针对碳纳米管(CNT)-玻璃纤维/环氧树脂体系,采用传统的真空灌注工艺(VARIM)和双真空灌注工艺(DVARIM)制备复合材料层板,分析了不同工艺方法下层板缺陷状况,测试了层板的弯曲性能和层间剪切性能,并结合树脂性能和纤维/树脂界面粘结状况观察,探讨了DVARIM对CNT分布的影响及碳管的增强机制.结果表明:与传统的VARIM相比,DVARIM能增加纤维的间距,提高树脂对纤维的浸润能力,减小纤维束内的孔隙缺陷;添加质量分数为0.05%的酸化CNT后层板性能提高,而且采用DVARIM性能提高更明显;不同灌注工艺对CNT的分布产生影响,从而改变了CNT对纤维/树脂界面粘接的影响,同时这种影响与织物结构的紧密程度有关.
参考文献
| [1] | Coleman J N,Khan U,Gun' ko Y K.Mechanical reinforcement of polymers using carbon nanotubes[J].Advanced Materials,2006,18(6):689-706. |
| [2] | Fan Z H,Hsiao K T,Advani S G.Experimental investigation of dispersion during flow of multi-walled carbon nanotube/polymer suspension in fibrous porous media[J].Carbon,2004,42(4):871-876. |
| [3] | Sadeghian R,Gangireddy S,Minaie B,et al.Manufacturing carbon nanofibers toughened polyester/glass fiber composites using vacuum assisted resin transfer molding for enhancing the mode-Idelamination resistance[J].Composites Part A:Applied Science and Manufacturing,2006,37(10):1787-1795. |
| [4] | 刘相,谢凯,洪晓斌.利用时温等效原理修正的VARTM用双酚F型环氧树脂体系化学流变模型[J].复合材料学报,2010,27(1):l-6.Liu Xiang,Xie Kai,Hong Xiaobin.Chemorheological model of a bisphenol-F epoxy resin system for VARTM processes with amendment of time-temperature equivalence[J].Acta Materiae Compositae Sinica,2010,27(1):1-6. |
| [5] | Vaidya U K,Abraham A,Bhide S.Affordable processing of thick section and integral multi-functional composites[J].Composites Part A:Applied Science and Manufacturing,2001,32(8):1133-1142. |
| [6] | Alms J,Advani S G.Simulation and experimental validation of flow flooding chamber method of resin delivery in liquid composite molding[J].Composites Part A:Applied Science and Manufacturing,2007,38(10):2121-2141. |
| [7] | Fan Z H,Santarea M H,Advani S G.Interlaminar shear strength of glass fiber reinforced epoxy composites enhanced with multi-walled carbon nanotubes[J].Composites Part A:Applied Science and Manufacturing,2008,39(3):540-554. |
| [8] | Chandrasekaran V C S,Advani S G,Santare M H.Role of processing on interlaminar shear strength enhancement of epoxy/glass fiber/multi-walled carbon nanotube hybrid composites[J].Carbon,2010,48(13):3692-3699. |
| [9] | Li M,Wang S K,Gu Y Z,et al.Dynamic capillary impact on longitudinal micro-flow in vacuum assisted impregnation and the unsaturated permeability of inner fiber tows[J].Composites Science and Technology,2010,70(11):1628-1636. |
| [10] | Jen Y M,Yang Y H.A study of two-stage cumulative fatigue behavior for CNT/epoxy composites[J].Procedia Engineering,2010,2(1):2111-2120. |
| [11] | Siddiqui N A,Sham M L,Tang B Z.Tensile strength of glass fibres with carbon nanotube-epoxy nanocomposite coating[J].Composites Part A:Applied Science and Manufacturing,2009,40(10):1606-1614. |
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