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hydrothermal aging
    Study of Hydrothermal Aging Effect on Mechanical Properties of Carbon Fiber/Epoxy Resin Composites
    湿热老化对碳纤维/环氧树脂基复合材料力学性能影响研究
    Effects of hydrothermal aging on properties of high-performance composites
    湿热老化对高性能复合材料性能的影响
    EFFECT OF HYDROTHERMAL AGING ON INTERFACE OF PULTRUDED CF/VE COMPOSITES
    湿热老化对CF/VE拉挤复合材料界面的影响
    Mechanical properties of S 2/TDE 85(S 2 glassfiber/Epoxy) unidirectional laminate after natural storing and accelerated hydrothermal aging was studied.
    本文对高强 2号玻璃纤维 (S2 )增强环氧 (TDE85 -MCD体系 )基复合材料单向板经自然库存与加速湿热老化后力学性能的变化进行了研究。
    The change of mechanical properties,glass transition temperature and thermogravimetry(TG) of T700/epoxy and F-12/epoxy with aging time were investigated through the hydrothermal aging test(the aging temperature is 85 ℃,and the humidity is 95%).
    通过湿热老化试验(温度为85℃,湿度为95%),研究了T700纤维/环氧和F-12纤维/环氧两种复合材料力学性能、玻璃化转变温度、热失重随老化时间的变化。
    The results show that the tensile strength,tensile modulus and shear strength of the two kinds of composites present different change laws,and the glass transition temperature of composites decreases obviously after hydrothermal aging treatment.
    结果表明,经湿热老化后,两种复合材料的拉伸强度、拉伸模量和剪切强度具有不同的变化规律,复合材料的玻璃化转变温度有较明显地下降。
    The hydrothermal aging mechanisms of the two kinds of composites are quite different. The property stability of T700/epoxy composite is superior to that of F-12/epoxy composite.
    两种复合材料湿热老化机理有明显的区别,T700纤维/环氧复合材料老化后的性能稳定性优于F-12纤维/环氧复合材料。
    Hydrothermal aging and ultraviolet radiation aging caused descend of mechanical properties. Retention ratios of both impact strength and flexural strength of the modified system exceeded 95 % when epoxy resin concentration was less than 30 %.
    湿热老化和紫外光老化都使改性树脂体系的冲击强度和弯曲强度降低 ,而后者的影响较弱 ,当环氧树脂用量低于 3 0 %时冲击强度和弯曲强度的保持率均高于 95 %。
    The resin system possessed the best dielectric properties after post cure for 2h at 200℃. Addition of epoxy resin concentration,hydrothermal aging and ultraviolet radiation aging caused increase of the dielectric constant and dielectric loss. However, the modified system belongs to excellent dielectric material, with epoxy resin concentration below 30wt%.
    改性体系经200℃后处理2h的介电性能最佳,环氧树脂用量的增加、湿热老化和紫外光老化都使介电常数和介电损耗增加,但当环氧树脂用量低于30wt%时仍属于优异的介电材料。
 

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