Abstract The conducting polymer composite material is desired to have a high dielectric constant and dissipation factor in low frequency ranges, so that it can be used charge storing devices, decoupling capacitors, electromagnetic interference (EMI) shielding applications. Currently, on‐going research trying enhance the of ceramic powder‐polymer, metal nanotube‐polymer composites region. In this article, we present properties polypropylene (PP)‐graphite (Gr) radio ranges. Furthermore, EMI...

Abstract Conducting polymer composites were prepared by hot compression molding of high‐density polyethylene (HDPE) prelocalized with graphite (Gr). The variation room temperature electrical conductivity, dielectric constant, and Shore‐D hardness as a function content studied below above percolation threshold. threshold at which insulator‐conductor transition takes place is estimated to be 0.029 volume fraction graphite. observed increase in constant addition also found percolative nature....

The main objective of this paper is to develop a conducting composite sheet for coating various electronic devices provide effective electromagnetic interference (EMI) shielding in medical and defence application near- far-field region. Here, we utilize the dielectric properties styrene acrylonitrile (SAN) copolymer graphite (Gr) composites radio frequency ranges (10 MHz-1 GHz) calculating EMI properties. SAN-Gr sheets were prepared by mechanical mixing hot compression mold technique....

Multilayer structures of graphene oxide‐zinc oxide nanorods (GO‐ZnONRs) hybrids are successfully grown for use as an active material in resistive switching random access memory (RRAM) devices. A considerable reduction the OFF current is achieved through a layer‐by‐layer growth GO‐ZnONR multilayers up to three repeating layers material. The scanning electron microscope images and X‐ray diffraction patterns hybrid multilayer reveal that vertically oriented ZnONRs sandwiched between GO sheets....

Flexible electronic devices with flexible sensors have drawn enormous attention due to their wide variety of applications, such as wearable health monitoring devices, bendable touch screens, storage artificial skins, etc. However, the mechanical and electrical performance should be enhanced by new materials design or an innovative device structure fulfill requirements for applications. Here, a poly(vinylidenefluoride) (PVDF) piezoelectric polymer-based hydrophilic nanocomposite (PHNC)...

Abstract Ionic polymer–metal composite (IPMC) actuators that display continuously large actuation displacements without back relaxation and with blocking force at low direct current (DC) voltages are used as biomimetic sensors, biomedical devices. This article reports the preparation performance of new IPMC based on polyvinylidene fluoride (PVDF)/polystyrene sulfonic acid (PSSA)/polyvinyl pyrrolidone (PVP) polymer blend membrane, which requires voltage DC. The results proposed compared...

Abstract In this article, we present and analyze the dielectric properties of high‐density polyethylene (HDPE)‐graphite(Gr) composites in low radio frequency ranges for capacitor electromagnetic interference (EMI) shielding application, respectively. The HDPE‐Gr were prepared by mixing hot compression mold technique. constant AC conductivity according to graphite volume fraction follow power law model percolation theory. threshold was estimated be 0.039 (∼ 7 wt % Gr). exhibited high...

Advancement of healthcare has been rapid due to phenomenal growth in engineering. The combination medicine and engineering a boom the mankind; this is called biomedical Engineering. Biomedical field that creates such medical instruments which help us measure, record transmit data or from human body [1]. In various suitable smart sensors used provides real time monitoring health parameters like temperature blood pressure [13]. This research paper describes modeling simulation using MEMS...

An actuator based on a miscible [P(VDF-TrFE)]/PVP/PSSA polymer blend membrane shows large actuation displacement and force at low voltage of 1 V compared to those commercial Nafion PVDF actuators.

Here, we show that biocompatible IPMNC sensors based on a carboxyl graphene–acidic ionic liquid–polyvinylpyrrolidone–polystyrene sulfonic acid blend membrane can generate high sensing current (6 mA cm⁻²) with bending strain of 0.009.

To meet the requirement of electromagnetic compatibility in various portable electronic devices, interference shielding effectiveness (EMISE) is one key parameters. Here, we demonstrate that a polymer composite film comprising two polymers poly(vinylidene fluoride-co-trifluoroethylene) [P(VDF-TrFE)] and poly(3,4-ethylene dioxythiophene) polystyrene sulfonate (PEDOT:PSS) with good mechanical flexibility provides an effective (EMI) shielding. Dielectric properties P(VDF-TrFE) PEDOT:PSS...