Intrinsically conducting polymers (ICP) and conductive fillers incorporated conductive polymer-based composites (CPC) greatly facilitate the research in electromagnetic interference (EMI) s...

Electromagnetic Interference Shielding Polymers and Nanocomposites - A Review

Micrometer boron nitride/polyamide acid ( m BN/PAA) compound was firstly fabricated via in -situ polymerization, performed to obtain the m BN/PAA electrospun fibers by electrospinning technology, finally to fabricate the dielectric thermally conductive m BN/polyimide ( m BN/PI) composites via thermal-imidization followed by hot press method. The obtained m BN/PI composite with 30 wt% m BN presents relatively highly thermally conductive coefficient ( λ ), excellent dielectric constant ( e ) & dielectric loss tangent (tan  δ ), and extremely outstanding thermal stability, λ of 0.696 W/m K, e of 3.77, tan  δ of 0.007, T Heat-resistance index ( T HRI ) of 279 °C and glass transition temperature ( T g ) of 240 °C, which presents a great potential for packaging in integration and miniaturization of microelectronic devices.

Dielectric thermally conductive boron nitride/polyimide composites with outstanding thermal stabilities via in-situ polymerization-electrospinning-hot press method

Porous lignin based poly (acrylic acid)/organo-montmorillonite nanocomposites: Swelling behaviors and rapid removal of Pb (II) ions

There is a growing demand for stretchable strain sensors because of their potential applications in various emerging fields, such as human motion detection, health monitoring, wearable electronics, and soft robotic skin. Recently, strain sensors based on flexible conductive polymer composites (FCPCs) composed of conductive materials and a stretchable elastomer have received intensive attention owing to their high stretchability, good flexibility, excellent durability, tunable strain sensing behaviors, and ease of processing. Here, we systematically summarize the recent progress of stretchable strain sensors based on FCPCs. This review covers the classification and sensing mechanisms as well as the influence of multiple factors on the sensing behaviors of FCPC based strain sensors with detailed examples.

An overview of stretchable strain sensors from conductive polymer nanocomposites

Non-covalently functionalized graphene strengthened poly(vinyl alcohol)

We present a simple but efficient route to prepare a highly anisotropic conductive plastic thin film from the polypropylene/(styrene-ethylene/butadiene-styrene) triblock copolymer/graphene blend via shear-induced self-assembly. Under the shear-flow induction, GE nanosheets dispersed in the polymer matrix can spontaneously assemble into ordered parallel stripes, which endow the materials significantly conductive anisotropy. The electrical resistivity in the direction parallel to the graphene stripes is almost four orders of magnitude lower than that which is perpendicular to the stripes. This study provides a new method for the precise control of the organization of functional nano-objects in polymer matrix, which can be widely extended to the fabrication of other multifunctional anisotropic materials of interest in various fields.

Tailored Parallel Graphene Stripes in Plastic Film with Conductive Anisotropy by Shear-Induced Self-Assembly

In our previous study (Mao et al. J. Phys. Chem. Lett. 2013, 4, 43−47), we proposed a novel method, that is, the shear-flow-induced hierarchical self-assembly of two-dimensional fillers (octadecylamine-functionalized graphene) into the well-ordered parallel stripes in a polymer matrix, to fabricate the anisotropic conductive materials. In this study, we extend this method to one-dimensional multiwalled carbon nanotubes (MWCNTs). Under the induction of shear flow, the dispersed poly(styrene ethylene/butadiene-styrene) (SEBS) phase and MWCNTs can spontaneously assemble into well-ordered parallel stripes in the polypropylene (PP) thin film. The electrical measurements indicate that the electrical resistivity in the direction parallel to the stripes is almost 6 orders of magnitude lower than that in the perpendicular direction, which is by far the most striking conductive anisotropy for the plastic anisotropic conductive materials. In addition, it is found that the size of the MWCNT stripe as well as the elec...

Parallel Carbon Nanotube Stripes in Polymer Thin Film with Remarkable Conductive Anisotropy

It is known that shear-flow can induce units to assemble into vorticity-aligned stripe-structures in confined geometries. This study shows that the microstructure and the property of the stripe in polymer thin film can be well tuned by adjusting the viscosity ratio between dispersed phase and continuous phase. Polypropylene (PP)/poly(styrene–ethylene/butadiene–styrene) (SEBS)/octadecylamine functionalized multiwalled carbon nanotubes (ODA-MWCNTs) composites with different viscosity ratios were prepared by either pre-compounding ODA-MWCNT into PP or SEBS in a microcompounder. Under the induction of shear-flow, ODA-MWCNT and SEBS spontaneously assembled into vorticity-aligned stripes in PP thin films for all the composites with different viscosity ratios, resulting in the property of conductive anisotropy for the film. Interestingly, it was found that both the microstructures and the electrical properties of MWCNT stripes in PP thin films prepared from the composites with different viscosity ratios were significantly different.

Parallel carbon nanotube stripes in polymer thin film with tunable microstructures and anisotropic conductive properties

Parallel carbon nanotube stripes in polymer thin film with tunable microstructures and anisotropic conductive properties Part A Applied science and manufacturing

Fabrication of Polymer Film with Extraordinary Conductive Anisotropy by Forming Parallel Conductive Vorticity‐Aligned Stripes and Its Formation Mechanism

Qingxin Tang

Papers

Tailored Parallel Graphene Stripes in Plastic Film with Conductive Anisotropy by Shear-Induced Self-Assembly

Parallel Carbon Nanotube Stripes in Polymer Thin Film with Remarkable Conductive Anisotropy

Parallel carbon nanotube stripes in polymer thin film with tunable microstructures and anisotropic conductive properties

Parallel carbon nanotube stripes in polymer thin film with tunable microstructures and anisotropic conductive properties Part A Applied science and manufacturing

Fabrication of Polymer Film with Extraordinary Conductive Anisotropy by Forming Parallel Conductive Vorticity‐Aligned Stripes and Its Formation Mechanism