Highly Efficient MXene-Coated Flame Retardant Cotton Fabric for Electromagnetic Interference Shielding

Abstract

In this work, a highly efficient flame retardant and electromagnetic interference (EMI) shielding coating on cotton fabric was fabricated by a simple solution impregnation and dipcoating method, which involved three layers of polyacetimidate (PEI), ammonium polyphosphate (APP), and Ti 3 C 2 T x . When exposed directly to flame, the PEI/APP coating lead to a char layer resulting in self-extinguishing performance. Particularly, the cotton fabric coated by increasing amounts of Ti 3 C 2 T x gradually achieved EMI shielding performance. When the Ti 3 C 2 T x sheets content was 5.2 mg/cm 2 , a high electrical conductivity of 670.3 S•m −1 and a EMI shielding effectiveness of 31.04 dB were achieved in the X-band with an absorption-dominated mechanism. Besides, such modified cotton fabric also has the potential to be used as an electrical heating material. The temperature could even reach up to about 64.3 °C under an applied voltage of just 4 V. Therefore, this work provided a feasible idea for preparing multifunctional fabrics.

Developing MXenes from Wireless Communication to Electromagnetic Attenuation

“…Zhang et al reported that the Ti 3 C 2 T x modified fabric with a low Ti 3 C 2 T x loading 6 wt% exhibited excellent electrical conductivity of 5 Ω sq −1 and outstanding EMI shielding performance (up to 36 dB) [ 111 ]. Cheng et al fabricated a Ti 3 C 2 T x MXene-coated cotton fabric by a simple solution impregnation and dip-coating method [ 112 ]. The cotton fabric coated by rising amount of Ti 3 C 2 T x could improve the EMI shielding performance.…”

Recent advancements in flame retardancy of MXene polymer nanoarchitectures

“…Polyimide (PI) aerogels (PIA) have garnered exceeding interest due to their low density and exceptional thermal stability. Hence, 2-D M-X/PIA nanoarchitecture has been fabricated and demonstrated interesting F-R behavior (Cheng et al 2020).…”

“…M-X, similar to graphene has displayed prospects of being utilized in F-R polymeric matrice (Cheng et al 2020). Nevertheless, the fabrication of F-R M-X polymeric nanoarchitecture has been obstructed as a result of M-X inferior interfacial compliance with the polymeric matrix.…”

Hot–Dog Structured Protective Nanocoating for Multifunctional Cotton Fabric Through Spray Assisted Layer–by–Layer Assembly

“…To meet safety regulations and expand the use of cotton in textile applications, a signi cant number of surface treatment approaches have been developed for improving the protection performance by enhancing the ame retardant and antimicrobial properties of the CFs (Li et al 2019a(Li et al , 2020Liu et al 2020; Pan et al 2015;Xue et al 2020). Along with a remarkable improvement in quality of life and evergrowing consumer demands, there have been dramatic increases in the developing of functional fabrics, especially as protective functional textiles (e.g., electromagnetic interference shielding (Cheng et al 2020; Wang et al 2019;Zhang et al 2019), antistatic (An et al 2020), and UV-protection (Hu et al 2015) and healthcare textiles (e.g., antimicrobial activity (Fang et al 2015;Sa et al 2020) and far-infrared emission (Hu et al 2015). Many complex applications require multifunctional fabrics, generally by integrating the ame retardant, antistatic and antibacterial properties (An et Although the eld of surface treatment of the CFs has made great progress, to date, it is still a technical challenge to fabricate durable multifunction and maintain simultaneously their pristine performances.…”