Flexible electrospun carbon nanofibers/silicone composite films for electromagnetic interference shielding, electrothermal and photothermal applications

Vertically Aligned Carbon Nanotube@Graphene Paper/Polydimethylsilane Composites for Electromagnetic Interference Shielding and Flexible Joule Heating

“…The VACNT@GP/PDMS composites exhibit a comparable mechanical strength (13.3 MPa) along with higher EMI SE/ t (1900–5000 dB cm –1 ), which almost outperforms all of the currently available polymer-based EMI shielding materials by far (the details are provided in Table S2). ,,,− ,, …”

“…For example, EMI shielding materials with excellent Joule-heating performance can be potentially used to cover a device surface as an outer protective layer, providing the multifunctions of anti-icing, heat preservation, and EMI elimination. , Flexible EMI shields are highly desirable in wearable electronics for shielding EMI and protecting human health. , In this regard, the polymers are believed to be the most promising alternatives for applications in high-performance flexible electronic systems because of their highly flexibility, excellent design freedom, and low cost compared to the metal-, ceramic-, and carbon-based materials. , Unfortunately, most of the polymers are highly electrically insulating, leading to the absence of EMI shielding and Joule-heating capability. Conductive fillers such as carbonaceous materials ( e.g ., carbon nanotubes (CNTs), , graphene, − carbon filaments, carbon fibers, and biomass-derived carbon), transition metal carbides (MXenes), , and metal nanowires − have been used to enhance the electrical conductivity of polymers. However, the achievement of high EMI shielding effectiveness (SE) and Joule-heating performance is usually at the sacrifice of significant deterioration of flexibility and processibility of the polymer composites, since high electrical conductivity strongly relies on high loading of the conductive fillers that cause severe agglomeration and poor filler–matrix interfacial bonding. ,, …”

Vertical Graphene Nanosheet/Polyimide Composite Films for Electromagnetic Interference Shielding

“…The sizes of samples are 20 × 30 mm 2 . The scattering parameters ( S 11 and S 21 ) were utilized to calculate the reflection coefficient ( R ), absorption coefficient ( A ), transmission coefficient ( T ), the reflection efficiency (SE R ), the absorption efficiency (SE A ), and the total EMI SE (SE T ) based on the following equations: where SE M R is the multiple reflection efficiency and can be ignored if SE T > 15 dB.…”

Highly Flexible Fabrics/Epoxy Composites with Hybrid Carbon Nanofillers for Absorption-Dominated Electromagnetic Interference Shielding

“…For a high EM absorption effectiveness, the CPCs require abundant electric dipoles with a high electrical conductivity that interacts with the EM waves. Carbonaceous materials, such as graphene [12], carbon black [13], carbon nanofibers [14], and carbon nanotubes (CNTs) [15], are an ideal choice as conductive fillers owing to their high electrical conductivity, low density, and superior physicochemical stability for the EMI-shielding applications. Several studies have used carbonaceous materials with EM compatibility for improving the data quality during IoE communications by attenuating unintentional EM waves [16][17][18].…”