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本文研究了在酚醛环氧树脂基体中加入的不同双马来酰亚胺树脂及其添加量和固化工艺条件对Ｔ－５０／酚醛环氧复合材料层间剪切强度（ＩＬＳＳ）的影响。采用ＳＥＭ分析了复合材料剪切断口形貌。结果表明，改性双马来酰亚胺树脂的加入可以使复合材料的ＩＬＳＳ值提高１０％以上。
In this paper, the effects of different bismaleimide resins added into the phenolic epoxy resin matrix and their additions and curing conditions on the interlaminar shear strength (ILSS) of T-50 / phenolic epoxy composites were investigated. SEM was used to analyze the shear fracture morphology of the composites. The results show that the addition of modified bismaleimide resin can increase the ILSS of the composites by more than 10%.