CAJ | 학술논문

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.
채용소묘전자현미경화광학현미경등방법，대재불수강츤저상고화후배양수지효적현미결구진행료측량여분석.결과표명：1）배양수지양품중존재일정적굉관（0.1mm）불균균，기존재무색투명적구역，야존재반투명유백색구역.재유백색구역중，환존재백색반점.무색투명구역재약10μm척도이상，공간균균성교호；재약10μm척도이하，출현공간불균균성.반투명유백색구역중반점대소위1μm량급적근원형구역.2）변연처적배양수지효후도축점변박，표명미고화적배양수지효여불수강츤저지간즉사체도μm급잉연시침윤접촉.재양품중몰유관찰도렬문，양품화츤저지간야미관찰도봉극.변연여츤저접촉부분형성교위균균、평행우츤저표면、후도약0.5μm적공간층상결구.
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.