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Functional Polyimides

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Smart and Functional Polymers".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 4032

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Guest Editor
School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
Interests: polyimide; membrane; polyamide; epoxy resin; low Earth orbit; gas separation
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Special Issue Information

Dear Colleagues,

Thanks to their high heat resistance, polyimides enjoy diverse applications in roles demanding rugged organic materials (e.g., high-temperature fuel cells, displays, and various military applications). Polyimide materials are lightweight, flexible, and resistant to heat and chemicals. Therefore, the electronics industry makes extensive use of polyimide films in semiconductor applications, as an example. Polyimides are also the leading polymer matrices for high-temperature advanced composites. High-temperature adhesive systems for the bonding of metals or composites are often based on polyimides. In addition, polyimides are now finding use as fibers, foams, sealants and even membranes for the low-energy separation of industrial gases.

This Special Issue aims to cover the most recent and engaging topics on polyimide materials, with a focus on their preparation, characterization, properties and applications. Submissions in the form of full-length articles, communications, and reviews are invited.

Dr. Xingfeng Lei
Guest Editor

Manuscript Submission Information

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Keywords

  • advanced polyimides
  • preparation
  • properties
  • applications

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Published Papers (1 paper)

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Research

9 pages, 3177 KiB  
Communication
Evaluation of (CNT@CIP)-Embedded Magneto-Resistive Sensor Based on Carbon Nanotube and Carbonyl Iron Powder Polymer Composites
by Daeik Jang, Jae-Eun Park and Young-Keun Kim
Polymers 2022, 14(3), 542; https://doi.org/10.3390/polym14030542 - 28 Jan 2022
Cited by 20 | Viewed by 3753
Abstract
The conductive polymeric composites incorporating carbon nanotube (CNT) and carbonyl iron powder (CIP) have attracted much attention for various sensor applications. In this paper, a comprehensive study of the magneto-sensing property of a CNT-CIP embedded polymer composite is conducted to implement the composite [...] Read more.
The conductive polymeric composites incorporating carbon nanotube (CNT) and carbonyl iron powder (CIP) have attracted much attention for various sensor applications. In this paper, a comprehensive study of the magneto-sensing property of a CNT-CIP embedded polymer composite is conducted to implement the composite as magneto-sensors. Thus, this study experimentally investigated the magneto-sensing performances of CNT-doped polymeric composites with the addition of CIP in terms of electrical conductivity, sensitivity, repeatability, and response time. First, the CNT-CIP clusters were manufactured and their interactions were analyzed with the zeta potential measurement and SEM observation. Then, the CNT-CIP clusters were embedded into the polymeric composites for the magneto-sensing evaluations. Experiments showed that the CNT contents in the range of percolation threshold (i.e., 0.5% and 0.75%) are optimal values for sensor applications. The addition of CNT 0.5% and 0.75% resulted in a high sensitivity of 7% and a faster response time within 400 ms. Experiment evaluation confirmed a high potential of implementing CNT-CIP composite as magneto-sensors. Full article
(This article belongs to the Special Issue Functional Polyimides)
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