T700和T300碳纤维增强环氧树脂基复合材料耐湿热老化性能的对比
Comparison of Wet and Hot Aging Resistance of T700 and T300 Carbon Fiber Strengthened Epoxy Resin Composites
摘 要
在温度为70 ℃、相对湿度为85%的湿热环境下,分别对T700碳纤维/环氧树脂基复合材料、T300碳纤维/环氧树脂基复合材料以及两种复合材料/金属胶接结构进行了70 d的加速老化试验,并对老化前后的试样进行了力学性能试验和无损检测.结果表明:湿热环境没有改变两种复合材料的破坏模式,但使复合材料的纵、横向压缩强度和剪切强度略有降低;对复合材料/金属胶接结构,湿热老化环境不会导致胶接界面产生损伤,但会使胶接强度下降;老化前两种复合材料的力学性能基本相当,老化70 d后T700碳纤维/环氧树脂基复合材料的性能保持率略优.
湿热老化
加速试验
性能保持率
composite
hydrothermal aging
accelerated experiment
property conservation percentage
Abstract
Accelerated aging experiments of T700 and T300 carbon fiber/epoxy resin composites,as well as two types of composite/metal adhesive joints were carried out respectively for 70 d in a hot-wet environment with temperature of 70 ℃ and relative humidity of 85%.Mechanical property tests and nondestructive test (NDT) of the samples before and after aging were also performed.The results show that the hygrothermal environment did not change the failure modes of the two types of composite samples,but decreased slightly the longitudinal/lateral compressive strength and shear strength.For composite/metal joints,the hydrothermal environment could not bring about damage at the bonding interface,but could bring down its shear strength.The mechanical properties of T700/epoxy resin composite were equivalent to those of T300/epoxy resin composite before aging,while the former was superior to the latter in respect to the property conservation percentage after aging for 70 d.
中图分类号 V258.3
所属栏目 新材料 新工艺
基金项目
收稿日期 2008/6/5
修改稿日期 2009/1/21
网络出版日期
作者单位点击查看
备注余治国(1977-),男,湖南临湘人,博士研究生.
引用该论文: YU Zhi-guo,YANG Sheng-chun,SONG Bi-feng. Comparison of Wet and Hot Aging Resistance of T700 and T300 Carbon Fiber Strengthened Epoxy Resin Composites[J]. Materials for mechancial engineering, 2009, 33(6): 48～51
余治国,杨胜春,宋笔锋. T700和T300碳纤维增强环氧树脂基复合材料耐湿热老化性能的对比[J]. 机械工程材料, 2009, 33(6): 48～51
被引情况:
【1】赵庆,秦旭达,张心沛,李永行,吉春辉, "基于响应曲面法的碳纤维增强复合材料螺旋铣孔轴向切削力预测",机械工程材料 39, 108-112(2015)
【2】回丽,张旭,许磊,王勇刚, "纤维/环氧树脂复合材料湿热老化后的力学性能",机械工程材料 40, 62-65(2016)
【3】王占彬,张天骄,范金娟,黄超, "T300/648复合材料的湿热老化行为",机械工程材料 39, 44-47(2015)
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参考文献
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【3】KUMAR B G,SINGH R P.Degradation of carbon fiber-reinforced epoxy composites by ultraviolet radiation and condensation[J].Journal of Composite Materials,2002,36(24):2713-2733.
【4】SELZER R,FRIEDRICH K.Influence of water up-take on inter-laminar fracture properties of carbon fibre-reinforced polymer composites[J].Journal of Materials Science,1995,30:334-338.
【5】SELZER R,FRIEDRICH K.Mechanical properties and fai-lure behavior of carbon fibre-reinforced polymer composites under the influence of moisture[J].Composites A,1997,28:595-604.
【6】李晓骏,陈新文.复合材料加速老化条件下的力学性能研究[J].航空材料学报,2003,23(增刊):286-290.
【7】王再玉,喻国生,严旭,等.T700碳纤维增强树脂复合材料力学性能试验研究[J].洪都科技,2007(2):42-46.
【8】WANG J Z,PARVATAREDDY T,CHANG T,et al.Physical aging behavior of high-performance cornposites[J].Composites Science and Technology,1995,54(4):405-415.
【9】王晓洁,梁国正,张炜,等.湿热老化对高性能复合材料性能的影响[J].固体火箭技术,2006,29(3):301-304.
【10】PASRICHA A,DILLARD D A,TUTTLE M E.Effect of physical aging and variable stress history on the strain response of polymeric composites[J].Composites Science and Technology,1997,57(9/10):1271-1279.
【11】叶宏军,詹美珍.T300/4211复合材料的使用寿命评估[J].材料工程,1995(10):3-5.
【12】中国航空研究院.复合材料结构设计手册[M].北京:航空工业出版社,2001.
【13】陈明安,谢玄,李慧中,等.湿热条件对于含硫SCA处理LY12与环氧树脂粘接强度的影响规律[J].航空材料学报,2007,27(2):46-51.
【14】陈纲,郦正能,寇长河.湿热环境对缝纫层合板及含孔板压缩性能的影响[J].强度与环境,2004,31(1):46-49.
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