Reprocessed poly(vinylidene fluoride): A comparative approach for mechanical recycling purposes

Veiga, Amanda Garcez; Dias, Frederico G. de A.; Batista, Luciano N.; Rocco, Maria Luiza M.; Costa, Márcio Henrique Sá Netto

doi:10.1016/j.mtcomm.2020.101269

Cited by 6 publications

(2 citation statements)

References 50 publications

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“…PVDF and its copolymers are one of the most robust and multifunctional polymeric materials, demonstrating its applicability in a wide variety of applications, including sensors, electronic devices, piezoelectric generators, scaffolds for tissue engineering, and portable analytical devices, among others. , The sustainability concerns of this fluorinated polymer are being addressed by its durability and multifunctionality in the applications. More environmentally friendly syntheses and efforts to recover and/or recycle and/or reuse them are also occurring. − …”

Section: Introductionmentioning

confidence: 99%

Smart and Multifunctional Materials Based on Electroactive Poly(vinylidene fluoride): Recent Advances and Opportunities in Sensors, Actuators, Energy, Environmental, and Biomedical Applications

Costa,

Cardoso,

Martins

et al. 2023

Chem. Rev.

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From scientific and technological points of view, poly(vinylidene fluoride), PVDF, is one of the most exciting polymers due to its overall physicochemical characteristics. This polymer can crystalize into five crystalline phases and can be processed in the form of films, fibers, membranes, and specific microstructures, being the physical properties controllable over a wide range through appropriate chemical modifications. Moreover, PVDF-based materials are characterized by excellent chemical, mechanical, thermal, and radiation resistance, and for their outstanding electroactive properties, including high dielectric, piezoelectric, pyroelectric, and ferroelectric response, being the best among polymer systems and thus noteworthy for an increasing number of technologies. This review summarizes and critically discusses the latest advances in PVDF and its copolymers, composites, and blends, including their main characteristics and processability, together with their tailorability and implementation in areas including sensors, actuators, energy harvesting and storage devices, environmental membranes, microfluidic, tissue engineering, and antimicrobial applications. The main conclusions, challenges and future trends concerning materials and application areas are also presented.

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Section: Introductionmentioning

confidence: 99%

Smart and Multifunctional Materials Based on Electroactive Poly(vinylidene fluoride): Recent Advances and Opportunities in Sensors, Actuators, Energy, Environmental, and Biomedical Applications

Costa,

Cardoso,

Martins

et al. 2023

Chem. Rev.

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“…Due to the di cult biodegradability of solid wastes containing uoropolymers, the resource utilization of waste PVDF membranes has always been a major issue affecting the ecological environment and human health [9,10]. Conventional incineration or land ll disposal of waste PVDF polymers not only causes environmental pollution but also wastes resources of PVDF polymers [11,12]. In recent years, many researchers have also developed their resource disposal methods, including recycling PVDF membranes as raw materials for membrane production [13], adding new llers to assist in the preparation of high-capacitance carbon materials [14], and using degradation methods to recover F elements and prepare oil-water separation sponges [15].…”

Section: Introductionmentioning

confidence: 99%

Influence of PAO@PSF microcapsules on the tribological properties of polyvinylidene fluoride matrix recovered from waste membranes

Liang

et al. 2023

Preprint

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In the study, the waste polyvinylidene fluoride (PVDF) membranes were recovered and the micropowders of this polymer were obtained by solvent recovery method. Moreover, the new direction for applying waste PVDF membranes to the field of tribology were developed. Thus, a novel PVDF-based tribological composite (PAO@PSF/PVDF) was fabricated with recycled PVDF micropowders acted as the matrix polymer and PAO@PSF microcapsules with the configuration of polysulfone (PSF) capsuling lubricant oil (PAO) served as the filler. The self-lubricating and wear properties of PAO@PSF/PVDF composite were tested under dry sliding condition using a ball-on-disc configuration. In particular, this kind of composite with the inclusion of 20 wt% PAO@PSF microcapsules exhibited the best tribological properties, i.e., the lowest friction coefficient (0.077) and the smallest wear rate (2.34×10-15 m3/Nm). The filling of PAO@PSF microcapsules greatly improved the antifriction and wear resistance of PVDF, guaranteeing the self-lubricating feature of this polymer. The tribological properties of PAO@PSF/PVDF composite can reach close to those under the condition of dripping lubricating oil, and the prepared PAO@PSF/PVDF self-lubricating composite can be applied to a large range of friction conditions. Furthermore, without any doubt, it will facilitate the reutilization of waste polymers.

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High‐Permittivity Polysiloxanes for Bright, Stretchable Electroluminescent Devices

von Szczepanski,

Wolf,

et al. 2024

Advanced Optical Materials

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Stretchable alternating current electroluminescent (ACEL) devices have a bright future in wearable electronics and soft robotics. Still, their market application is hindered by high operating voltages. The voltage can be reduced by increasing the relative permittivity of the dielectric elastomer in the emissive layer. Here, a fluorine‐free high‐permittivity silicone elastomer functionalized with cyanopropyl side groups, specially designed for application in stretchable ACEL devices, is introduced. The polar silicone elastomer exhibits excellent mechanical properties and a dielectric permittivity four times higher than commercial PDMS. Light‐emitting devices based on the polar elastomer reach 7.5 times higher maximum luminance at the same electric field than PDMS‐based devices and turn on at a 50% lower electric field. Besides, the polar elastomer‐based devices perform better than all materials tested in literature in achieving high luminance at low electric fields. Stretchable ACEL devices are built from the polar elastomer which shows bright and uniform light emission and can be operated up to 50% strain. The high‐permittivity silicones are promising materials for stretchable ACEL devices and can help their breakthrough to market application by overcoming the drawback of high operating voltages.

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Reprocessed poly(vinylidene fluoride): A comparative approach for mechanical recycling purposes

Cited by 6 publications

References 50 publications

Smart and Multifunctional Materials Based on Electroactive Poly(vinylidene fluoride): Recent Advances and Opportunities in Sensors, Actuators, Energy, Environmental, and Biomedical Applications

Smart and Multifunctional Materials Based on Electroactive Poly(vinylidene fluoride): Recent Advances and Opportunities in Sensors, Actuators, Energy, Environmental, and Biomedical Applications

Influence of PAO@PSF microcapsules on the tribological properties of polyvinylidene fluoride matrix recovered from waste membranes

High‐Permittivity Polysiloxanes for Bright, Stretchable Electroluminescent Devices

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