吸湿行为对复合材料的实际应用有很大的影响.本文研究了温度与外加应力因素对碳纤维增强环氧树脂基复合材料在NaCl水溶液中吸湿行为的影响规律.结果表明,升高温度可以提高复合材料在初始阶段的吸湿速率,增大饱和吸湿率.在35~70℃试验温度范围内,复合材料的吸湿特性遵从Fick定律.在35℃温度下施加弯曲载荷增大了复合材料在初始阶段的吸湿速率和饱和吸湿率,并且施加的弯曲载荷越大,复合材料在初始阶段的吸湿速率和达到平衡时的饱和吸湿率越大.同时,吸湿对复合材料的承载能力有明显的影响作用.
参考文献
[1] | 陈祥宝.先进树脂基复合材料的发展[J].航空材料学报,2000(01):46-54. |
[2] | F. U. Buehler;J. C. Seferis .Effect of reinforcement and solvent content on moisture absorption in epoxy composite materials[J].Composites, Part A. Applied science and manufacturing,2000(7):741-748. |
[3] | Lele AK;Hirve MM;Badiger MV;Mashelkar RA .Predictions of bound water content in poly(N-isopropylacrylamide) gel[J].Macromolecules,1997,30:157. |
[4] | 冼杏娟;李端义.复合材料破坏分析及微观图谱[M].北京:科学出版社,1993 |
[5] | Wan YZ.;Wang YL.;Luo HL.;Dong XH.;Cheng GX. .Moisture absorption behavior Of C-3D/EP composite and effect of external stress[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(2):324-329. |
[6] | Li-Rong Bao .Effect of temperature on moisture absorption in a bismaleimide resin and its carbon fiber composites[J].Polymer: The International Journal for the Science and Technology of Polymers,2002(14):3987-3997. |
[7] | Weitsman Y.Comprehensive composite materials[M].Polymer matrix composites,2000 |
[8] | 王汝敏;郑水蓉;郑亚萍.聚合物基复合材料及工艺[M].北京:科学出版社,2004 |
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