Super-hydrophobic zinc oxide/silicone rubber nanocomposite surfaces

Mendoza, Ana Isabel; Moriana, Rosana; Hillborg, Henrik; Strömberg, Emma

doi:10.1016/j.surfin.2018.12.008

Cited by 47 publications

(20 citation statements)

References 61 publications

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“…The superhydrophobicity can be obtained by the use of hydrogels, nanocomposites and other nanostructures [15]. Among these additives, zinc oxide nanoparticles (ZnO NPs) are of particular interest, due to their low cost, biocompatibility and biodegradability for environmental applications and to their hexagonal prism shape, which allows an increase in the surface roughness [16,17]. Therefore, this nanomaterial can be beneficial to obtained multifunctional materials due to its numerous properties, such as water resistance, antibacterial effect, UV blocking, flame retardancy, corrosion inhibitor and electrical conductivity [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic cotton fabrics based on ZnO nanoparticles functionalization

et al. 2019

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In the present work, 100% cotton knitted fabrics were functionalized with ZnO nanoparticles, in order to enhance the hydrophobic properties of the fibers surface. The incorporation methods of ZnO NPs and different types of cotton samples (including polymer coated, and uncoated with and without a nonionic pretreatment) were evaluated, in order to understand the influence in the hydrophobicity values. Cotton fabrics with and without NPs were characterized by ground-state diffuse reflectance, field emission scanning electron microscopy and energy-dispersive spectroscopy, attenuated total reflectance-Fourier transform infrared spectroscopy and water contact angle (WCA). The best results were obtained when the polymer-coated fabric was functionalized using a precursor concentration of 0.2 M, exhibiting superhydrophobic behavior with static WACs of more than 150°. Although pretreated and untreated ZnO-functionalized cotton fabrics had a slightly lower wettability, they showed interesting results, with improvements in WCA from 116° to 143°. In summary, this work demonstrates that the ZnO NPs have a huge potential to be used as surface finishings for the development of easy cleaning fibrous structures.

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Section: Introductionmentioning

confidence: 99%

Superhydrophobic cotton fabrics based on ZnO nanoparticles functionalization

et al. 2019

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“…ZnO is a promising coating material for superhydrophobic surfaces for various applications [ 58 , 59 , 60 , 61 ]. With an estimated body demand for zinc of 15 mg per day, elemental zinc plays an important role in many biological functions [ 62 ].…”

Section: Materials For Superhydrophobicitymentioning

confidence: 99%

Recent Developments in Blood-Compatible Superhydrophobic Surfaces

Wang

Paul

Stein³

et al. 2022

Polymers

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Superhydrophobic surfaces, as indicated in the name, are highly hydrophobic and readily repel water. With contact angles greater than 150° and sliding angles less than 10°, water droplets flow easily and hardly wet these surfaces. Superhydrophobic materials and coatings have been drawing increasing attention in medical fields, especially on account of their promising applications in blood-contacting devices. Superhydrophobicity controls the interactions of cells with the surfaces and facilitates the flowing of blood or plasma without damaging blood cells. The antibiofouling effect of superhydrophobic surfaces resists adhesion of organic substances, including blood components and microorganisms. These attributes are critical to medical applications such as filter membranes, prosthetic heart valves, extracorporeal circuit tubing, and indwelling catheters. Researchers have developed various methods to fabricate blood-compatible or biocompatible superhydrophobic surfaces using different materials. In addition to being hydrophobic, these surfaces can also be antihemolytic, antithrombotic, antibacterial, and antibiofouling, making them ideal for clinical applications. In this review, the authors summarize recent developments of blood-compatible superhydrophobic surfaces, with a focus on methods and materials. The expectation of this review is that it will support the biomedical research field by providing current trends as well as future directions.

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“…This special structure gives it the characteristics of organic and inorganic functions [4][5][6]. Due to its unique structure and excellent performance, RTV silicone rubber is widely used in hydrophobic materials, insulating materials, aerospace, and other fields [7][8][9]. However, the interaction force between silicone rubber molecules is weak, and there are defects such as poor mechanical properties [10].…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of room-temperature-vulcanized silicone rubber using modified dopamine as a crosslinking agent

Wang¹,

Zhou²,

Ma³

et al. 2022

Mater. Res. Express

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This paper investigates the modification of dopamine (IDA) and uses it as a crosslinking agent to enhance the mechanical strength and hydrophobicity of room-temperature-vulcanized (RTV) silicone rubber. IDA was successfully synthesized with dopamine and 3-isocyanatopropyltriethoxysilane. The structure of IDA was verified by Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy. IDA was introduced into the hydroxyl-terminated polydimethylsiloxane (PDMS) system to prepare RTV silicone rubber, and dibutyltin dilaurate (DBTDL) was used as the catalyst. A combination of the scanning electron microscope, thermal gravimetric analysis, universal testing machine, and contact angle was used to analyze the morphology and properties of RTV silicone rubber. The results demonstrated that the addition of IDA significantly enhanced the thermal stability and mechanical strength of RTV silicone rubber. The mechanical strength of the novel RTV silicone rubber increased by 221%. Moreover, the IDA modified RTV silicone rubber had better hydrophobicity as compared to the PDMS polymer prepared with the traditional crosslinking agent.

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Super-hydrophobic zinc oxide/silicone rubber nanocomposite surfaces

Cited by 47 publications

References 61 publications

Superhydrophobic cotton fabrics based on ZnO nanoparticles functionalization

Superhydrophobic cotton fabrics based on ZnO nanoparticles functionalization

Recent Developments in Blood-Compatible Superhydrophobic Surfaces

Preparation and properties of room-temperature-vulcanized silicone rubber using modified dopamine as a crosslinking agent

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