Fabrication of an Anisotropic Superhydrophobic Polymer Surface Using Compression Molding and Dip Coating

Lee, Kyong-Min; Ngo, Chi-Vinh; Jeong, Jin-Hoon; Jeon, Eun‐chae; Je, Tae-Jin; Chun, Doo‐Man

doi:10.3390/coatings7110194

Cited by 18 publications

(17 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polylactic acid (PLA) is widely used in agriculture, forestry, medical, and food industries, as well as packaging and other fields. Unique functions such as cleaning, anti-icing, anti-corrosion, water-reducing oil separation, liquid transport, and water collection [ 1 , 2 , 3 , 4 , 5 , 6 ] are needed in these fields. In daily life, the surfaces of automobiles, home appliances, and packaging with anti-fouling properties, as well as kitchen appliances with anti-fouling properties, are expected.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Hydrophobic Surface on PLA and ABS by Fused Deposition Modeling

Yang

et al. 2020

Polymers

View full text Add to dashboard Cite

In the fields of agriculture, medical treatment, food, and packaging, polymers are required to have the characteristics of self-cleaning, anti-icing, and anti-corrosion. The traditional preparation method of hydrophobic coatings is costly and the process is complex, which has special requirements on the surface of the part. In this study, fused deposition modeling (FDM) 3D printing technology with design and processing flexibility was applied to the preparation of hydrophobic coatings on polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS) parts, and the relationship between the printing process parameters and the surface roughness and wettability of the printed test parts was discussed. The experimental results show that the layer thickness and filling method have a significant effect on the surface roughness of the 3D-printed parts, while the printing speed has no effect on the surface roughness. The orthogonal experiment analysis method was used to perform the wettability experiment analysis, and the optimal preparation process parameters were found to be a layer thickness of 0.25 mm, the Grid filling method, and a printing speed of 150 mm/s.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation of Hydrophobic Surface on PLA and ABS by Fused Deposition Modeling

Yang

et al. 2020

Polymers

View full text Add to dashboard Cite

show abstract

“…Furthermore, with increasing η, ψ increases due to Maxwell stress induced enhanced curvature of the liquid-air interface underneath the droplet at A-A and C-C ; however, simultaneously φ decreases at C-C due to enhanced wetting with increasing η. The variation in φ between A-A and C-C for a given value of η is due to the anisotropy in the substrate, which makes the apparent contact angle dependent on the location of the macroscopic droplet contact line on the substrate 34 . The overall η-dependence of ψ and φ makes the orientation of the capillary forces acting on the outermost lamella at the pinned droplet contact lines function of η, which at least theoretically makes the consequential deformation of the lamella dependent on η.…”

Section: Resultsmentioning

confidence: 99%

Behaviour of flexible superhydrophobic striped surfaces during (electro-)wetting of a sessile drop

2019

View full text Add to dashboard Cite

We study here the microscopic deformations of elastic lamellae constituting a superhydrophobic substrate under different wetting conditions of a sessile droplet using electrowetting. The deformation profiles of the lamellae are experimentally evaluated using confocal microscopy. These experimental results are then explained using a variational principle formalism within the framework of linear elasticity. We show that the local deformation profile of a lamella is mainly controlled by the net horizontal component of the capillary forces acting on its top due to the pinned droplet contact line. We also discuss the indirect role of electrowetting in dictating the deformation characteristics of the elastic lamellae. One important conclusion is that the small deflection assumption, which is frequently used in the literature, fails to provide a quantitative description of the experimental results; a full solution of the non-linear governing equation is necessary to describe the experimentally obtained deflection profiles.

show abstract

“…In some cases, however, the replicated hydrophobic surfaces were used to fabricate super-hydrophobic surfaces in a subsequent step, such as applying a nanocomposite coating, 56 using plasma treatment, 58 or depositing a self-assembled monolayer. 7,59 These various investigations, although falling beyond the scope of the present review, have contributed to our understanding of the methods for obtaining superhydrophobic surfaces via replication-based techniques.…”

Section: Introductionmentioning

confidence: 92%

Advances in the Fabrication of Superhydrophobic Polymeric Surfaces by Polymer Molding Processes

Maghsoudi

Vazirinasab

Momen

et al. 2020

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Superhydrophobic materials are found in a suite of scientific and industrial applications, and given their broad potential use, there is great interest in facilitating their mass production. Although numerous methods have been used to produce superhydrophobic materials, only a few are capable of fabricating superhydrophobic surfaces and materials at an industrial scale. Techniques such as injection molding, compression molding, hot embossing, and polymer casting play an important role in the mass production of superhydrophobic polymer surfaces. This technical literature review summarizes recent advances in the polymer molding processes used to fabricate superhydrophobic materials. Here, we review replication methods and the materials that can be used by these approaches. We also evaluate the advantages and disadvantages of these methods and discuss the challenges of molding and demolding single-level structures (e.g., microstructures and nanostructures) and multilevel structures (e.g., micro-nanostructures, micromicrostructures, and micromicro-nanostructures), with a focus on superhydrophobic surfaces. We evaluate the relationship between structure geometry and the wettability of a surface, highlighting the effect of structure type and size in achieving the desired wettability. We then offer perspectives, discuss current limitations, and suggest required studies. This review aims to assist researchers in understanding the fundamentals related to the fabrication of patterned surfaces via polymer molding processes and offer avenues for the successful creation of superhydrophobic polymeric surfaces.

show abstract

Fabrication of an Anisotropic Superhydrophobic Polymer Surface Using Compression Molding and Dip Coating

Cited by 18 publications

References 44 publications

Preparation of Hydrophobic Surface on PLA and ABS by Fused Deposition Modeling

Preparation of Hydrophobic Surface on PLA and ABS by Fused Deposition Modeling

Behaviour of flexible superhydrophobic striped surfaces during (electro-)wetting of a sessile drop

Advances in the Fabrication of Superhydrophobic Polymeric Surfaces by Polymer Molding Processes

Contact Info

Product

Resources

About