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本文着重研究了纤维含量和纤维排列方向对环氧/单向纤维复合层扳的介电性能的影响。结果表明:纤维与施加电场方向的改变,将导致复合层板电击穿强度发生变化,其角度越大,那么其电击穿强度越高。纤维含量增加,其单向纤维复合层板的介电性能下降。本文对单向纤维复合材料建立了亚微观介电模型,且在此基础上,对其电击穿强度、复合介电常数与纤维方向和纤维含量的关系进行了理论预测,其结果与实验值有较好的一致性。
This paper focuses on the influence of fiber content and fiber orientation on the dielectric properties of the epoxy / unidirectional fiber composite waffle. The results show that the change of the direction of the fibers and the applied electric field will lead to the change of electric breakdown strength of the composite laminates. The larger the angle is, the higher the electric breakdown strength will be. Fiber content increases, the one-way fiber composite laminate dielectric properties decline. In this paper, a submicroscopic dielectric model was established for unidirectional fiber composites, and on this basis, the relationship between electric breakdown strength, composite dielectric constant and fiber orientation and fiber content was theoretically predicted, and the results were in good agreement with the experimental values Better consistency.