High-strength epoxy nanocomposites for 3D printing

Hmeidat, Nadim S.; Kemp, James W.; Compton, Brett G.

doi:10.1016/j.compscitech.2018.03.008

Cited by 142 publications

(77 citation statements)

References 40 publications

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“…Another fruitful approach is the use of ow during extrusion, sometimes in coordination with external elds, to align anisotropic particles (typically bres or platelets) in a matrix (usually organic). 62,63 In some cases, both approaches are combined and preforms are built using bres or platelets that can be subsequently inltrated to generate the composite material. 29 Usually, when printing structural composites, the focus is oen to enhance fracture resistance.…”

Section: Single-paste Cartridge Systemsmentioning

confidence: 99%

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Direct ink writing advances in multi-material structures for a sustainable future

et al. 2020

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Section: Single-paste Cartridge Systemsmentioning

confidence: 99%

“…An example is when bre-reinforced epoxies are made printable by incorporating nano-clays. 62 In this case there may be limits to the reinforcement content and it is important to ensure that the additions are not detrimental to the mechanical performance of the product.…”

Section: Structural Controlmentioning

confidence: 99%

Direct ink writing advances in multi-material structures for a sustainable future

et al. 2020

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“…As such, clay/polymer nanocomposites are considered one of the most popular types of inks for 3D printing. Recently, Compton and co‐workers fabricated garamite/epoxy nanocomposites by using a custom DW 3D printing platform comprised of a three‐axis positioning stage . The inks were prepared by mixing epoxy resin with proper quantities of garamite nanosheets.…”

Section: Design and Fabricationmentioning

confidence: 99%

Strategic Design of Clay‐Based Multifunctional Materials: From Natural Minerals to Nanostructured Membranes

Zhou

LaChance

Smith

et al. 2019

Adv Funct Materials

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Nature not only carefully prepares ingenious raw materials but also continuously inspires and guides human beings to create a wide variety of intelligent materials. As the most abundant mineral resource on earth, clay minerals are no longer synonymous with ceramics and cements. Many natural clay minerals can be exfoliated into single-or few-layered nanosheets with exquisite physicochemical properties, which can be reassembled into functional membranes with a macroscopic controllable size and microscopic ordered structure. They are thus used in many fields including chemistry, biology, energy, and environmental science. Strategic design represents one of the key processes to enhance the value of clay minerals and broaden their applications. In this work, the three frequently used approaches of exfoliation are highlighted and the six routes of assembly including casting, dip-coating, spray coating, vacuum filtration, electrophoretic deposition, and 3D printing are compared. The corresponding principles and advantages are summarized. Representative applications of clay-based multifunctional membranes in protection, separation, responsiveness, flexible electronics, and energy conversion are presented. The challenges and future perspectives of the claybased multifunctional membranes are discussed.

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“…[ 13,14 ] In recent decades, nanocomposites have attracted tremendous attentions because of their remarkable physical and mechanical properties, which are often achieved at low nanofillers' concentrations. Graphene (XGn), [ 15,16 ] carbon nanotubes (CNT), [ 17,18 ] and organoclay [ 19,20 ] are among the most attractive nanofillers for making polymer‐based nanocomposites. [ 21 ]…”

Section: Introductionmentioning

confidence: 99%

Morphology and mechanical properties of poly (acrylonitrile‐butadiene‐styrene)/multi‐walled carbon nanotubes nanocomposite specimens prepared by fused deposition modeling

et al. 2020

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In this work, poly(acrylonitrile‐butadiene‐styrene) (ABS) filaments containing 0, 1, 3, and 5 wt% multi‐walled carbon nanotubes (MWCNT) were prepared by extrusion. The filaments were then used to make the required specimens with a fused deposition modeling machine. The results obtained from the tensile measurements revealed that with the increase in the layer thickness, the tensile strength of the printed specimens decreased; however, the raster angle did not have any significant effect on the properties. The transmission electron microscope images showed that for the sample containing 3 wt% MWCNT, nanoparticles were reasonably dispersed throughout the matrix. The scanning electron microscope images illustrated that the size of the voids formed within the specimens was increased with increasing of the layer thickness from 0.05 to 0.2 mm. It was also found that the maximum properties could be obtained by using the layer thickness, raster angle and MWCNT concentration of 0.05 mm, 45/−45°, and 3 wt%, respectively. The results showed that both the tensile strength and elastic modulus of the filaments progressively increased with the increase of the nanofiller content in the range studied. It was found that for the constant layer thickness of 0.05 mm, all the specimens printed with single raster angles of 0, 45, and 90° showed higher tensile strength in comparison with their counterparts printed with two raster angles of 0/90° and 45/−45°.

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High-strength epoxy nanocomposites for 3D printing

Cited by 142 publications

References 40 publications

Direct ink writing advances in multi-material structures for a sustainable future

Direct ink writing advances in multi-material structures for a sustainable future

Strategic Design of Clay‐Based Multifunctional Materials: From Natural Minerals to Nanostructured Membranes

Morphology and mechanical properties of poly (acrylonitrile‐butadiene‐styrene)/multi‐walled carbon nanotubes nanocomposite specimens prepared by fused deposition modeling

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