环氧树脂具有优异的热性能及力学性能,但本身脆性较大.为制备低成本、高性能的环氧树脂体系,使用聚醚砜(PES)和多壁碳纳米管(MWCNT)对环氧树脂进行增韧,制备了不同PES含量的PES-环氧树脂共混物,讨论了PES含量对环氧树脂力学性能的影响;采用熔融法,并配合使用机械搅拌、高剪切分散和超声分散制备了MWCNT/PES-环氧树脂复合材料,测试了其拉伸性能及断裂韧性,用SEM观察了MWCNT在树脂中的分散状态以及拉伸试样的断口形貌.结果表明:MWCNT的加入能够提高PES-环氧树脂体系的综合力学性能,且当MWCNT含量为0.7wt％时,树脂体系的综合力学性能最好;低PES含量下,小于1.0wt％的MWCNT的加入使材料力学性能超过用20.0wt％PES改性的环氧树脂;PES与MWCNT对环氧树脂具有协同增韧作用.
参考文献
| [1] | Zhen-Kun Chen;Jiao-Ping Yang;Qing-QingNi;Shao-Yun Fu;Yong-Gang Huang.Reinforcement of epoxy resins with multi-walled carbon nanotubesfor enhancing cryogenic mechanical properties[J].Polymer: The International Journal for the Science and Technology of Polymers,200919(19):4753-4759. |
| [2] | Byung Chul Kim;Sang Wook Park;Dai Gil Lee.Fracture toughness of the nano-particle reinforced epoxy composite[J].Composite structures,20081/3(1/3):69-77. |
| [3] | 初增泽;黄鹏程.聚醚砜改性对环氧树脂室温和超低温韧性及力学性能的影响[J].高分子材料科学与工程,2005(4):228-231. |
| [4] | Andres MA.;Valea A.;Eceiza A.;Mondragon I.;Garmendia I..Fracture toughness of epoxy resins modified with polyethersulfone: Influence of stoichiometry on the morphology of the mixtures[J].Journal of Applied Polymer Science,19981(1):183-191. |
| [5] | 王惠民;梁伟荣.聚醚砜/环氧树脂复合体系的研究[J].高分子材料科学与工程,1999(6):155-157. |
| [6] | 于倩倩;陈刚;崇琳;王启芬;吴忠泉;王忠;王志远.PES增韧高性能环氧树脂力学性能研究[J].工程塑料应用,2012(9):22-24. |
| [7] | 华幼卿;王惠琼;张西萍.聚醚砜改性环氧树脂的研究(Ⅱ)力学性能和热性能[J].北京化工学院学报:自然科学版,199219(1):23-29. |
| [8] | Iijima S.Helical microtubules of graphite[J].NATURE,1991354(2):56-58. |
| [9] | 汪华锋;李振华;王新庆;王淼.纳米碳管/环氧树脂复合材料的制备及力学性能[J].复合材料学报,2004(5):48-51. |
| [10] | Florian H. Gojny;Malte H.G. Wichmann;Bodo Fiedler.Influence of different carbon nanotubes on the mechanical properties of epoxy matrix composites - A comparative study[J].Composites science and technology,200515/16(15/16):2300-2313. |
| [11] | Arash Montazeri.Mechanical properties of multi-walled carbon nanotube/epoxy composites[J].Materials & design,20109(9):P.4202. |
| [12] | 张博明;王洋;叶金蕊.纳米有机黏土/聚醚砜增韧环氧树脂复合材料研究[J].材料工程,2011(z1):59-64. |
| [13] | Wang, Yang;Zhang, Boming;Ye, Jinrui.Microstructures and toughening mechanisms of organoclay/polyethersulphone/epoxy hybrid nanocomposites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,201127(27):7999-8005. |
| [14] | 梅启林;王继辉;黄志雄.多壁碳纳米管-有机蒙脱土协同增韧环氧树脂[J].复合材料学报,2008(6):146-151. |
| [15] | Jiao-Ping Yang;Zhen-Kun Chen;Qing-Ping Feng;Yin-Hu Deng;Yu Liu;Qing-Qing Ni;Shao-YunFu.Cryogenic mechanical behaviors of carbon nanotube reinforced composites based on modified epoxy by poly(ethersulfone)[J].Composites, Part B. Engineering,20121(1):22-26. |
| [16] | Long-Cheng Tang;Yan-Jun Wan;Ke Peng.Fracture toughness and electrical conductivity of epoxy composites filled with carbon nanotubes and spherical particles[J].Composites, Part A. Applied science and manufacturing,20132(2):95-101. |
| [17] | 张晶;谢续明.多壁碳纳米管对环氧树脂/聚醚酰亚胺体系相分离的影响[J].高分子学报,2012(2):215-222. |
| [18] | ASTM D638-10 Standard test method for tensile properties of plastics[S].West Conshohocken,Pennsylvania,United States:ASTM International,2010. |
| [19] | ASTM D5045-99 Standard test methods for plane-strain fracture toughness and strain energy release rate of plastics materials[S].West Conshohocken,Pennsylvania,United States:ASTM International,2009. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%