The objective of this work is to improve the structural characteristics of hollow glass microsphere (HGM) filled epoxy syntactic foam composites with little voids content and improved HGM dispersion in the composite. A modified degassing technique has been introduced during resin casting process of the HGM filled syntactic foam composites. The effect of HGM content volume fractions (5–25%) on the degassing techniques was examined. The syntactic foam composites were characterized by analysing structural morphology using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy(TEM), and density measurements (theoretical and experimental). Less than 5% void content has been achieved in this study. This resulted in improved tensile and dynamic mechanical properties (DMA).

中文翻译：

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具有改善的结构特性的空心玻璃微球（HGM）填充的环氧复合泡沫复合材料的加工

这项工作的目的是改善中空玻璃微球（HGM）填充的环氧树脂复合泡沫复合材料的结构特性，该复合材料的空隙含量很少，并改善了HGM在复合材料中的分散性。在HGM填充的复合泡沫复合材料的树脂浇铸过程中，引入了一种改进的脱气技术。研究了HGM含量体积分数（5–25％）对脱气技术的影响。通过使用扫描电子显微镜（SEM），透射电子显微镜（TEM）和密度测量（理论和实验）分析结构形态来表征复合泡沫复合材料。在这项研究中已达到少于5％的空隙率。这导致改善的拉伸和动态机械性能（DMA）。