利用表面引发原子转移自由基聚合(SI-ATRP)的方法在多壁碳纳米管(MWNT)表面接枝聚甲基丙烯酸甲酯(PMMA),接枝改性后的多壁碳纳米管通过原位聚合法与形状记忆聚氨酯(SMPU)合成SMPU/MWNT-PMMA复合材料.采用FTIR、SEM、TGA、DMA等方法表征材料的结构与性能,并测试其形状记忆性能.结果表明,随着MWNT-PMMA含量的增大,复合材料的力学性能显著改善,最大拉伸强度达到81.30MPa,玻璃化转变温度(Tg)增大,热稳定性增强,且复合材料具有电热双敏性,循环四次后形状固定率和形状恢复率均在95％以上,具有较好的形状记忆性能.
参考文献
| [1] | Ya-Ping Sun;Kefu Fu;Yi Lin;Weijie Huang.Functionalized carbon nanotubes:properties and applications[J].Accounts of Chemical Research,200212(12):1096-1104. |
| [2] | Chen CS;Chen XH;Xu LS;Yang Z;Li WH.Modification of multi-walled carbon nanotubes with fatty acid and their tribological properties as lubricant additive[J].Carbon: An International Journal Sponsored by the American Carbon Society,20058(8):1660-1666. |
| [3] | 黄从树;李彦锋.碳纳米管增强高聚物功能复合材料研究进展[J].材料科学与工程学报,2008(1):152-155. |
| [4] | 鲍艳;姚小钊;马建中.原子转移自由基聚合及其催化引发体系研究进展[J].高分子通报,2012(8):64-73. |
| [5] | 刘演新;杜中杰;励杭泉.多壁碳纳米管的表面乙烯基功能化[J].材料科学与工程学报,2005(4):495-498. |
| [6] | Matrab T;Chancolon J;L'hermite MM;Rouzaud JN;Deniau G;Boudou JP;Chehimi MM;Delamar M.Atom transfer radical polymerization (ATRP) initiated by aryl diazonium salts: a new route for surface modification of multiwalled carbon nanotubes by tethered polymer chains[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,20061/3(1/3):217-221. |
| [7] | Dhruba J. Haloi;NSouvik Ata;Nikhil K. Singha.Synthesis and Characterization of All Acrylic Block Copolymer/Clay Nanocomposites Prepared via Surface Initiated Atom Transfer Radical Polymerization (SI-ATRP)[J].Industrial & Engineering Chemistry Research,201229(29):9760-9768. |
| [8] | 陈小金;陈宪宏.聚氨酯/纳米复合材料的研究进展[J].材料科学与工程学报,2005(6):929-932. |
| [9] | 朱钟鸣;孙丽娜;郭唐华;彭懋.聚合物/碳纳米管纳米复合材料研究进展[J].材料科学与工程学报,2013(2):309-316,309. |
| [10] | W. M. Huang;B. Yang;Y. Zhao.Thermo-moisture responsive polyurethane shape-memory polymer and composites: a review[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,201017(17):3367-3381. |
| [11] | 马晓燕;鹿海军;梁国正;颜红侠.粘土/热塑性聚氨酯弹性体插层复合材料制备与性能[J].材料科学与工程学报,2003(2):191-195. |
| [12] | 林金娜;曾幸荣;侯有军;石红菊.可UV固化的超支化聚氨酯丙烯酸酯的合成与表征[J].材料科学与工程学报,2008(1):27-31,34. |
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%