| X射线衍射法研究天然橡胶/黏土纳米复合材料的插层过程 |
| |
| 引用本文： | 戈明亮,贾德民.X射线衍射法研究天然橡胶/黏土纳米复合材料的插层过程[J].材料工程,2012(3):43-46,51. |
| |
| 作者姓名： | 戈明亮 贾德民 |
| |
| 作者单位： | 1. 华南理工大学机械与汽车工程学院,广州,510640
2. 华南理工大学材料科学与工程学院,广州,510640 |
| |
| 基金项目： | 中国博士后科学基金(20100470911) |
| |
| 摘 要： | 利用十六烷基季铵盐在固相条件下对黏土进行有机化插层改性,制备出有机黏土;采用机械混炼插层法制备了天然橡胶/有机蒙脱土纳米复合材料,用X射线衍射(XRD)和透射电镜(TEM)表征了纳米复合材料的结构和形态。利用XRD探讨了有机黏土在混炼和硫化过程中的插层行为,结果表明:天然橡胶的插层行为在机械混炼的过程中就已经发生,在硫化过程中,随着硫化时间的增加,黏土的层间距略微增加,黏土片层间的橡胶分子并不稳定。硫化过程结束后,黏土片层间的橡胶分子链随着交联固化而稳定地保持在黏土片层间。
|
| 关 键 词： | 天然橡胶 黏土 纳米复合材料 插层过程 XRD |
Study on Intercalating Stage of Natural Rubber/Clay Nanocomposites by X-ray Diffraction |
| |
| GE Ming-liang
,
JIA De-min.Study on Intercalating Stage of Natural Rubber/Clay Nanocomposites by X-ray Diffraction[J].Journal of Materials Engineering,2012(3):43-46,51. |
| |
| Authors: | GE Ming-liang JIA De-min |
| |
| Affiliation: | 1 College of Machine and Automobile Engineering,South China University of Technology,Guangzhou 510640,China;2 College of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,China) |
| |
| Abstract: | The organic clay(Org-clay) was prepared by alkyl ammonium ions treating of Na-montmorillonite,and then the natural rubber(NR)/Org-clay nanocomposites were prepared by intercalation method.The structure and morphology of the nanocomposites were characterized by X-ray diffraction(XRD) and transmission electron microscopy(TEM),the results show that Org-clay can disperse in the rubber matrix at nanometer size.The result of XRD indicated that natural rubber chains could be intercalated into the interlayer of the Org-clay during the mixing stage.During the vulcanizing stage,with increasing vulcanization time the basal space of Org-clay was slightly increased.At the end of rubber vulcanization process,the NR chains were fixed in the interlayer of the Org-clay because of cross-linked network structure of vulcanizate. |
| |
| Keywords: | natural rubber clay nanocomposites intercalation process X-ray diffraction |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
