Self-healable and recyclable polyurethane-polyaniline hydrogel toward flexible strain sensor

Fang, Yuanlai; Xu, Junhuai; Gao, Feng; Du, Xiaosheng; Du, Zongliang; Cheng, Xu; Wang, Haibo

doi:10.1016/j.compositesb.2021.108965

Cited by 99 publications

(58 citation statements)

References 63 publications

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“…The healing behavior can be realized autonomously through the reversibility of dynamic covalent bonds. 19,20 Due to the low bond energy of disulfide bonds, the broken disulfide bonds would facilely re-form in mild conditions. It is this facile reversible transformation that has led to the widespread application of disulfide bonds in the design of self-healing materials.…”

Section: Introductionmentioning

confidence: 99%

Highly stretchable, self-healable, and self-adhesive ionogels with efficient antibacterial performances for a highly sensitive wearable strain sensor

Wang

et al. 2022

J. Mater. Chem. B

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Section: Introductionmentioning

confidence: 99%

Highly stretchable, self-healable, and self-adhesive ionogels with efficient antibacterial performances for a highly sensitive wearable strain sensor

Wang

et al. 2022

J. Mater. Chem. B

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“…PANI is a broadly studied intrinsically conducting polymer using dopants, which is employed to project soft films for flexible strain sensors. Wang et al fabricated a novel stretchable, sensitive, self-healing, and recyclable PANI/PU hydrogel sensor through in-situ polymerization of aniline, generating a double network [ 64 ]. The prepared hydrogel showed 1.1 MPa of strength, 0.3 MPa of Young’s modulus, and 500% of elongation at break, which were skin-like mechanical properties, as shown in Figure 2 .…”

Section: Diverse Types Of Conductive Pu-based Nanocompositesmentioning

confidence: 99%

“…One of the other electrical features of replaced polyaniline, such as poly(ortho-toluidine) (POT), for diverse applications has inflamed researchers base passion, especially facing the development of electrochromic devices. The performance of POT nanoparticles dispersed in PU matrices through a solution blending technique was reported in 2014 [ 64 ]. The minimal dispersion (0.25–1.0 wt.%) of POT in castro oil polyurethane (COPU) considerably increases the thermal stability, physicomechanical properties, and corrosion resistance performance of these coatings.…”

Section: Diverse Types Of Conductive Pu-based Nanocompositesmentioning

confidence: 99%

Revised Manuscript with Corrections: Polyurethane-Based Conductive Composites: From Synthesis to Applications

Choi¹,

Shin

et al. 2022

IJMS

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The purpose of this review article is to outline the extended applications of polyurethane (PU)-based nanocomposites incorporated with conductive polymeric particles as well as to condense an outline on the chemistry and fabrication of polyurethanes (PUs). Additionally, we discuss related research trends of PU-based conducting materials for EMI shielding, sensors, coating, films, and foams, in particular those from the past 10 years. PU is generally an electrical insulator and behaves as a dielectric material. The electrical conductivity of PU is imparted by the addition of metal nanoparticles, and increases with the enhancing aspect ratio and ordering in structure, as happens in the case of conducting polymer fibrils or reduced graphene oxide (rGO). Nanocomposites with good electrical conductivity exhibit noticeable changes based on the remarkable electric properties of nanomaterials such as graphene, RGO, and multi-walled carbon nanotubes (MWCNTs). Recently, conducting polymers, including PANI, PPY, PTh, and their derivatives, have been popularly engaged as incorporated fillers into PU substrates. This review also discusses additional challenges and future-oriented perspectives combined with here-and-now practicableness.

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“…The as-designed resistive sensors exhibit better sensitivity, and the working range extended up to 100%. Apart from 100% stretchability, the durability cycles were performed for 25% strain to study the reliability of the strain sensors [123]. Another strategy to improve the sensitivity is by forming the piezoresistive sensors' designs with micro-cracks, and the freestanding 3D PANI sponge employs a simple electropolymerization technique of Ni foam as a sacrificing template (Figure 5a).…”

Section: Polyaniline Sensorsmentioning

confidence: 99%

Recent Progress in Conducting Polymer Composite/Nanofiber-Based Strain and Pressure Sensors

et al. 2021

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The Conducting of polymers belongs to the class of polymers exhibiting excellence in electrical performances because of their intrinsic delocalized π- electrons and their tunability ranges from semi-conductive to metallic conductive regime. Conducting polymers and their composites serve greater functionality in the application of strain and pressure sensors, especially in yielding a better figure of merits, such as improved sensitivity, sensing range, durability, and mechanical robustness. The electrospinning process allows the formation of micro to nano-dimensional fibers with solution-processing attributes and offers an exciting aspect ratio by forming ultra-long fibrous structures. This review comprehensively covers the fundamentals of conducting polymers, sensor fabrication, working modes, and recent trends in achieving the sensitivity, wide-sensing range, reduced hysteresis, and durability of thin film, porous, and nanofibrous sensors. Furthermore, nanofiber and textile-based sensory device importance and its growth towards futuristic wearable electronics in a technological era was systematically reviewed to overcome the existing challenges.

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Self-healable and recyclable polyurethane-polyaniline hydrogel toward flexible strain sensor

Cited by 99 publications

References 63 publications

Highly stretchable, self-healable, and self-adhesive ionogels with efficient antibacterial performances for a highly sensitive wearable strain sensor

Highly stretchable, self-healable, and self-adhesive ionogels with efficient antibacterial performances for a highly sensitive wearable strain sensor

Revised Manuscript with Corrections: Polyurethane-Based Conductive Composites: From Synthesis to Applications

Recent Progress in Conducting Polymer Composite/Nanofiber-Based Strain and Pressure Sensors

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