Additive Manufactured Carbon Nanotube/Epoxy Nanocomposites for Heavy-Duty Applications

Jiang, Qixiang; Zhang, Haiguang; Rusakov, Dmitrii; Yousefi, Neptun; Bismarck, Alexander

doi:10.1021/acsapm.0c01011

Cited by 19 publications

(14 citation statements)

References 29 publications

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“…64 Recent reports have demonstrated that, using CNT ink as fillers drastically improved the electrical and mechanical properties of polymers. 64,65 Even in past, BMC, a leading Swiss bicycle brand, for the first time introduced complete bicycle frame with CNT nanocomposite. 66 In the year 2011, a company named Nanocomp Technologies, developed a CNT-based composite known as Emshield for NASA's Juno spacecraft for protection against electrostatic discharge (ESD).…”

Section: Carbon Nanotube (Cnt)-based Additive Technologymentioning

confidence: 99%

Unraveling the Translational Exchange between Academic Research and product Scale-up for disruptive technologies: Critical Comments on Devices and path forward.

Nandi

Vijayan²,

Chhetri

2022

Preprint

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Academic translational research efforts to industry are often an underlying sought-after goal among the researchers. Through the interchanges of research endeavors between academia-industry, great innovations can/has been achieved that cater to the real-world application by bridging “industrially relevant” problem solving with pursuing fundamental concepts. It is pertinent that most of the studies from university level research works may not translate into demonstrable products in the market as many factors are at play here which are beyond the scope or reach of academic researchers. Funding support, individual goals of researchers, socio-economic factors and most importantly the technical know-how of generating revenue strategies to make it a profitable startup are few of the factors that have slowed the pace of collaborative efforts. However, we believe that the most critical factor is identification of the critical parameters that solves long standing problems that hinder the scale-up of the lab scale research into marketable products. To illustrate this, we take three most relevant examples, devices for fuel generation, devices to utilize solar radiation and devices for sensing and other related applications. In this perspective article, we provide an in-depth case study of each of these critical parameters to comment on the direction of research avenues that can serve as step-stones for the commercialization of university-level lab research studies.

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Section: Carbon Nanotube (Cnt)-based Additive Technologymentioning

confidence: 99%

Unraveling the Translational Exchange between Academic Research and product Scale-up for disruptive technologies: Critical Comments on Devices and path forward.

Nandi

Vijayan²,

Chhetri

2022

Preprint

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“…Nanoparticles were prepared and mixed with the printing lament to produce a new one[6, [17][18][19]. Some research focuses on improving the overall mechanical properties of the 3D printed part by decreasing its anisotropy or increasing its isotropic behavior [20,21].They replaced the thermoplastic polymers that results in poor chemical and thermal properties by two-component epoxy resin [20],epoxy resin poses good chemical and physical properties and gives high-strength bonding, with light weight structures withstanding high static loads [22,23]. Filippova et al [21] impregnated ABS 3D printed samples in epoxy resin compound with different hardeners.…”

Section: Introductionmentioning

confidence: 99%

“…This results in improving the overall part stiffness and strength by up to 25% and 45% respectively. Moreover, Jiang et al [20] used epoxy as the main raw material in FDM technique to get the best use of its mechanical properties and print products can be used in harsh conditions. Tensile specimens were printed of a mixture of only epoxy and CNT giving a tensile strength of 55 MPa.…”

Section: Introductionmentioning

confidence: 99%

Effects of a New Filling Technique on the Mechanical Properties of ABS Specimens Manufactured by Fused Deposition Modeling

Hussam

Abdelrhman²,

Soliman³

et al. 2022

Preprint

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No one can deny the widespread of 3D printing in many different fields. This paper aims to improve the mechanical properties of parts printed by fused deposition modeling (FDM) technique. Acrylonitrile butadiene styrene (ABS) specimens are printed with custom printing parameters, these parameters give a tensile strength that is 86% of the injection molded ABS strength, and give one of the best results recorded for 100% infill printed ABS tensile specimens. Furthermore, a post filling technique has been studied, specimens are printed with inner voids and different densities using slicing software. Void shape is precisely selected to conform to the filling process. High-strength low-cost thermoset resin is injected through specimens to fill these voids. A tensile test has been performed after full curing of the resin and a morphology analysis is done. By this technique strength to printed weight ratio is improved by 151% and the cost is reduced by 51%.

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“…Therefore, fluids with shear thinning behavior and yield stress (yield pseudoplastic fluid) are commonly used for DIW, which can be self-supporting at the stationary state and has decreased viscosity during pressurized extrusion. 23,24 Because the regular neat thermosetting materials do not meet such requirements, modifications of the feedstocks or printing methods, such as reinforcing filler addition, 19,21,22,25,26 extruding through twopart mixing head 20 to deposition through two-part mixing head or after deposition by thermal curing with the aid of the filler inclusion. However, the DIW of resins infilled by inorganic fillers has a few drawbacks.…”

Section: Introductionmentioning

confidence: 99%

“…The nozzle can deposit the materials in three dimensions layer by layer on the platform. Therefore, fluids with shear thinning behavior and yield stress (yield pseudoplastic fluid) are commonly used for DIW, which can be self-supporting at the stationary state and has decreased viscosity during pressurized extrusion. , Because the regular neat thermosetting materials do not meet such requirements, modifications of the feedstocks or printing methods, such as reinforcing filler addition, ,,,, extruding through two-part mixing head are necessary to accommodate this extrusion-based method. Correspondingly, curing can be conducted prior to deposition through two-part mixing head or after deposition by thermal curing with the aid of the filler inclusion.…”

Section: Introductionmentioning

confidence: 99%

3D Printable All-Polymer Epoxy Composites

Shen

Wang

Lee

et al. 2021

ACS Appl. Polym. Mater.

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Herein, 3D printable polymer-toughened epoxy resin composites are reported. Epoxy resins are widely used due to their excellent properties, such as thermal and chemical stability. However, their applications are limited by traditional mold-based manufacturing and their high brittleness. Mixtures of homopolymers, diblock copolymers, and triblock copolymers composed of poly(phenylene ether), poly(styrene), poly(methyl methacrylate), and poly(ethylene oxide) that self-assemble into micelles in the uncured resin are employed, providing a balance of structure, creep resistance, and flowability that enables 3D printing processing techniques and retention of shape from the time of printing throughout the cured state. The precured ink is solid at room temperature and has strong shear-thinning behavior at elevated temperature for printing. As the printed parts cure, the polymer morphology evolves via reaction-induced phase separation to yield finished composites with enhanced mechanical properties, including a 40% increase in the impact strength compared to the neat epoxy, without compromising thermal properties.

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Additive Manufactured Carbon Nanotube/Epoxy Nanocomposites for Heavy-Duty Applications

Abstract: A solid epoxy resin formulation containing 2.5 wt % carbon nanotubes is 3D printed into self-standing parts, which after thermal curing result in CNTs/epoxy nanocomposites with mechanical properties attractive for heavy-duty applications.

Cited by 19 publications

References 29 publications

Unraveling the Translational Exchange between Academic Research and product Scale-up for disruptive technologies: Critical Comments on Devices and path forward.

Unraveling the Translational Exchange between Academic Research and product Scale-up for disruptive technologies: Critical Comments on Devices and path forward.

Effects of a New Filling Technique on the Mechanical Properties of ABS Specimens Manufactured by Fused Deposition Modeling

3D Printable All-Polymer Epoxy Composites

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