On nano polypyrrole and carbon nano tube reinforced PVDF for 3D printing applications: Rheological, thermal, electrical, mechanical, morphological characterization

Kumar, Raman; Pandey, Avinash Kumar; Singh, Rupinder; Kumar, Vinay

doi:10.1177/0021998320938433

Cited by 17 publications

(3 citation statements)

References 26 publications

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“…For instance, nanocomposites of PVDF and CNT have been reported, sometimes, to lead to the pure α phase without any evidence of the β polymorph [ 41 ]. The applications in different fields such as energy storage and biomedical engineering have been described in the literature [ 42 , 43 , 44 , 45 ] for these materials.…”

Section: Introductionmentioning

confidence: 99%

The β Form in PVDF Nanocomposites with Carbon Nanotubes: Structural Features and Properties

et al. 2023

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Different amounts of carbon nanotubes (CNT) have been incorporated in materials based on poly(vinylidene fluoride) (PVDF) by solvent blending followed by their further precipitation. Final processing was performed by compression molding. The morphological aspects and crystalline characteristics have been examined, additionally exploring in these nanocomposites the common routes described in the pristine PVDF to induce the β polymorph. This polar β phase has been found to be promoted by the simple inclusion of CNT. Therefore, coexistence of the α and β lattices occurs for the analyzed materials. The real-time variable-temperature X-ray diffraction measurements with synchrotron radiation at a wide angle have undoubtedly allowed us to observe the presence of the two polymorphs and determine the melting temperature of both crystalline modifications. Furthermore, the CNT plays a nucleating role in the PVDF crystallization, and also acts as reinforcement, increasing the stiffness of the nanocomposites. Moreover, the mobility within the amorphous and crystalline PVDF regions is found to change with the CNT content. Finally, the presence of CNT leads to a very remarkable increase in the conductivity parameter, in such a way that the transition from insulator to electrical conductor is reached in these nanocomposites at a percolation threshold ranging from 1 to 2 wt.%, leading to the excellent value of conductivity of 0.05 S/cm in the material with the highest content in CNT (8 wt.%).

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Section: Introductionmentioning

confidence: 99%

The β Form in PVDF Nanocomposites with Carbon Nanotubes: Structural Features and Properties

et al. 2023

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“…According to studies, [12][13][14][15] the mechanical properties are significantly affected by the variation of printing parameters, such as fill density, number of layers, raster angle, printing speed and others. [16][17][18] For better performance of composite materials developed for 3D printing parts, the types of materials used (matrix) and the percentage of reinforcements must be properly chosen. [19][20][21] Some studies 22,23 showed that the addition of metallic nanoparticles or fibers (carbon or glass) in the polymer matrix improved the tensile, compressive and flexural strength of composite polymers, while other studies showed the opposite.…”

Section: Introductionmentioning

confidence: 99%

Experimental characterization of PLA composites printed by fused deposition modelling

Rivera

Magalhães

Rubio

2022

Journal of Composite Materials

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Due to their ability to manufacture highly complex geometries, additive manufacturing technologies have applications in several industrial sectors, such as aerospace, automotive, biomedical and electronics. However, parts made of pure polymeric materials may have limitations in their applications because of the shortcomings in their mechanical properties. Thus, polymer matrix composite materials are used as an alternative to obtaining better technical characteristics, especially for parts obtained by additive manufacturing. In this work, the influence of reinforcement and printing orientation on the mechanical behavior of samples manufactured using filaments of PLA/20 wt% Al (Aluminum microparticles) and PLA/20 wt% CF (carbon fiber reinforcement) were studied. The samples were manufactured using fused deposition modelling (FDM) technology. Tests were carried out to analyze the mechanical behavior of the studied materials, such as tensile, compression, and bending. The results obtained from the mechanical tests of the reinforced filaments were compared with the results on the mechanical performance of pure PLA. The results showed the influence of the type of reinforcement, namely short fibers or microparticles, is evident. The tensile strength, compressive strength, and flexural strength were primarily influenced by the type of reinforcement and Young’s modulus was predominantly influenced by the printing angle and type of reinforcement. The fracture mechanism of composite specimens was infill gaps and interface.

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“…for head imaging and 5G connectivity applications have also outlined the scope of thermoplastics for manufacturing cost-effective antennas [3,4]. The review of the literature reported on antenna/ sensor designs and applications has outlined that 3D printable composites of polytetrafluoroethylene (PTFE)-glass fiber, PVDF-polypyrrole-carbon nanotubes, and dielectric tuned PLA may be used as sensors because such composites possess acceptable conductivity and transducer properties for sensor applications [5][6][7][8]. The role of composite, thermoplastics, thermosetting, and meta-materials has been observed as very useful in recent studies for the design and development of patch antenna structures for signal transmission and microwave applications [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

3D printed sensor for online condition monitoring of energy storage device

et al. 2022

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In the past two decades' significant studies have been reported on electrically conducting ther-moplastic composites of acrylonitrile butadiene styrene (ABS), polyvinylidene fluoride (PVDF), etc. for the fabrication of novel energy storage devices (ESD) by 3D printing. But hitherto little has been reported on online condition monitoring of ESD prepared by secondary (2°) recycling of ABS. This study reports the investigations on mechanical and electrical properties of NH4Cl-ZnCl2 (electrolyte) reinforced ABS composite (as 3D printed sensor) for online condition monitoring of ESD. In a typical dry cell, the electrolyte is one of the integral parts, and the change in its dielectric properties with the time/ applied electric load has been used to ascertain the health of ESD (online) as the internet of things (IoT) based solution (Bluetooth application) in industry sports and medicine (ISM) band (2.4 GHz). Based on melt flow index (MFI), 10% NH4Cl and 10% ZnCl2 (by weight%) were reinforced in ABS for preparing 3D printed rectangular substrates as ring resonators for cal-culating dielectric constant (er) and loss tangent/dissipation factor (tand) for the resonant frequency. Trans-mission line parameters (S21) were observed using a vector network analyzer (VNA), and a high-frequency structure simulation (HFSS) software package. The results are supported by morphological analysis of ABS composite based on scanning electron microscopy (SEM), energy dispersion spectroscopy (EDS), 3D rendering, surface roughness (Ra), area mapping, current (I)-voltage (V), and Fourier transformed infrared (FTIR) characterization.

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On nano polypyrrole and carbon nano tube reinforced PVDF for 3D printing applications: Rheological, thermal, electrical, mechanical, morphological characterization

Cited by 17 publications

References 26 publications

The β Form in PVDF Nanocomposites with Carbon Nanotubes: Structural Features and Properties

The β Form in PVDF Nanocomposites with Carbon Nanotubes: Structural Features and Properties

Experimental characterization of PLA composites printed by fused deposition modelling

3D printed sensor for online condition monitoring of energy storage device

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