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嵌入式共固化阻尼复合材料的耐高温性能对其在极端环境下的应用至关重要。本文在正交实验的基础上提出一种具有优异耐高温性能的黏弹性材料组分,探索使用四氢呋喃溶剂将其溶解成胶浆,研究采用刷涂工艺在复合材料预浸料(T700/QY260)上制成阻尼薄膜,并与不带阻尼薄膜的复合材料预浸料一起根据设计要求铺设,利用预浸料的固化工艺曲线在热压罐中共固化成型,最终制成一种新型嵌入式共固化耐高温阻尼复合材料。通过测试其阻尼层与复合材料预浸料在老化前后的常温层间结合性能,验证这种复合材料的耐高温性能。结果表明,材料具有很好的耐高温性能,这就使嵌入式共固化大阻尼复合材料进入特种环境下的应用领域成为可能。
The high temperature resistance of embedded co-cured damping compounds is crucial for their use in extreme environments. Based on the orthogonal experiment, a kind of viscoelastic material with excellent high temperature resistance was proposed to explore the use of tetrahydrofuran solvent to dissolve it into cement. The effects of brush coating technology on the properties of composite material prepreg (T700 / QY260) Damping film and with the damping film composite prepreg with the laying of the design requirements, the use of prepreg curing process curve in the autoclave co-curing molding, and ultimately made a new type of embedded co-curing High temperature damping composite materials. The high-temperature performance of this composite was verified by testing the room-temperature bonding properties of the damping layer and the composite prepreg before and after aging. The results show that the material has a good high temperature performance, which makes the embedded co-cured large damping composite materials into the special environment applications possible.