Preparation and properties of polyimide/carbon nanotube composite films with electromagnetic wave absorption performance. Issue 10 (10th September 2021)

• Record Type: Journal Article
• Authors: Jiang, Ming; Lin, Daolei; Jia, Wei; Du, Jiang; Han, Enlin; Zhang, Mengying; Niu, Hongqing; Wu, Dezhen
• Is Part Of: Polymer engineering & science. Volume 61:Issue 10(2021)
• Page Start: 2691
• Page End: 2700
• Publication Date: 2021-09-10
• Subjects: carbon nanotubes -- electromagnetic wave‐absorbing materials -- polyimide film; Polymer engineering -- Periodicals; Polymers -- Periodicals; 668.9
• DOI: 10.1002/pen.25796
• Languages: English
• ISSNs: 0032-3888

Abstract

Abstract: The polyimide (PI)/carbon nanotube (CNT) films including 3, 3′, 4, 4′‐biphenyl tetracarboxylic dianhydride (BPDA), p ‐phenylenediamine ( p ‐PDA), and CNTs were prepared, which have prominent electromagnetic (EM) wave absorption performance. Experimental analyses of the mechanical properties, thermal stabilities, coefficient of thermal expansion (CTE), the glass transition temperature (T g ), and EM parameter revealed the beneficial effects of the CNTs on the resulting composite films. In particular, when the content of CNTs is 6 wt%, the film shows the highest EM wave absorption performance, which exhibits the effective absorption bandwidth of 2.72 GHz with the matching thickness of only 2.0 mm. These results indicate that PI‐based films have a certain potential application in the area of EM wave‐absorbing materials. Abstract : The polyimide (PI)/carbon nanotubes (CNTs) films including 3, 3′, 4, 4′‐biphenyl tetracarboxylic dianhydride (BPDA), p ‐phenylenediamine ( p ‐PDA) and CNTs were prepared which own prominent electromagnetic (EM) wave absorption performance. These results indicate that PI‐based films have a certain potential application in the area of EM wave absorbing materials.