Construction, mechanism and prospective of conductive polymer composites with multiple interfaces for electromagnetic interference shielding: A review

Stretchable piezoelectric energy harvesters and self-powered sensors for wearable and implantable devices

Flexible polystyrene/graphene composites with epsilon-near-zero properties

Skin electronics require stretchable conductors that satisfy metallike conductivity, high stretchability, ultrathin thickness, and facile patternability, but achieving these characteristics simultaneously is challenging. We present a float assembly method to fabricate a nanomembrane that meets all these requirements. The method enables a compact assembly of nanomaterials at the water-oil interface and their partial embedment in an ultrathin elastomer membrane, which can distribute the applied strain in the elastomer membrane and thus lead to a high elasticity even with the high loading of the nanomaterials. Furthermore, the structure allows cold welding and bilayer stacking, resulting in high conductivity. These properties are preserved even after high-resolution patterning by using photolithography. A multifunctional epidermal sensor array can be fabricated with the patterned nanomembranes.

Highly conductive and elastic nanomembrane for skin electronics

Electromagnetic interference has become a serious pollution concern in modern society, which has significantly driven the development of lightweight electromagnetic interference shielding materials based on porous carbon/polymer nanocomposites. This work discusses the state-of-the-art methods for fabricating polymer foams and carbon foams, aerogels, and sponges for electromagnetic interference shielding. In order to obtain an ideal electromagnetic interference shielding effectiveness, it is crucial to create carbon/polymer nanocomposites with effective conductive networks at low filler loadings. To this end, there have been three design strategies, including the use of carbon foams with polymer backfilling, the use of carbon-based hybrid fillers, and the formation of segregated structures in conductive polymer composite. This review also discusses electrical conductivity and electromagnetic interference shielding performances as well as associated mechanisms behind of lightweight carbon-polymer nanocomposites, and their potential applications are summarized. Some key challenges on lightweight polymer-carbon nanocomposites as electromagnetic interference shielding materials are presented followed by some future perspectives.

Lightweight high-performance carbon-polymer nanocomposites for electromagnetic interference shielding

Flexible thermoplastic polyurethane-carbon nanotube composites for electromagnetic interference shielding and thermal management

Conductive hybrid nanofillers have become front facet of the recent research interest because of the scientific and techno-commercial significance of these materials. Herein, we report the fabrication of chlorinated polyethylene (CPE) nanocomposites filled with hybrid nanofiller of functionalized carbon nanofiber (FCNF) and nano-structured ketjen carbon black (K-CB) by using solution blending approach. Incorporation of hybrid nanofiller in CPE matrix led to a drastic enhancement in thermal, mechanical, and electrical properties. Proper distribution of hybrid nanofiller leads excellent electrical conductivity of 2.2 × 10−2 S/cm and superior electromagnetic interference (EMI) shielding performance (33 dB) at 15 wt% hybrid nanofiller content in X-band frequency. Further, we addressed the serviceable performance in electrical conductivities and shileding performances after exposed to thermal-air ageing treatment. The novelty of this present work lies in the unique synergism arising from the combination of two nanofillers, which serves as outstanding EMI shield material as a capable candidate against EM pollutions.

Combination effect of carbon nanofiber and ketjen carbon black hybrid nanofillers on mechanical, electrical, and electromagnetic interference shielding properties of chlorinated polyethylene nanocomposites

Electrical conductivity and electromagnetic interference shielding effectiveness of nano‐structured carbon assisted poly(methyl methacrylate) nanocomposites

Highly stretchable wrinkled electrode based on silver ink‐elastomer nanocomposite with excellent fatigue resistance

Amphiphilic block co-polymer and silica reinforced epoxy composite with excellent toughness and delamination resistance for durable electronic packaging application

Beomsu Shin

Papers

Flexible thermoplastic polyurethane-carbon nanotube composites for electromagnetic interference shielding and thermal management

Combination effect of carbon nanofiber and ketjen carbon black hybrid nanofillers on mechanical, electrical, and electromagnetic interference shielding properties of chlorinated polyethylene nanocomposites

Electrical conductivity and electromagnetic interference shielding effectiveness of nano‐structured carbon assisted poly(methyl methacrylate) nanocomposites

Highly stretchable wrinkled electrode based on silver ink‐elastomer nanocomposite with excellent fatigue resistance

Amphiphilic block co-polymer and silica reinforced epoxy composite with excellent toughness and delamination resistance for durable electronic packaging application