Abstract Flexible and highly sensitive pressure sensors have versatile biomedical engineering applications for disease diagnosis healthcare. The fabrication of such based on porous structure composites usually requires complex, costly, nonenvironmentally friendly procedures. As such, it is desired to develop facile, economical, environment‐friendly strategies lightweight sensors. Herein, a novel design strategy reported fabricate composite via simple heat molding conductive fillers...

Simultaneously achieving high piezoresistive sensitivity, stretchability, and good electrical conductivity in conductive elastomer composites (CECs) with carbon nanofillers is crucial for stretchable strain sensor electrode applications. Here, we report a facile environmentally friendly strategy to realize these three goals at once by using branched nanotubes, also known as the nanostructure (CNS). Inspired brick-wall structure, robust segregated network of CNS formed thermoplastic...

Abstract Soft materials with widely tailorable mechanical properties throughout the material's volume can shape future of soft robotics and wearable electronics, impacting both consumer defense sectors. Herein, a platform 3D printable polymer networks unprecedented tunability stiffness nearly three orders magnitude (MPa to GPa) an inherent capability interbond is reported. The are based on dynamic covalent variable density crosslinkers attached prepolymer backbones via temperature‐reversible...

Dynamic covalent polymer networks crosslinked through Diels–Alder (DA) reactions are promising self-healing, 3D-printable materials that have the unique ability to reshuffle their dynamic bonds in solid state. Here, we identify main parameters control furan/maleimide-based DA network and relate them shape reconfigurability. Thermodynamics of were dominated by entropic effects, with more flexible crosslinkers leading higher bond dissociation temperatures. Furthermore, fraction endo vs exo...

Electrically conductive elastomer composites (CECs) have great potential in wearable and stretchable electronic applications. However, it is often challenging to trade off electrical conductivity mechanical flexibility melt-processed CECs for Here, we develop with high elasticity by controlling the segregated networks of carbon nanofillers formed at interface. The nanofiller dimensionality has a significant influence on properties thermoplastic polyurethane (TPU) composites. For instance, 3D...

Abstract As an alternative of single filler system, hybrid fillers system is beneficial for the fabrication elastomer‐based piezoresistive strain sensors with high sensitivity structural health monitoring and human motion detection. However, a comprehensive understanding effect secondary dimensionality on sensor by carbon nanofillers strategy missing. Here, we report comparative study about branched nanostructures (CNS, three‐dimensional, 3D) combined black (CB, 0D) or nanotubes (CNT, 1D)...

Wearable strain sensors have significant potential applications for the development of Internet Things. As such, based on conductive elastomer composites (CECs) various sensing require different piezoresistive properties, i.e., sensitivity and ranges. Herein, we report a facile strategy to fabricate thermoplastic polyurethane (TPU)/carbon nanostructure (CNS) designed interface network morphologies via forming filler at segregated TPU particles with sizes. This renders tunable electrical...

Herein, radio frequency (RF) Joule heating is used to trigger dynamic covalent bond exchange in a furan‐maleimide Diels–Alder polymer (DAP). Prior work shows that carbon susceptors can be incorporated into materials and undergo when exposed an electric field. nanotubes (CNTs) are added the DAP make material responsive RF fields, enable selective, noncontact healing behavior of after field exposure. After healing, mechanical testing conducted compare tensile strength toughness healed samples...

Conductive elastomer composites (CECs) with segregated filler networks display a combination of good mechanical properties and electrical conductivity, enabling potential applications in flexible stretchable electronics. However, it is challenging to achieve high strain sensitivity retain elasticity. Here, hybrid fillers carbon nanostructures (CNS, also known as branched nanotubes) graphene are used thermoplastic polyurethane (TPU)‐based CECs without decreasing elasticity conductivity. By...

Abstract Flexible, light‐weight, and wearable electronics have significant potential for the development of Internet Things. Flexible sensors with tunable piezoresistive properties are in high demand various practical applications. Herein, different morphology thermoplastic polyurethane (TPU)/ carbon nanostructure (CNS) composites segregated network obtained by swelling TPU powders using solvents. The better solvent TPU, dimethylformamide (DMF), renders 0.7 wt% CNS stronger polymer‐filler...

Natural hydraulic lime (NHL) is a cementitious material widely used in the restoration of stone cultural relics and maintenance historic buildings, practical use which mainly hindered by its poor fluidity. Due to multilayer (double-layer) adsorption that isobutylene-maleic anhydride (IBMA) has on surface NHL, effects IBMA copolymer have fluidity hydration NHL were thus investigated. Moreover, yield stress plastic viscosity pastes found be reduced significantly incorporation IBMA. Combined...

To realize the efficient differential sensing of phenolic pollutants in sewage, a novel strategy was successfully developed based on nanozyme (GMP-Cu) with polyphenol oxidase activity. Phenolic can be oxidized using GMP-Cu, and oxidation products reacts subsequently 4-aminoantipyrine to produce quinone-imine compound. The absorption spectra final that resulted from different showed obvious differences, which were due interaction difference between GMP-Cu pollutants, as well molecular...

The intrinsic reversibility of dynamic covalent bonding, such as the furan-maleimide Diels-Alder (DA) cycloaddition reactions, enables reprocessable, self-healing polymer materials that can be reconfigured via mechanism solid-state plasticity. In this work, temperature-dependent exchange rates stereochemically distinct endo and exo DA bonds are leveraged to achieve tunable, temperature- stress-activated shape morphing in (DAP) networks. Through thermal annealing, ≈35% isomers converted neat...

Multiwalled carbon nanotube (MWNT) aerogel mats were irradiated with ions to explore the effect of irradiation-induced sp 3 bonds and 2 bond defects on ultrahigh strain rate mechanical properties. Energy dissipation was measured using a microprojectile impact test. Specific penetration energy <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"> <mml:mrow> <mml:msubsup> <mml:mi>E</mml:mi> <mml:mi>p</mml:mi> <mml:mo>*</mml:mo> </mml:msubsup> </mml:mrow>...

With the development of computer and Internet technology, enterprises need scientific effective management available information resources to make full use them. Traditionally, paper is used as medium. However, on hard edit, store, check. Moreover, this way has a higher requirement for employees. This study adopts B/S architecture build an system, which contains complete NC machine tools well components. The system uses framework platform, SQL Server 2005 database. application can fit most browsers.