中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 兰州化学物理研究所
  3. 中国科学院兰州化学物理研究所
  4. 先进润滑与防护材料研究发展中心
Preparation of high mechanical performance polyimides by micro-branched cross-linked structures

文献类型：期刊论文

作者He XS(何显盛)1,2,3; Xu MK(徐明坤)2; Dou Q(窦谦)1,2; Li YH(李彦辉)1,2; Wang QH(王齐华)1,2,3; Wang TM(王廷梅)1,2,3; Tao LM(陶立明)1,2,3
刊名Journal of Polymer Science
出版日期2024-12
期号无页码:无
关键词Polyimide film High temperature resistance High tensile strength Shape memory Micro-branched cross-linked structures
DOI10.1002/pol.20241041
英文摘要

To improve the modulus and tensile strength of polyimide films, this study utilized diamines with amide bonds as monomers, introducing hydrogen bonding into the material. Additionally, a micro-branched cross-linked structure was created by incorporating a triamino compound, and its effect on film properties was analyzed. The results showed that the microbranched cross-linked structure and amide bonding significantly improved the storage modulus, tensile strength, shape memory properties, and toughness of the polyimide films. Specifically, at 2% concentration of 1,3,5-tris(4-aminophenoxy)benzene, the storage modulus of the polyimide films reached 12.97GPa, the tensile strength was 243 MPa, the elongation at break was 5.58%, and the toughness was improved by 2.59 times.At this concentration, the shape fixation rate of normal polyimide was 96.7%, and the shape recovery rate was 92%. These findings suggest that the modified polyimide films exhibit high strength and are suitable for applications in high-temperature environments.

URL标识查看原文
语种英语
源URL[http://ir.licp.cn/handle/362003/31244]  
专题兰州化学物理研究所_先进润滑与防护材料研究发展中心
通讯作者Wang TM(王廷梅); Tao LM(陶立明)
作者单位1.Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
2.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
3.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
推荐引用方式
GB/T 7714		 He XS,Xu MK,Dou Q,et al. Preparation of high mechanical performance polyimides by micro-branched cross-linked structures[J]. Journal of Polymer Science,2024(无):无.
APA He XS.,Xu MK.,Dou Q.,Li YH.,Wang QH.,...&Tao LM.(2024).Preparation of high mechanical performance polyimides by micro-branched cross-linked structures.Journal of Polymer Science(无),无.
MLA He XS,et al."Preparation of high mechanical performance polyimides by micro-branched cross-linked structures".Journal of Polymer Science .无(2024):无.

入库方式： OAI收割

来源：兰州化学物理研究所

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。