Realizing surface amphiphobicity using 3D printing techniques: A critical move towards manufacturing low-cost reentrant geometries

Shams, Hamza; Basit, Kanza; Khan, Muhammad Atif; Saleem, Sajid; Mansoor, Asif

doi:10.1016/j.addma.2020.101777

Cited by 13 publications

(13 citation statements)

References 182 publications

(181 reference statements)

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“…The concept of using reentrant geometries for resisting penetration and adhesion of liquids on the surface without the need of a repellent coating is well-established [47][48][49][50][51][52][53]. However, fabrication of reentrant geometries pose a challenge in fabrication of complex geometry which facilitates formation of air entrapment sites especially with the use of 3D printing processes [37]. Moreover, until recently, FDM has not been reported as a favoured choice for creation of reentrant geometries due to the limitation in obtaining a reasonably small surface area for air entrapment [37,38].…”

Section: Iterative Surface Designmentioning

confidence: 99%

“…In a move to explore the potential of low-resolution 3D printing techniques, we demonstrated earlier how processes like Fused Deposition Modelling (FDM) can be suitably used to alter surface wettability characteristics without the need of a post-fabrication treatment [37]. This is possible due to the unique ladder (staircase) geometry formed due to layer-by-layer deposition of FDM process which results in a unique reentrant geometry where air-entrapment takes place between the layers [38].…”

Section: Introductionmentioning

confidence: 99%

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Scalable wear resistant 3D printed slippery liquid infused porous surfaces (SLIPS)

Shams

Basit

Khan

et al. 2021

Additive Manufacturing

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Section: Iterative Surface Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Scalable wear resistant 3D printed slippery liquid infused porous surfaces (SLIPS)

Shams

Basit

Khan

et al. 2021

Additive Manufacturing

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“…In fields such as electronic-equipment manufacturing, biotechnology, and medicine, miniaturization and large-scale integration of systems are advancing, and process technology is being used to upgrade the functions of materials, substrates, and microdevices [ 1 , 2 , 3 , 4 , 5 , 6 ]. This development includes the demand for various structures with complex shapes, such as three-dimensional structures for realizing effective microregional chemical reactions, mixing, and analyses in various fields, including biological microelectromechanical systems (bioMEMSs) and micro total analysis systems (µTASs) [ 7 , 8 , 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Three-Dimensionally Deformable Metal Structures Using Precision Electroforming

et al. 2022

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It is difficult to fabricate three-dimensional structures using semiconductor-process technology, because it is based on two-dimensional layered structure fabrication and the etching of thin films. In this study, we fabricated metal structures that can be dynamically deformed from two-dimensional to three-dimensional shapes by combining patterning using photolithography with electroforming technology. First, a resist structure was formed on a Cu substrate. Then, using a Ni sulfamate electroforming bath, a Ni structure was formed by electroforming the fabricated resist structure. Finally, the resist structure was removed to release the Ni structure fabricated on the substrate, and electroforming was used to Au-plate the entire surface. Scanning-electron microscopy revealed that the structure presented a high aspect ratio (thickness/resist width = 3.5), and metal structures could be fabricated without defects across the entire surface, including a high aspect ratio. The metallic structures had an average film thickness of 12.9 µm with σ = 0.49 µm, hardness of 600 HV, and slit width of 7.9 µm with σ = 0.25 µm. This microfabrication enables the fabrication of metal structures that deform dynamically in response to hydrodynamic forces in liquid and can be applied to fields such as environmental science, agriculture, and medicine.

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“…Identifying the key structural features in textile fabric self-cleaning surfaces is essential for improving the liquid-resistant/repellent surface properties of the fabric. Critical microscopic features such as surface roughness, porosity, and wettability of a textile fabric are the primary influences on self-cleaning properties at the surface [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ]. However, there is no record of exploration of the potential for introducing features of self-cleaning by controlling fabrication parameters at the microscopic level.…”

Section: Introductionmentioning

confidence: 99%

Influence of Printing Parameters on Self-Cleaning Properties of 3D Printed Polymeric Fabrics

Atwah

Almutairi

et al. 2022

Polymers

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The processes for making self-cleaning textile fabrics have been extensively discussed in the literature. However, the exploration of the potential for self-cleaning by controlling the fabrication parameters of the fabric at the microscopic level has not been addressed. The current evolution in 3D printing technology provides an opportunity to control parameters during fabric manufacturing and generate self-cleaning features at the woven structural level. Fabrication of 3D printed textile fabrics using the low-cost fused filament fabrication (FFF) technique has been achieved. Printing parameters such as orientation angle, layer height, and extruder width were used to control self-cleaning microscopic features in the printed fabrics. Self-cleaning features such as surface roughness, wettability contact angle, and porosity were analyzed for different values of printing parameters. The combination of three printing parameters was adjusted to provide the best self-cleaning textile fabric surface: layer height (LH) (0.15, 0.13, 0.10 mm) and extruder width (EW) (0.5, 0.4, 0.3 mm) along with two different angular printing orientations (O) (45° and 90°). Three different thermoplastic flexible filaments printing materials were used: thermoplastic polyurethane (TPU 98A), thermoplastic elastomers (TPE felaflex), and thermoplastic co-polyester (TPC flex45). Self-cleaning properties were quantified using a pre-set defined criterion. The optimization of printing parameters was modeled to achieve the best self-cleaning features for the printed specimens.

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Realizing surface amphiphobicity using 3D printing techniques: A critical move towards manufacturing low-cost reentrant geometries

Cited by 13 publications

References 182 publications

Scalable wear resistant 3D printed slippery liquid infused porous surfaces (SLIPS)

Scalable wear resistant 3D printed slippery liquid infused porous surfaces (SLIPS)

Fabrication of Three-Dimensionally Deformable Metal Structures Using Precision Electroforming

Influence of Printing Parameters on Self-Cleaning Properties of 3D Printed Polymeric Fabrics

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