| 高介电常数石墨烯/聚酰亚胺复合材料的制备与性能 |
| |
| 引用本文： | 刘会,赵剑英,姚海波,郭海泉,高连勋.高介电常数石墨烯/聚酰亚胺复合材料的制备与性能[J].高等学校化学学报,2017,38(7). |
| |
| 作者姓名： | 刘会 赵剑英 姚海波 郭海泉 高连勋 |
| |
| 作者单位： | 1. 山东理工大学化学工程学院,淄博,255049;2. 中国科学院长春应用化学研究所, 高分子物理与化学国家重点实验室, 长春 130022 |
| |
| 基金项目： | 国家自然科学基金(批准号:51373164)资助.Supported by the National Natural Science Foundation of China |
| |
| 摘 要： | 在原位聚合制备氧化石墨烯/聚酰亚胺复合材料的过程中,加入季铵盐表面活性剂,抑制氧化石墨烯在高温亚胺化时的聚集,同时将氧化石墨烯原位还原,获得高介电常数的石墨烯/聚酰亚胺复合材料.结果表明,采用四丁基溴化铵和四丁基碘化铵作为还原剂,利用原位化学还原方法所制备的石墨烯/聚酰亚胺复合材料的介电常数超过聚酰亚胺薄膜40倍以上,复合材料的热稳定性和机械性能也优于聚酰亚胺薄膜.热重分析结果表明,在复合材料高温亚胺化过程中,季铵盐发生热分解,未残留在复合材料中.
|
| 关 键 词： | 石墨烯 季铵盐 复合材料 介电常数 还原剂 聚酰亚胺 |
Preparation and Properties of Graphene/polyimide Composites with High Dielectric Constant |
| |
| LIU Hui,ZHAO Jianying,YAO Haibo,GUO Haiquan,GAO Lianxun.Preparation and Properties of Graphene/polyimide Composites with High Dielectric Constant[J].Chemical Research In Chinese Universities,2017,38(7). |
| |
| Authors: | LIU Hui ZHAO Jianying YAO Haibo GUO Haiquan GAO Lianxun |
| |
| Abstract: | Quaternary ammonium can be served as the reducing agent for the fabrication of graphene/polyimide(rGO/PI) composites via the in-situ chemical reduction of graphene oxide dispersed in polyimide matrix during the thermal imidization of polyimdes.The results showed that the dielectric constant of graphene/polyimide composites was 40 times as compared with that of graphene oxide/polyimide without the addition of tetrabutyl ammonium bromide.The thermostabilities and mechanical properties of graphene/polyimide composites were also improved simultaneously.Moreover,the quaternary ammonium surfactants would not remain in the composites,which can be decomposed after the rGO/PI composite materials was produced under high temperature. |
| |
| Keywords: | Graphene Quaternary ammonium Composite Dielectric constant Reducing agent Polyimide |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
