利用插层法和溶胶-凝胶法制备了不同含量的蒙脱土/二氧化钛/聚酰亚胺(MMT/TiO2/PI)纳米杂化薄膜.采用傅立叶红外光谱、紫外可见光谱、扫描电镜和热重分析等对该体系的分子结构、断口形貌和热性能进行了表征,同时研究了聚酰亚胺杂化薄膜低温(77 K)力学性能.结果表明,纳米粒子与基体结合情况良好,热分解温度Td有所上升.TiO2/PI杂化薄膜低温拉伸强度随TiO2质量分数增加而有所下降;而MMT/TiO2/PI杂化薄膜拉伸强度随TiO2质量分数增加而增加并在TiO2质量分数为2%时达到最大值,说明TiO2与MMT超混杂产生了协同效应.另外,弹性模量随无机颗粒含量的增加而提高,但断裂伸长率则下降.
参考文献
| [1] | 李艳,付绍云,林大杰,等.二氧化硅/聚酰亚胺纳米杂化薄膜室温及低温力学性能[J].复合材料学报,2005,22(2):11-15.Li Y,Fu S Y,Lin D J,et al.Mechanical properties of polyimide composites filled with SiO2 nano-particles at room and cryogenic temperatures [J].Acta Materiae Compositae Sinica,2005,22(2):11-15. |
| [2] | 李元庆,张以河,李明,等.PI/T-SiO2杂化薄膜的制备及偶联剂的影响[J].合成树脂及塑料,2004,21(5):61-64.Li Y Q,Zhang Y H,Li M,etal.Influence of coupling agents on the properties of PI/T-SiO2 hybrid film [J].China Synthetic Resin and Plastics,2004,21(5):61-64. |
| [3] | 李元庆,张以河,李艳,等.聚酰亚胺纳米复合薄膜的低温电气强度研究[J].绝缘材料,2004,37(5):19-22.Li Y Q,Zhang Y H,Li Y,et al.A study on dielectric strength of polyimide nanocomposite films at 77 K [J].InsulatingMaterials,2004,37(5):19-22. |
| [4] | Qiu W L,Luo Y J,Chen F T,et al.Morphology and size control of inorganic particles in polyimide hybrids by using SiO2-TiO2 mixed oxide [J].Polymer,2003,44(19):5821-5826. |
| [5] | Tong Y J,Li Y S,Liu J P,et al.Preparation and properties of polyimide films codoped with barium and titanium oxides[J].JApp PolymSci,2002,83(8):1910-1816. |
| [6] | Kong Y,Du H W,Yang J R,et al.Study on polyimide/TiO2nanocomposite membranes for gas separation [J].Desalination,2002,146(1):49-55. |
| [7] | 刘丽,路庆华,印杰,等.溶胶-凝胶法制备聚酰亚胺/二氧化钛感光杂化材料[J].高等学校化学学报,2001,22(11):1943-1944.Liu L,Lu Q H,Yin J,et al.Preparation of photosensitive polyimide/titania hybrid by sol-gel method [J].Chem J Chinese Universities,2001,22(11):1943-1944. |
| [8] | 雷勇,刘宇锋,江璐霞,等.蒙脱土/聚酰亚胺纳米复合薄膜的制备[J].复合材料学报,2002,19(3):42-45.Lei Y,Liu Y F,Jiang L X,et al.Synthesis and properties of montmorillonite/polyimide nanocomposite film [J].Acta Materiae Compositae Sinica,2002,19(3):42-45. |
| [9] | 李桂英,张其震,杨文泓.聚酰亚胺/蒙脱土纳米复合材料的制备与表征[J].山东大学学报(理学版),2002,38(5):105-108.Li G Y,Zhang Q Z,Yang W H.Synthesis and characterization of polyimide/montmorillonite nanocomposites [J].J Shandong University (Natural Science),2002,38(5):105-108. |
| [10] | 王家俊,益小苏.导热型高性能树脂微电子封装材料之二:封装材料的导热和热膨胀性能[J].包装工程,2003,24(4):13-17.Wang J J,Yi X S.Thermal conductive high performance polymer microelectronic packaging material Ⅱ:Thermal conductivity and thermal expansion of the packaging material [J].Packaging Engineering,2003,24(4):13-17. |
| [11] | Zhang Y H,Wu J T,Fu S Y,et al.Studies on characterization and cryogenic mechanical properties of polyimide-layered silicate nanocomposite films [J].Polymer,2004,45 (22):7579-7587. |
| [12] | Zhang Y H,Fu S Y,Li R K,et al.Investigation of polyimide-mica hybrid films for cryogenic applications [J].Composites Sci and Technol,2005,65(10):1743-1748. |
| [13] | Liu L,Lu Q H,Yin J,et al.Preparation and properties of photosensitive polyimide/titania silica hybrid materials [J].Materials Science and Engineering C,2002,22(1):61-65. |
| [14] | Wang H T,Zhong W,Xu P,et al.Polyimide/silica/titania nanohybrids via a novel non-hydrolytic sol gel route [J].Composites Part A,2005,36(7):909-914. |
| [15] | Chiang P C,Whang W T.The synthesis and morphology characteristic study of BAO-ODPA polyimide/TiO2 nano hybrid films [J].Polymer,2003,44(8):2249-2254. |
| [16] | 高濂,郑珊,张青红.纳米氧化钛光催化材料及其应用[M].北京:化学工业出版社材料科学与工程出版中心,2002.5-6.Gao L,Zheng S,Zhang Q H.Titania oxide photocatalytic nanomaterials and their applications [M].Beijing:Publishing Center for Materials Science and Engineering,Chemical Industry Press,2002.5-6. |
| [17] | Chiang P C,Whang W T,Tsai M H,et al.Physical and mechanical properties of polyimide/titania hybrid films [J].Thin Solid Films,2004,447-448:359-364. |
| [18] | Liang Z M,Yin J,Xu H J.Polyimide/montmorillonite nanocomposites based on thermally stable,rigid-rod aromatic amine modifiers[J].Polymer,2003,44(5):1391 1399. |
| [19] | Kausch H H,B guelin P.Deformation and fracture mechanisms in filled polymers [J].Macromol Symp,2001,169 (1):79-87. |
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%