本文采用四针状氧化锌晶须对RTM(树脂传递模塑)成型的玻璃纤维复合材料进行层间改性,从"离位"改性思想出发,将晶须直接引入到复合材料相对薄弱的层间部分,氧化锌晶须特殊的几何形状在层间部位形成刚性的机械"锚接"结构,这种物理而非化学的方式,能有效抑制复合材料的层间开裂及层间微裂纹的扩展,提高复合材料的层间剪切性能.研究结果表明,针对所选用的典型的航空用环氧树脂体系,氧化锌晶须的引入使复合材料的层间性能明显改善.
In this study, tetraneedlelike ZnO whiskers were used to modify the interlaminar performance of glass fiber/epoxy composites fabricated by RTM process. Being different with the widely used "In-Situ" process, "Ex-Si-tu" process was applied. ZnO whiskers were introduced directly to the interlayer of composites. ZnO whiskers suc-cessfully created "mechanical anchorage" in the interlayer due to its special geometry shape and structure. Such "mechanical anchorage" effcienfly blocked the growth of crack and finally enhanced the interlaminar shear strength. The results showed that ZnO whiskers in the interlayer significantly improved interlaminar performance of the adopted epoxy system.
参考文献
| [1] | Chikhi N.;Fellahi S.;Bakar M. .Modification of epoxy resin using reactive liquid (ATBN) rubber[J].European Polymer Journal,2002(2):251-264. |
| [2] | Hsu YG;Liang CW .Properties and behavior of CTBN-modified epoxy with IPN structure[J].Journal of Applied Polymer Science,2007(3):1576-1584. |
| [3] | Mimura K. .Improvement of thermal and mechanical properties by control of morphologies in PES-modified epoxy resins[J].Polymer: The International Journal for the Science and Technology of Polymers,2000(12):4451-4459. |
| [4] | Bejoy Francis;Sabu Thomas;Jesmy Jose;R.Ramaswamy;V.Lakshmana Rao .Hydroxyl terminated poly(ether ether ketone)with pendent methyl group toughened epoxy resin:miscibility,morphology and mechanical properties[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(26):12372-12385. |
| [5] | 王琦洁,黄英,熊佳,李鹏.环氧树脂增韧研究新进展[J].玻璃钢/复合材料,2004(03):50-54. |
| [6] | 杨立平,李鹏,薛忠民,李刚,杨小平.聚砜纳米纤维增韧环氧树脂体系的固化动力学研究[J].玻璃钢-复合材料,2007(05):7-10,19. |
| [7] | Yi Xiaosu;An Xuefeng.Effect of interleaf sequence on impact damage and residual strength in a graphite/epoxy laminate[J].Journal of Materials Science,2004(39):3253-3255. |
| [8] | Yi Xiaosu;An Xuofeng;Tang Bangming et al.Ex-situ Formation Periodic Interlayer Structure to Improve Significantly the Impact Damage Resistance of Carbon Laminates[J].Advances in Engineering Materials,2003,5(10):729-732. |
| [9] | Wei Long;Xu Yahong;Yi Xiaosu.Preliminary study on resin transfer molding of highly-toughened graphite laminates by ex-situ method[J].Journal of Materials Science,2004(39):2263-2266. |
| [10] | 益小苏;刘刚;马宏毅 等.一种刚性3维晶须层间改性连续纤维复合材料的制备技术[P].国家发明专利,200810183554.4 |
| [11] | Zhou Zuowan;Liu Shikai;Gu Lixia.Studies on the Strength and Wear Resistance of Tctrapod-Shaped ZnO Whisker-Reinforced Rubber Composites[J].Journal of Applied Polymer Science,2001(80):1520-1525. |
| [12] | 周祚万,楚珑晟,唐明文,顾利霞.ZnO晶须增强树脂基复合材料研究[J].高分子材料科学与工程,2004(03):202-205. |
| [13] | 陈尔凡,田雅娟,周本廉.T-ZnO晶须增强环氧树脂复合材料的力学行为[J].高分子材料科学与工程,2003(02):111-114. |
| [14] | 任鹏刚,梁国正,卢婷利,房红强,杨洁颖,周文胜.ZnO晶须改性石墨纤维/双酚A二氰酸酯复合材料[J].复合材料学报,2005(02):46-51. |
| [15] | M. S. Cao;W. Zhou;X. L. Shi;Y. J. Chen .Dynamic response and reinforcement mechanism of composites embedded with tetraneedlelike ZnO nanowhiskers[J].Applied physics letters,2007(2):021912-1-021912-3-0. |
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