Thermal conductivity and stability of a three‐phase blend of carbon nanotubes, conductive polymer, and silver nanoparticles incorporated into polycarbonate nanocomposites

Patole, Archana S.; Ventura, Isaac Aguilar; Lubineau, Gilles

doi:10.1002/app.42281

Cited by 11 publications

(10 citation statements)

References 22 publications

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“…To this end, 3DP materials that provide functionality beyond that of conventional pure printing materials (e.g., pure resins) are required to meet the property requirements for fabricated structures for targeted applications. Nanomaterials can confer multifunctional properties to the printing of pure materials where they can serve as structural, sensing, heating, magnetic, and conductive elements . The resulting nanocomposites, possessing unique properties, could expand the utilization of 3DP in various areas.…”

Section: Nanocomposites: Preparation Strategies Properties and Benementioning

confidence: 99%

“…To the best of our knowledge, the powder‐bed is the only technology among other inkjet 3DP techniques that has been used for the fabrication of 3D parts using nanocomposites. Other inkjet 3DP methods in which the ink is replaced by melted thermoplastic polymers or liquid photopolymers also have potential for the fabrication of 3D nanocomposite structures …”

Section: Dp Techniquesmentioning

confidence: 99%

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Three‐Dimensional Printing of Multifunctional Nanocomposites: Manufacturing Techniques and Applications

2016

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The integration of nanotechnology into three-dimensional printing (3DP) offers huge potential and opportunities for the manufacturing of 3D engineered materials exhibiting optimized properties and multifunctionality. The literature relating to different 3DP techniques used to fabricate 3D structures at the macro- and microscale made of nanocomposite materials is reviewed here. The current state-of-the-art fabrication methods, their main characteristics (e.g., resolutions, advantages, limitations), the process parameters, and materials requirements are discussed. A comprehensive review is carried out on the use of metal- and carbon-based nanomaterials incorporated into polymers or hydrogels for the manufacturing of 3D structures, mostly at the microscale, using different 3D-printing techniques. Several methods, including but not limited to micro-stereolithography, extrusion-based direct-write technologies, inkjet-printing techniques, and popular powder-bed technology, are discussed. Various examples of 3D nanocomposite macro- and microstructures manufactured using different 3D-printing technologies for a wide range of domains such as microelectromechanical systems (MEMS), lab-on-a-chip, microfluidics, engineered materials and composites, microelectronics, tissue engineering, and biosystems are reviewed. Parallel advances on materials and techniques are still required in order to employ the full potential of 3D printing of multifunctional nanocomposites.

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Section: Nanocomposites: Preparation Strategies Properties and Benementioning

confidence: 99%

Section: Dp Techniquesmentioning

confidence: 99%

Three‐Dimensional Printing of Multifunctional Nanocomposites: Manufacturing Techniques and Applications

2016

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“…To this end, double percolation in hybrid systems using two different fillers, confining nanofillers in any one of the phases of a biphasic polymer, and the creation of repulsive forces between nanofillers and the host polymer (e.g., polar/non‐polar) were demonstrated as efficient techniques to enhance the nanocomposites conductivity. Recently, other hybrid systems composed of two different fillers (e.g., carbon nanotubes and silver nanoparticles) and two different polymers (e.g., PEDOT:PSS and polycarbonate) with improved electrical conductivity have been reported in the literature …”

Section: Introductionmentioning

confidence: 99%

Electrically Conductive Silver Nanoparticles‐Filled Nanocomposite Materials as Surface Coatings of Composite Structures

et al. 2016

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Silver nanoparticles-filled nanocomposite materials are fabricated and used as electrically conductive coatings for aerospace composite structures. Silver nanoparticles are first synthesized, then mixed with polymer solutions, and applied onto the surface of carbon fiber composite substrates either by casting or spraying technique. Two design strategies are studied: the reduction of nanofillers contact resistance using a conductive polymer as binder and the addition of a second polymer to fabricate a ternary biphasic nanocomposite for the further improvement of mechanical resistance of the coatings. The coatings are then annealed at different temperatures up to 200 C and characterized using various techniques in order to evaluate their morphology, electrical resistivity, and mechanical performance. The thermal annealing considerably improves the adhesion of the coatings to the composite substrates as well as the scratch resistance of the coatings. A significant improvement (approx. six orders) of electrical properties is achieved for a %10 mm-thick coating film after the thermal annealing. The best results are achieved with silver nanoparticles mixed with the conductive polymer binder with the maximum resistivity of 4.2 Â 10 À3 V g cm À2 . The conductivity achieved here is fairly close to that values required in order for the materials to be used for coating of composite structures in potential aerospace applications such as electromagnetic interference shielding and lighting strike protection.

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“…According to the results above, it is confirmed that CNTs/photopolymer composites belong to dielectric loss materials. The dielectric loss mainly attributed to electron polarization relaxation and polarization at interfaces, converting microwave energy into thermal energy inside the material , and the efficiency of conversion depends on the filler aspect ratio, conductivity, and interface surface area between the filter and polymer matrix .…”

Section: Resultsmentioning

confidence: 99%

Additive manufacturing of carbon nanotube‐photopolymer composite radar absorbing materials

Zhang

Yang

et al. 2016

Polymer Composites

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Additive manufacturing (AM) including Stereolithography (SLA) and more recent 3D printing derivatives is an innovative manufacturing technology, where objects can be manufactured by accumulation of successive layers of materials. Such technology enables the fabrication of highly customized radar absorbing materials (RAM) and novel RAM structures. The microwave absorption, printability, complex electromagnetic parameters were measured, acrylic ester photopolymer with carbon nanotubes (CNTs) content ranging from 0.5% to 1.5% prepared with digital masking AM technology. Good dispersion and the content of CNTs have major influences on the successful preparation. The printability limit of multiwalled CNT is found to be 1.6%.The maximum absorption of 6 mm‐thick composites is measured to be −15.98 dB with 1.5% CNT content. The real part ( ε′) of permittivity increases from 2.5 to 7 and the imaginary part ( ε″) of permittivity increases from 0.2 to 1.0 with the increasing content of CNTs. Frequencies, thickness, uniformly distribution of CNT and CNT content are the main factors affecting the RAM properties. The calculated reflection loss, for 12 mm‐thick composites, are −7 dB, −26 dB, and −34 dB for 0.5%, 1%, and 1.5% of CNT contents, respectively, and the matching frequency shifts to lower frequencies with the increase of thickness or CNT content, which is in agreement with electromagetic theory and experiment results. POLYM. COMPOS., 39:E671–E676, 2018. © 2016 Society of Plastics Engineers

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Thermal conductivity and stability of a three‐phase blend of carbon nanotubes, conductive polymer, and silver nanoparticles incorporated into polycarbonate nanocomposites

Cited by 11 publications

References 22 publications

Three‐Dimensional Printing of Multifunctional Nanocomposites: Manufacturing Techniques and Applications

Three‐Dimensional Printing of Multifunctional Nanocomposites: Manufacturing Techniques and Applications

Electrically Conductive Silver Nanoparticles‐Filled Nanocomposite Materials as Surface Coatings of Composite Structures

Additive manufacturing of carbon nanotube‐photopolymer composite radar absorbing materials

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