Morphology evolutions of organically modified montmorillonite/polyamide 12 nanocomposites
文献类型：期刊论文
| 作者 | Meng, Xiaoyu; Wang, Zhe; Zhao, Zhongfu; Du, Xiaohua; Bi, Wuguo; Tang, Tao |
| 刊名 | POLYMER
 |
| 出版日期 | 2007-04-24 |
| 卷号 | 48期号:9页码:2508-2519 |
| 关键词 | Exfoliation Montmorillonite Nanocomposites |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2007.03.009 |
| 英文摘要 | Organically modified montmorillonites (OMMTs) by octadecylammonium chloride with two adsorption levels were dispersed in polyamide 12 (PA12) matrices with two molecular weights for different melt mixing times in order to investigate morphology evolutions and factors influencing fabrication of PA12 nanocomposites. Different adsorption levels of the modifier in the OMMTs provide different environments for diffusion of polymer chains and different attractions between MMT layers. Wide-angle X-ray diffraction (WAXD), transmission electron microscope (TEM) and gas permeability were used to characterize morphologies of the nanocomposites. Both OMMTs can be exfoliated in the PA12 matrix with higher molecular weight, but only OMMT with lower adsorption level can be exfoliated in the PA12 matrix with lower molecular weight. It was attributed to the differences in the levels of shear stress and molecular diffusion in the nanocomposites. The exfoliation of OMMT platelets results from a combination of molecular diffusion and shear. After intercalation of PA12 into interlayer of OMMT in the initial period of mixing, further dispersion of OMMTs in PA12 matrices is controlled by a slippage process of MMT layers during fabricating PA12 nanocomposites with exfoliated structure. (c) 2007 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000246329300009 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/62545]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Tang, Tao |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Xiaoyu,Wang, Zhe,Zhao, Zhongfu,et al. Morphology evolutions of organically modified montmorillonite/polyamide 12 nanocomposites[J]. POLYMER,2007,48(9):2508-2519. |
| APA | Meng, Xiaoyu,Wang, Zhe,Zhao, Zhongfu,Du, Xiaohua,Bi, Wuguo,&Tang, Tao.(2007).Morphology evolutions of organically modified montmorillonite/polyamide 12 nanocomposites.POLYMER,48(9),2508-2519. |
| MLA | Meng, Xiaoyu,et al."Morphology evolutions of organically modified montmorillonite/polyamide 12 nanocomposites".POLYMER 48.9(2007):2508-2519. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。