Anti-icing Performance of a Superhydrophobic PDMS/Modified Nano-silica Hybrid Coating for Insulators

Li, Jian; Zhao, Yushun; Hu, Jianlin; Shu, Lichun; Shi, Xianming

doi:10.1163/016942411x574826

Cited by 95 publications

(32 citation statements)

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“…Commercially available silicone oils are typically used as protective coatings for industrial substrates, thanks to their chemical and physical properties as well as their ability to form thin films. They can be easily modified to form hybrid, nano-composite materials suitable for use as anticorrosives [3], ice-retarding [4], self-cleaning/antireflective [5], and, flame/heat/fire retardants [6], or in enzyme immobilization to obtain biocatalytic paints with antifouling/antibiofouling properties [7].…”

Section: Introductionmentioning

confidence: 99%

Structural and Thermoanalytical Characterization of 3D Porous PDMS Foam Materials: The Effect of Impurities Derived from a Sugar Templating Process

et al. 2018

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Polydimethylsiloxane (PDMS) polymers are extensively used in a wide range of research and industrial fields, due to their highly versatile chemical, physical, and biological properties. Besides the different two-dimensional PDMS formulations available, three-dimensional PDMS foams have attracted increased attention. However, as-prepared PDMS foams contain residual unreacted low molecular weight species that need to be removed in order to obtain a standard and chemically stable material for use as a scaffold for different decorating agents. We propose a cleaning procedure for PDMS foams obtained using a sugar templating process, based on the use of two different solvents (hexane and ethanol) as cleaning agents. Thermogravimetry coupled with Fourier Transform Infrared Spectroscopy (TG-FTIR) for the analysis of the evolved gasses was used to characterize the thermal stability and decomposition pathway of the PDMS foams, before and after the cleaning procedure. The results were compared with those obtained on non-porous PDMS bulk as a reference. Micro-CT microtomography and scanning electron microscopy (SEM) analyses were employed to study the morphology of the PDMS foam. The thermogravimetric analysis (TGA) revealed a different thermal behaviour and crosslinking pathway between bulk PDMS and porous PDMS foam, which was also influenced by the washing process. This information was not apparent from spectroscopic or morphological studies and it would be very useful for planning the use of such complex and very reactive systems.

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Section: Introductionmentioning

confidence: 99%

Structural and Thermoanalytical Characterization of 3D Porous PDMS Foam Materials: The Effect of Impurities Derived from a Sugar Templating Process

et al. 2018

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“…A coating manufactured using a mixture of tetraethyl orthosilicate and n octyltriethoxysilane with the addition of silica nanoparticles (functionalized with octyl triethoxysilane) yielded a contact angle 153° [55]. Poly dimethylsiloxane (PDMS) coatings with the incorporation of nano silica were developed to reduce ice accumulation on power line insulations [56]. Coatings were deposited using a sprayed gel process, with the resulting coating morphology shown in Fig.…”

Section: Polysiloxane Based Viscoelastic Coatingsmentioning

confidence: 99%

“…PDMS modified nano-silica hybrid coating that exhibits superior ice accumulation resistance. Reproduced from Ref [56]. with permission from Taylor & Francis.…”

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confidence: 99%

A survey of icephobic coatings and their potential use in a hybrid coating/active ice protection system for aerospace applications

Huang

Tepylo

Pommier-Budinger

et al. 2019

Progress in Aerospace Sciences

169

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Icephobic coatings for aircraft and other surfaces subjected to ice accretion have generated great interest in the past two decades, due to the advancement of nanomaterials, coating fabrication methods, biomimetics, and a more in-depth understanding of ice nucleation and ice adhesion. Icephobic coatings have demonstrated the ability to repel water droplets, delay ice nucleation and significantly reduce ice adhesion. Despite these ongoing research activities and promising results, the findings reported hereafter suggest that coatings alone cannot be used for aircraft anti-icing and de-icing operations; rather, they should be considered as a complementary option to either thermal or mechanical ice protection methods, for reducing power consumption and the ecological footprint of these active systems and for expediting ground de-icing operations. This paper will first review the state-of-the-art of icephobic coatings for various applications, including their performance and existing deficiencies. The second part of this paper focuses on aerospace anti-icing and de-icing requirements and the need for hybrid systems to provide a complete ice protection solution. Lastly, several urgent issues facing further development in the field are discussed.

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“…Previous studies [ 3 , 6 , 7 , 8 ] have suggested that the freezing start time is delayed due to the smaller solid/liquid contact area, decreasing the heat transfer from the water droplet to the cooling surface. In this context, PDMS polymer, thanks to its low surface energy, seems to turn out to be a good candidate for preparing a hydrophobic surface for anti-icing applications [ 4 , 9 ]. Together with this passive strategy, electro-thermal de-icing methods, at lower power, can be alternative leading technologies to the above-mentioned solution.…”

Section: Introductionmentioning

confidence: 99%

Low-Voltage Icing Protection Film for Automotive and Aeronautical Industries

et al. 2020

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High-performance heater films are here proposed. They manifest great applicative potentiality in the de-icing technology of aircraft and motor vehicles. The films are suitable to be integrated into composite structures for the de/anti-icing function, which can be activated if the need arises. The heating is based on the joule effect of the current flowing through the electrically conductive films. Voltage and current parameters have been set based on the generators’ capacities on-board an aircraft and a car, as well as on the energy consumption during the operating conditions and the autonomy in the time. Green processes have been employed through all preparative steps of the films, which are composed of expanded graphite (60% wt/wt) and polyvinyl alcohol (PVA) (40% wt/wt). The results reveal a very significant influence of the aspect ratio of the filler on the heating and de-icing performance and suggest how to enhance the de-icing efficiency saving energy and adapting the current on-board aircraft/car generators for de-icing operations.

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Anti-icing Performance of a Superhydrophobic PDMS/Modified Nano-silica Hybrid Coating for Insulators

Cited by 95 publications

References 0 publications

Structural and Thermoanalytical Characterization of 3D Porous PDMS Foam Materials: The Effect of Impurities Derived from a Sugar Templating Process

Structural and Thermoanalytical Characterization of 3D Porous PDMS Foam Materials: The Effect of Impurities Derived from a Sugar Templating Process

A survey of icephobic coatings and their potential use in a hybrid coating/active ice protection system for aerospace applications

Low-Voltage Icing Protection Film for Automotive and Aeronautical Industries

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