A noble composite film of cellulose/polypyrrole/MXene for electromagnetic interference shielding and infrared thermal camouflage

IF 4.9 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD Cellulose Pub Date : 2024-06-03 DOI:10.1007/s10570-024-05976-9

Hongbin Chai, Jianfei Tie, Yi Zhong, Linping Zhang, Xueling Feng, Hong Xu, Zhiping Mao

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Abstract

CNF-PPy/MXene composite films with excellent electromagnetic interference (EMI) shielding and infrared thermal camouflage performance were fabricated by compounding cellulose nanofiber-polypyrrole (CNF-PPy) and MXene. CNF-PPy was prepared by the modified in-situ polymerization of pyrrole on the surfaces of CNFs and exhibited excellent dispersion stability and storage stability in aqueous phase. CNF-PPy films showed enhanced conductivity (~ 3.91 S/cm) and EMI shielding effectiveness (average ~ 28.1 dB in X-band). The composite films loaded with MXene exhibited even better EMI shielding performance (~ 45.8 dB on average in X-band) and good applicability in other bands (~ 44.7 dB in 26.5–40.0 GHz band). The sample CP3M3 presented excellent infrared thermal camouflage properties on the MXene side (45.0 °C at 100 °C) and exhibited different infrared thermal camouflage properties on the other side (84.4 °C at 100 °C on the CNF-PPy side). Given excellent electrical conductivity, dispersion and storage stability of CNF-PPy, enhanced electromagnetic shielding and adjustable infrared emissivity of CNF-PPy/MXene films, the resulting samples can be chosen according to the scenarios, providing a promising method to ensure the smooth operation of military equipment.

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用于电磁干扰屏蔽和红外热伪装的纤维素/聚吡咯/MXene 高贵复合膜

通过纤维素纳米纤维-聚吡咯（CNF-PPy）和 MXene 的复合，制备了具有优异电磁干扰（EMI）屏蔽和红外热伪装性能的 CNF-PPy/MXene 复合薄膜。CNF-PPy 由吡咯在 CNF 表面的改性原位聚合制备而成，在水相中具有优异的分散稳定性和储存稳定性。CNF-PPy 薄膜显示出更强的导电性（~ 3.91 S/cm）和电磁干扰屏蔽效果（X 波段平均~ 28.1 dB）。负载了 MXene 的复合薄膜显示出更好的 EMI 屏蔽性能（X 波段平均约 45.8 dB），并在其他波段具有良好的适用性（26.5-40.0 GHz 波段约 44.7 dB）。样品 CP3M3 的 MXene 侧具有出色的红外热伪装特性（100 °C 时为 45.0 °C），而另一侧则表现出不同的红外热伪装特性（CNF-PPy 侧 100 °C 时为 84.4 °C）。鉴于 CNF-PPy 具有优异的导电性、分散性和储存稳定性，CNF-PPy/MXene 薄膜具有增强的电磁屏蔽性和可调的红外发射率，所制备的样品可根据应用场景进行选择，为确保军事装备的顺利运行提供了一种可行的方法。

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来源期刊

Cellulose 工程技术-材料科学：纺织

CiteScore

10.10

自引率

10.50%

发文量

580

审稿时长

3-8 weeks

期刊介绍： Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.