利用溶液成型法制得3D功能化氧化石墨烯纳米带-碳纳米管(pGONRs CNTs)/热塑性聚氨酯(TPU)复合材料薄膜.采用FTIR,XRD,XPS和TEM对所得pGONRs-CNTs的结构及性能进行表征,并结合所得TPU复合材料薄膜的氧气透过率和拉伸性能测试以及表面形貌观察,研究GONRs与CNTs的协同作用以及不同含量pGONRs-CNTs对TPU复合材料薄膜阻隔和力学性能的影响.结果表明:pGONRs-CNTs复合体具有独特的3D交织状结构,其中GONRs间通过CNTs链接,二者间较强的π-π键使得这种结合形态牢固紧密,同时CNTs的存在也起到支撑骨架的作用,防止GONRs的滑移与团聚;通过异氰酸苯酯的改性处理,pGONRs-CNTs复合体的亲油性得到明显提高,同时较为庞大的异氰酸根的引入,使得GONR GONR间的层间距得到了进一步的提高,更有利于其在聚合物基体中实现均匀分散.当pGONRs CNTs质量分数为0.5％时,pGONRs-CNTs/TPU复合材料薄膜的氧气透过率和拉伸强度相比纯TPU薄膜分别降低了63.08％和提高了46.55％,阻隔性能和力学性能均得到显著改善.
参考文献
| [1] | Yamasaki S;Nishiguchi D;Kojio K;Furukawa M.Effects of polymerization method on structure and properties of thermoplastic polyurethanes[J].Journal of Polymer Science, Part B. Polymer Physics,20077(7):800-814. |
| [2] | Mishra, A.;Maiti, P..Morphology of polyurethanes at various length scale: The influence of chain structure[J].Journal of Applied Polymer Science,20116(6):3546-3555. |
| [3] | Mishra AK;Nando GB;Chattopadhyay S.Exploring Preferential Association of Laponite and Cloisite with Soft and Hard Segments in TPU-Clay Nanocomposite Prepared by Solution Mixing Technique[J].Journal of Polymer Science, Part B. Polymer Physics,200821(21):2341-2354. |
| [4] | Santerre JP;Woodhouse K;Laroche G;Labow RS.Understanding the biodegradation of polyurethanes: From classical implants to tissue engineering materials[J].Biomaterials,200535(35):7457-7470. |
| [5] | Grenier S;Sandig M;Mequanint K.Polyurethane biomaterials for fabricating 3D porous scaffolds and supporting vascular cells.[J].Journal of biomedical materials research, Part A,20074(4):802-809. |
| [6] | 王莉莉;董侠;刘祥贵;邢倩;黄淼铭;胡海青;王笃金.热塑性聚氨酯及其复合材料的界面形态与流变特性[J].高分子学报,2013(3):367-376. |
| [7] | Russo, P.;Acierno, D.;Marletta, G.;Destri, G.L..Tensile properties, thermal and morphological analysis of thermoplastic polyurethane films reinforced with multiwalled carbon nanotubes[J].European Polymer Journal,201310(10):3155-3164. |
| [8] | Wang, Y.;Gupta, M.;Schiraldi, D.A..Oxygen permeability in thermoplastic polyurethanes[J].Journal of Polymer Science, Part B. Polymer Physics,201210(10):681-693. |
| [9] | Hu YS.;Liu RYF.;Rogunova M.;Schiraldi DA.;Nazarenko S.;Hiltner A. Baer E..Oxygen-barrier properties of cold-crystallized and melt-crystallized poly(ethylene terephthalate-co-4,4 '-bibenzoate)[J].Journal of Polymer Science, Part B. Polymer Physics,200222(22):2489-2503. |
| [10] | Colin Hong An Wong;Martin Pumera.Highly conductive graphene nanoribbons from the reduction of graphene oxide nanoribbons with lithium aluminium hydride[J].Journal of Materials Chemistry, C. materials for optical and electronic devices,20145(5):856-863. |
| [11] | 郑玉婴.功能化氧化石墨烯纳米带/EVA复合材料薄膜的制备及表征[J].材料工程,2015(02):96-102. |
| [12] | Kosynkin, D.V.;Lu, W.;Sinitskii, A.;Pera, G.;Sun, Z.;Tour, J.M..Highly conductive graphene nanoribbons by longitudinal splitting of carbon nanotubes using potassium vapor[J].ACS nano,20112(2):968-974. |
| [13] | Xiang, C.;Cox, P.J.;Kukovecz, A.;Genorio, B.;Hashim, D.P.;Yan, Z.;Peng, Z.;Hwang, C.-C.;Ruan, G.;Samuel, E.L.G.;Sudeep, P.M.;Konya, Z.;Vajtai, R.;Ajayan, P.M.;Tour, J.M..Functionalized low defect graphene nanoribbons and polyurethane composite film for improved gas barrier and mechanical performances[J].ACS nano,201311(11):10380-10386. |
| [14] | Sasha Stankovich;Richard D. Finer;SonBinh T. Nguyen.Synthesis and exfoliation of isocyanate-treated graphene oxide nanoplatelets[J].Carbon: An International Journal Sponsored by the American Carbon Society,200615(15):3342-3347. |
| [15] | Dmitry V. Kosynkin;Amanda L. Higginbotham;Alexander Sinitskii;Jay R. Lomeda;Ayrat Dimiev;B. Katherine Price;James M. Tour.Longitudinal Unzipping Of Carbon Nanotubes To Form Graphene Nanoribbons[J].Nature,20097240(7240):872-876. |
| [16] | 曹宁宁;郑玉婴;樊志敏;王翔.氧化石墨烯纳米带-碳纳米管/TPU复合材料薄膜的制备及表征[J].高分子学报,2015(8):963-972. |
| [17] | Hyunwoo Kim;Yutaka Miura;Christopher W. Macosko.Graphene/Polyurethane Nanocomposites for Improved Gas Barrier and Electrical Conductivity[J].Chemistry of Materials: A Publication of the American Chemistry Society,201011(11):3441-3450. |
| [18] | Improved dispersion and mechanical properties of hybrid nanocomposites[J].Composites science and technology,20102(2):223. |
| [19] | Guijun Xian;Rolf Walter;Frank Haupert.Friction and wear of epoxy/TiO_2 nanocomposites: Influence of additional short carbon fibers, Aramid and PTFE particles[J].Composites science and technology,200616(16):3199-3209. |
| [20] | Zhibin Yang;Mingkai Liu;Chao Zhang.Carbon Nanotubes Bridged with Graphene Nanoribbons and Their Use in High-Efficiency Dye-Sensitized Solar Cells[J].Angewandte Chemie,201314(14):3996-3999. |
| [21] | Scognamillo, S.;Gioffredi, E.;Piccinini, M.;Lazzari, M.;Alzari, V.;Nuvoli, D.;Sanna, R.;Piga, D.;Malucelli, G.;Mariani, A..Synthesis and characterization of nanocomposites of thermoplastic polyurethane with both graphene and graphene nanoribbon fillers[J].Polymer,201219(19):4019-4024. |
| [22] | 代吉祥;沙建军;张兆甫;李建;韦志强.纤维热处理对C/C-SiC复合材料断裂韧度的影响[J].航空材料学报,2014(2):69-76. |
| [23] | Maria L Auad;Vasili S Contos;Steve Nutt.Characterization of nanocellulose-reinforced shape memory polyurethanes[J].Polymer international,20084(4):651-659. |
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