Direct ink writing of geopolymer with high spatial resolution and tunable mechanical properties

Ma, Siqi; Fu, Shuai; Zhao, Shiyuan; He, Peigang; Ma, Guoru; Wang, Meirong; Jia, Dechang; Zhou, Yu

doi:10.1016/j.addma.2021.102202

Cited by 21 publications

(25 citation statements)

References 45 publications

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“…Meanwhile, the printing speed and the height of each layer were set as 3 600 mm/min and 580 μm, respectively. 35 In this research, a series of highresolution SiC w /geopolymer products with special structures and designs had been fabricated as shown in Fig- ure 2A. As shown in Figure 2B,C, one mesh architecture with pitch angle γ = 0 • is listed.…”

Section: D Printing Of Geopolymermentioning

confidence: 99%

“…The rod-like and honeycomb structure sample shown in Figure 2D-G are the macroscopic of the samples for the test. The width, height, wall thickness, and top surface area of the honeycomb sample used in the compression test were 30 mm, 10 mm, 1.5 mm, and 300 mm 2 , respectively, 35 and these two kinds of structures (rod-like and honeycomb structure) were all exhibit smooth surfaces and a distinct transition between the adjacent layers. Fiber distribution (i.e., the arrangement and spatial distribution of fibers in the matrix material) plays an (d-g) microscopic images of the 3D-printed mechanical samples important role in the overall mechanical properties of composites.…”

Section: D Printing Of Geopolymermentioning

confidence: 99%

“…The rod‐like and honeycomb structure sample shown in Figure 2D–G are the macroscopic of the samples for the test. The width, height, wall thickness, and top surface area of the honeycomb sample used in the compression test were 30 mm, 10 mm, 1.5 mm, and 300 mm 2 , respectively, 35 and these two kinds of structures (rod‐like and honeycomb structure) were all exhibit smooth surfaces and a distinct transition between the adjacent layers.…”

Section: Materials Synthesizing and Analysismentioning

confidence: 99%

“…The rheological behaviors of x SiC w /GP slurries were characterized by a DHR rheometer. To explore the viscoelastic recovery behavior of SiC w /GP ink for DIW, a three interval thixotropy test (3IT) was adopted (parameters selected for 3IT test have been listed in the previous work 35 ).…”

Section: Materials Synthesizing and Analysismentioning

confidence: 99%

“…In the printing process, the extrusion pressure, ranging from 30 to 60 psi, increased with ink viscosity. Meanwhile, the printing speed and the height of each layer were set as 3 600 mm/min and 580 μm, respectively 35 . In this research, a series of high‐resolution SiC w /geopolymer products with special structures and designs had been fabricated as shown in Figure 2A.…”

Section: Materials Synthesizing and Analysismentioning

confidence: 99%

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Preparation and mechanical performance of SiC_w/geopolymer composites through direct ink writing

Zhao

Zheng³

et al. 2022

J Am Ceram Soc

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Traditional geopolymer structures benefit from the durability, irradiation resistance, and environmental friendliness, but their brittleness limits their applications where repeated, impactive strains are imparted. This situation may be alleviated if complex structures with tunable geometry can be fabricated, for example, through 3D printing based on direct ink writing (DIW). In this research, SiC whisker/geopolymer (SiC w /GP) composites were fabricated by the DIW for the first time. The rheological behaviors of the SiC w /GP inks and the fracture behaviors of the printed samples were explored. The modified printing inks exhibited non-Newtonian fluid behavior (shear-thinning). Subsequently, a series of lightweight architected structures were fabricated, and they revealed how reinforcement and architecture of the printed structures could influence both the strength and toughness of the SiC w /GP composites.

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Section: D Printing Of Geopolymermentioning

confidence: 99%

Section: D Printing Of Geopolymermentioning

confidence: 99%

Section: Materials Synthesizing and Analysismentioning

confidence: 99%

Section: Materials Synthesizing and Analysismentioning

confidence: 99%

Section: Materials Synthesizing and Analysismentioning

confidence: 99%

See 3 more Smart Citations

Preparation and mechanical performance of SiC_w/geopolymer composites through direct ink writing

Zhao

Zheng³

et al. 2022

J Am Ceram Soc

Self Cite

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Revolutionizing Monolithic Catalysts: The Breakthroughs of Design Control through Computer‐Aided‐Manufacturing

Parra‐Marfil,

Pérez‐Cadenas,

Carrasco‐Marín

et al. 2024

Adv Materials Technologies

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Additive manufacturing (AM) presents a promising opportunity for the innovative design and production of structured catalytic materials. Given the critical role of catalysts in industrial catalytic processes, AM has the potential to contribute to the development of improved catalysts by reducing activation energy and enhancing selectivity. Conventional synthesis methods limit the choice of structural materials and composition for producing monoliths. Additionally, the deposition of catalytic compounds is also restricted by commonly applied techniques that may require prior coverage or treatments to improve adherence or do not achieve a homogenous coat. Moreover, production is limited to monoliths with straight and parallel channels. However, this format drives to laminar regime flow thus restricting the radial mass and heat transfer. Conversely, AM allows the production of a wider variety of compositions and more complex structures that have proven to rise their effectiveness by increasing reagents‐catalyst interaction, making catalytic processes more cost‐effective. Therefore, in this review an outline of the recent progress of AM methods in the development of monolithic catalysts is presented focusing on the requirements, advantages, and disadvantages of each technique, hence providing a practical overview of their novel opportunities to overcome current limitations in catalyst synthesis.

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Designing Double‐Layer Multimaterial Composite Patch Scaffold with Adhesion Resistance for Hernia Repair

Zhang

et al. 2022

Macromolecular Bioscience

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Hernia repair mesh is associated with a number of complications, including adhesions and limited mobility, due to insufficient mechanical strength and nonresorbability. Among them, visceral adhesions are one of the most serious complications of patch repair. In this study, a degradable patch with an antiadhesive layer is prepared for hernia repair by 3D printing and electrospinning techniques using polycaprolactone, polyvinyl alcohol, and soybean peptide (SP). The study into the physicochemical properties of the patch is found that it has adequate mechanical strength requirements (16 N cm −1 ) and large elongation at break, which are superior than commercial polypropylene patches. In vivo and in vitro experiments show that human umbilical vein endothelial cells proliferated well on composite patches, and showed excellent biocompatibility with the host and little adhesion through a rat abdominal wall defect model. In conclusion, the results of this study show that composite patch can effectively reduce the occurrence of adhesions, while the addition of SP in the patch further enhances its biocompatibility. It is believed that a regenerative biological patch with great potential in hernia repair provides a new strategy for the development of new biomimetic biodegradable patches.

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Direct ink writing of geopolymer with high spatial resolution and tunable mechanical properties

Cited by 21 publications

References 45 publications

Preparation and mechanical performance of SiC_w/geopolymer composites through direct ink writing

Preparation and mechanical performance of SiC_w/geopolymer composites through direct ink writing

Revolutionizing Monolithic Catalysts: The Breakthroughs of Design Control through Computer‐Aided‐Manufacturing

Designing Double‐Layer Multimaterial Composite Patch Scaffold with Adhesion Resistance for Hernia Repair

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Direct ink writing of geopolymer with high spatial resolution and tunable mechanical properties

Cited by 21 publications

References 45 publications

Preparation and mechanical performance of SiCw/geopolymer composites through direct ink writing

Preparation and mechanical performance of SiCw/geopolymer composites through direct ink writing

Revolutionizing Monolithic Catalysts: The Breakthroughs of Design Control through Computer‐Aided‐Manufacturing

Designing Double‐Layer Multimaterial Composite Patch Scaffold with Adhesion Resistance for Hernia Repair

Contact Info

Product

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About

Preparation and mechanical performance of SiC_w/geopolymer composites through direct ink writing

Preparation and mechanical performance of SiC_w/geopolymer composites through direct ink writing