On the surface performance of superhydrophobic silicone rubber specimens fabricated by direct replica method

Żyłka, P.

doi:10.1109/tdei.2014.6832264

Cited by 23 publications

(11 citation statements)

References 17 publications

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“…Use of templates or direct replication has been widely used for making micro-nanostructures on the surface of polymeric materials [14,15]. A variety of materials can be used to fabricate such templates or inserts: nickel, steel, BMG (bulk metallic glass) and aluminum [12].…”

Section: Introductionmentioning

confidence: 99%

“…Most studies involving the fabrication of superhydrophobic polymeric surfaces have used thermoplastics as the matrix. Some studies have also used poly(dimethylsiloxane) (PDMS) [55,56] and LSR [15,57] for producing structured superhydrophobic surfaces. However, few studies have employed HTV rubber materials to create textured superhydrophobic surfaces [4], and thus there is a need for further investigation using this material.…”

Section: Introductionmentioning

confidence: 99%

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Direct replication of micro-nanostructures in the fabrication of superhydrophobic silicone rubber surfaces by compression molding

Maghsoudi

Momen

Jafari

et al. 2018

Applied Surface Science

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We describe a simple method for fabricating superhydrophobic high temperature vulcanized (HTV) silicone rubber surfaces by direct replication using a compression molding system. The resulting rubber samples possessed micro-nanostructures on the surface. This micro-and nanoscale roughness produced a water contact angle of >160º and a contact angle hysteresis of <3º. The roughness patterns on chemically etched aluminum surfaces, which served as templates, were successfully replicated on the rubber surfaces. An antistiction coating applied to the template surface ensured that the rubber was completely removed during demolding and that the replicated micro-nanostructures on the silicone surface were preserved. Surface roughness of the aluminum templates was optimized at HCl concentrations of 15 wt.%, with a lower roughness value observed at acid concentrations above and below this value. The developed HTV silicone rubber surfaces also demonstrated a freezing delay and a self-cleaning capacity.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Direct replication of micro-nanostructures in the fabrication of superhydrophobic silicone rubber surfaces by compression molding

Maghsoudi

Momen

Jafari

et al. 2018

Applied Surface Science

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“…One has to be careful when using plasma etching, because it can also damage the surface and deteriorate the hydrophobicity as demonstrated by Zylka [77]. He prepared samples from silicone rubber with surface moulded by an acrylic paint template and left them exposed to the outside weather conditions for 45 days.…”

Section: Plasma Etchingmentioning

confidence: 99%

Recent Advances in the Methods for Designing Superhydrophobic Surfaces

Puliyalil¹,

Filipič²,

Cvelbar³

2015

Surface Energy

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The investigations of superhydrophobicity and self-cleaning surfaces have been given a lot of attention in the last few decades. The surfaces having water contact angle larger than ° are termed as hydrophobic surfaces and those which exhibit contact angle higher than ° are said to be superhydrophobic. Such surfaces were first observed in nature in various plants and animals, for example, lotus leaf-like structures. Water repellence of various materials have shown great influences on various applications such as self-cleaning, anti-ageing, water-oil separation, water corrosion in electrical industry, water proof textiles, controlled transportation of fluids, etc. Generally, surface micro/nanostructuring combined with low surface energy of materials leads to extreme anti-wetting properties. The hundreds of research articles and more than patents on the subject of nature mimicking self-cleaning surfaces prove the potential of this topic.

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“…Production of indirect mould by using a prototype can be described as rapid prototyping (RP). The prototype can be used as a positive mould to obtain the negative mould (Unkovskiy et al , 2019; Jindal et al , 2016; Zylka, 2014).…”

Section: Introductionmentioning

confidence: 99%

Mechanical meta-material-based polymer skin graft production by rapid prototyping and replica method

Attar

Aydin

Arabacı

et al. 2020

RPJ

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Purpose The purpose of this paper is the production of mechanical meta-material samples by rapid prototyping (RP) and replica technique for patient-specific skin graft or cranial implant applications in tissue engineering. Design/methodology/approach Positive moulds (patterns) were produced by stereolithography-based RP. Impression moulding method was used for the production of silicone products (skin grafts). Alginate was used as a moulding material (negative mould). Room temperature vulcanising silicone was poured into the cavity of alginate mould and then products were produced. TiO2 powder and carbon fibres were used as reinforcement. Meta-material structured polyurethane reinforced silicone composites were also produced. Liquid components (diisocyanate and polyol) were poured into the mould and then polyurethane was produced. Then, polyurethane was immersed in the liquid silicone. Findings It is found that non-destructive ultrasonic test is a fast and reliable method. Meta-material-based composites show dome-shaped tensile/synclastic surface properties which are important for the skin graft and cranial implants. Increasing the amounts of cross-linking agent and TiO2 particles increased the hardness and elastic modulus. Carbon fibre addition enhanced the elastic modulus. Originality/value Although there are studies on the meta-materials, there is limited study on the RP of the meta-materials for patient-specific implants (skin grafts). Auxetic surface shows perfect fit to curved surface of the skull. Although there are studies on the silicone and polyurethane composites, there is limited study on the characterisation of mechanical properties by ultrasonic tests and strain gauge analysis.

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On the surface performance of superhydrophobic silicone rubber specimens fabricated by direct replica method

Cited by 23 publications

References 17 publications

Direct replication of micro-nanostructures in the fabrication of superhydrophobic silicone rubber surfaces by compression molding

Direct replication of micro-nanostructures in the fabrication of superhydrophobic silicone rubber surfaces by compression molding

Recent Advances in the Methods for Designing Superhydrophobic Surfaces

Mechanical meta-material-based polymer skin graft production by rapid prototyping and replica method

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