在拉应力条件下，测试了聚合物基体和单向玻璃纤维增强聚合物基复合材料的介电强度，探索了聚合物基体和玻璃纤维／聚合物复合材料的介电强度与拉应力的关系，提出并证明了聚合物基体的介电强度与拉应力呈负指数关系，复合材料中纤维与基体的界面是影响材料介电强度的主要因素。
Under the condition of tensile stress, dielectric strengths of resin and unique directional glass fiber reinforced resin composites were tested, and a relationship between dielectric strength and tensile stress of the resin and glass fiber/resin composites was studied. A negative exponential equation for expressing the relationship between dielectric strength and tensile stress for the resin was proposed and then was experimental proved. It has been found that the interface of the fiber and the resin plays a dominant role on the dielectric strength of composites.
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