A syntactic foam in the form of a thin uniform sheet that possesses enhanced moisture resistance, which comprises a composite filled with hollow microspheres such as glass in a polymer matrix resin such as an epoxy resin where the resin encapsulates the microspheres and the filled composite at weight equilibrium has less than 15% of the available internal volume of the microspheres occupied by liquid water as determined by the LMA test. The process of making the sheet and composites incorporating the sheet is described.
一种具有更强防潮性能的均匀薄片状合成泡沫塑料,它包括一种在环氧
树脂等聚合物基体
树脂中填充了
玻璃等中空微球的复合材料,其中
树脂包裹着微球,并且根据 LMA 试验的测定,在重量平衡状态下填充的复合材料的微球可用内部体积被液态
水占据的比例小于 15%。描述了片材和含有片材的复合材料的制作过程。