通过微波水解法制备了氧化锌(ZnO)柱撑皂石,并以其为助剂,利用溶液插层法制备了聚乳酸(PLA)/ZnO柱撑皂石纳米复合材料.通过X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)对ZnO柱撑皂石及PLA/ZnO柱撑皂石纳米复合材料的结构进行了表征,并对其力学性能和热稳定性能进行了测试.微观结构分析表明,ZnO柱撑皂石呈剥离状,并均匀分散在PLA基质中.力学性能研究表明,加入PLA基质质量0.3％的ZnO柱撑皂石有助于改善PLA复合材料的拉伸强度.DSC结果显示,加入ZnO柱撑皂石后,PLA的结晶度从21.2％增加到40.9％,说明纳米ZnO柱撑皂石可以消除PLA复合材料冷结晶,有助于提高PLA复合材料的结晶度,与XRD分析相吻合;热重分析显示,加入ZnO柱撑皂石后,PLA复合材料的热分解温度从353.3℃升高到360.35℃,表明ZnO柱撑皂石可以提高PLA复合材料的热稳定性.
参考文献
| [1] | S.Solarski;M.Ferreira;E.Devaux .Characterization of the thermal properties of PLA fibers by modulated differential scanning calorimetry[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(25):11187-11192. |
| [2] | Long Jiang;Jinwen Zhang;Michael P. Wolcott .Comparison of polylactide/nano-sized calcium carbonate and polylactide/montmorillonite composites: Reinforcing effects and toughening mechanisms[J].Polymer: The International Journal for the Science and Technology of Polymers,2007(26):7632-7644. |
| [3] | K. Fukushima;D. Tabuani;G. Camino .Nanocomposites of PLA and PCL based on montmorillonite and sepiolite[J].Materials science & engineering. C, Biomimetic materials, sensors and systems,2009(4):1433-1441. |
| [4] | 吴亮,吴德峰,吴兰峰,张明.聚乳酸/蒙脱土纳米复合材料的冷结晶及熔融行为[J].高分子材料科学与工程,2007(05):124-127. |
| [5] | Jeong WJ;Kim SK;Park GC .Preparation and characteristic of ZnO thin film with high and low resistivity for an application of solar cell[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2006(0):180-183. |
| [6] | 周凯,顾书英,邹存洋.碳酸钙填充聚乳酸复合材料的制备和性能研究[J].中国塑料,2009(06):27-30. |
| [7] | 李旭娟,李忠明.聚乳酸结晶的研究进展[J].中国塑料,2006(10):6-12. |
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%