然科学版）》2013年第4期46-51,共6页Journal of Yili Normal University：Natural Science Edition

基　　金：中国科学院"西部之光"人才培养计划(RCPY 200906);新疆凝聚态相变与微结构实验室2010年开放课题(XJDX0912-2010-01)

摘　　要：采用扫描电子显微镜和光学显微镜等方法,对在不锈钢衬底上固化后环氧树脂胶的显微结构进行了测量与分析.结果表明:1)环氧树脂样品中存在一定的宏观(0.1mm)不均匀,既存在无色透明的区域,也存在半透明乳白色区域.在乳白色区域中,还存在白色斑点.无色透明区域在约10μm尺度以上,空间均匀性较好;在约10μm尺度以下,出现空间不均匀性.半透明乳白色区域中斑点大小为1μm量级的近圆形区域.2)边缘处的环氧树脂胶厚度逐渐变薄,表明未固化的环氧树脂胶与不锈钢衬底之间即使达到μm级仍然是浸润接触.在样品中没有观察到裂纹,样品和衬底之间也未观察到缝隙.边缘与衬底接触部分形成较为均匀、平行于衬底表面、厚度约0.5μm的空间层状结构.Microstructures of curing epoxy adhesive on a stainless steel substrate were measured by scanning electron microscopy and optical microscopy in this paper. The results show that：1） the epoxy samples have macro （0.1mm） heterogeneity, i.e. there are both colorless and transparent and milky white translucent regions. In the white regions, there exist white spots. Spatial uniformity of the transparent regions is still good for the scale is larger than about 10 μm, but spatial inhomogeneity occurs when the scale is smaller than about 10 μm. The spots are near circular regions whose size is the order of about 1 μm;2） edges of the epoxy glues gradually becomes thin that indicates infiltration contact between uncured epoxy and stainless steel substrate even one μm scale, and there is no observed cracks in the samples and gaps between epoxy and substrates. Layered structures of uniform, parallel to the substrate surface, and thickness of approximately 0.5 μm form in the edge portion of cured epoxy in contact with the substrates.

关 键 词：环氧树脂胶 扫描电子显微镜 显微结构 

分 类 号：O469[理学—凝聚态物理]