通过调控DDS的添加量,制备不同胺/环氧当量比的TDE-85/DDS环氧树脂体系:环氧过量(r=0.8)、等当量比(r=1)和胺过量(r=1.2);将氨基化多壁碳纳米管(MWCNTs-NH2)加入这三种体系中,研究当量比对MWCNTs-NH2/环氧树脂复合材料的固化动力学和拉伸性能的影响.结果表明,MWCNTs-NH2对环氧-胺体系固化动力学和拉伸性能的影响与r密切相关.当r=0.8时,MWCNTs-NH2可以充分地与环氧基团发生开环反应,树脂体系的活化能显著降低,拉伸强度和模量分别提高了17％和20％;当r=1时,MWCNTs-NH2加入后,活化能降低的同时固化反应动力学由化学控制转变为扩散控制,拉伸强度和模量分别提高10％和14％;当r=1.2时,MWCNTs-NH2加入后,树脂体系在反应后期的活化能降低,造成局部的过度交联,拉伸强度降低了14％,模量仅提高了9％.
参考文献
| [1] | Yang, Q.;Li, X.;Shi, L.;Yang, X.;Sui, G..The thermal characteristics of epoxy resin: Design and predict by using molecular simulation method[J].Polymer: The International Journal for the Science and Technology of Polymers,201323(23):6447-6454. |
| [2] | Fu, Y.;Zhong, W.-H..Cure kinetics behavior of a functionalized graphitic nanofiber modified epoxy resin[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,20111/2(1/2):58-63. |
| [3] | 郑国栋;张清杰;邓火英;蒋文革;杨小平;隋刚.不同官能化碳纳米管对MWCNTs-碳纤维/环氧树脂复合材料力学性能的影响[J].复合材料学报,2015(3):640-648. |
| [4] | Ketan S. Khare;Fardin Khabaz;Rajesh Khare.Effect of Carbon Nanotube Functionalization on Mechanical and Thermal Properties of Cross-Linked Epoxy-Carbon Nanotube Nanocomposites: Role of Strengthening the Interfacial Interactions[J].ACS applied materials & interfaces,20149(9):6098-6110. |
| [5] | 田继斌;梁胜彪;隋刚;杨小平.羧基化多壁碳纳米管对T-1000碳纤维/环氧树脂复合材料性能的影响[J].玻璃钢/复合材料,2010(1):36-39,45. |
| [6] | Coleman, JN;Khan, U;Gun'ko, YK.Mechanical reinforcement of polymers using carbon nanotubes[J].Advanced Materials,20066(6):689-706. |
| [7] | 汪澎;隋刚;杨小平.环氧树脂与胺类固化剂当量比对固化物性能的影响[J].玻璃钢/复合材料,2013(2):22-27. |
| [8] | Li-Jun Cui;Yi-Bin Wang;Wen-Jun Xiu;Wen-Yi Wang;Li-Hao Xu;Xiao-Bing Xu;Yan Meng;Lu-Yan Li;Jing Gao;Li-Ting Chen;Hong-Zhang Geng.Effect of functionalization of multi-walled carbon nanotube on the curing behavior and mechanical property of multi-walled carbon nanotube/epoxy composites[J].Materials & design,2013Aug.(Aug.):279-284. |
| [9] | 吕健勇;孟焱;何立凡;邱藤;李效玉;王海侨.聚苯醚型超支化环氧/E-51的非模型固化动力学[J].北京化工大学学报（自然科学版）,2013(3):38-43. |
| [10] | Wang, H.;Zhu, L.;Du, Z.;Zhang, B.;Zhang, Y..Curing behaviors and kinetics of epoxy resins with a series of biphenyl curing agents having different methylene units[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,20111/2(1/2):18-25. |
| [11] | J. M. Gonzalez-Dominguez;M. Gonzalez;A Anson-Casaos.Effect of Various Aminated Single-Walled Carbon Nanotubes on the Epoxy Cross-Linking Reactions[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201115(15):7238-7248. |
| [12] | Erik T. Thostenson;Zhifeng Ren;Tsu-Wei Chou.Advances in the science and technology of carbon nanotubes and their composites: a review[J].Composites science and technology,200113(13):1899-1912. |
| [13] | 许丹;隋刚;杨青;张清杰;曾娟娟;杨小平.石墨烯微片表面接枝PMMA及其环氧树脂复合材料性能[J].复合材料学报,2014(2):368-374. |
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