Assessment of Icephobic Coatings—How Can We Monitor Performance Durability?

Rehfeld, Nadine; Speckmann, Björn; Schreiner, Claus; Stenzel, Volkmar

doi:10.3390/coatings11060614

Cited by 8 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The application and curing parameters were identical to those of the primer coating. The same conditions were applied to the third coating type, "PUR C25", which is a non-commercial 2-component formulation based on silanized polyisocyanate-curing acrylic resin, as described in [16]. The material was selected as a potential icephobic material and was applied on the primer coating.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Parameter Study for the Ice Adhesion Centrifuge Test

2022

Self Cite

View full text Add to dashboard Cite

In this study, we assessed the effects of ice types, test parameters, and surface properties on measurement data of the ice adhesion centrifuge test. This method is often used for the evaluation of low ice adhesion surfaces, although no test standard has been defined yet. The aim of this paper is to improve the understanding of the relevant test parameter and identify crucial criteria to be considered in harmonization and standardization efforts. Results clearly indicate that the ice type (static vs. impact ice) has the greatest impact on the test results, with static ice delivering higher values in a broader data span. This is beneficial for material developers as it eases the evaluation process, but it contradicts the technical efforts to design tests that are as close as possible to realistic technical environments. Additionally, the selected ice type has a significant impact on the relevance of the surface properties (roughness, wettability). Despite the complexity of interactions, a trend was observed that the roughness is the determining surface parameter for high impact velocity ice (95 m/s). In contrast, for tests with static ice, the wettability of the test surface is of higher relevance, leading to the risk of overestimating the icephobic performance of structured surfaces. The results of this paper contribute to the demanding future tasks of defining well-founded test standards and support the development of icephobic surfaces.

show abstract

Section: Methodsmentioning

confidence: 99%

“…For ice adhesion tests, a custom-made centrifuge with a modified rotor to place and fasten the prepared test samples was used as already described elsewhere [16]. Opposite the ice is a counterweight that can be adjusted, according to the ice mass, to reduce vibrations (see Figure 3).…”

Section: Methodsmentioning

confidence: 99%

Parameter Study for the Ice Adhesion Centrifuge Test

2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Application and curing parameters were identical to those of the primer coating. The same application method was used for the coating type "PUR C25", which is a noncommercial 2component formulation based on silanized polyisocyanate-curing acrylic resin as described in [33]. The total film thickness (incl.…”

Section: Test Sample Preparationmentioning

confidence: 99%

Round-Robin Study for Ice Adhesion Tests

Rehfeld,

Brassard,

Yamazaki

et al. 2024

Aerospace

Self Cite

View full text Add to dashboard Cite

Ice adhesion tests are widely used to assess the performance of potential icephobic surfaces and coatings. A great variety of test designs have been developed and used over the past decades due to the lack of formal standards for these types of tests. In many cases, the aim of the research was not only to determine ice adhesion values, but also to understand the key surface properties correlated to low ice adhesion surfaces. Data from different measurement techniques had low correspondence between the results: Values varied by orders of magnitude and showed different relative relationships to one another. This study sought to provide a broad comparison of ice adhesion testing approaches by conducting different ice adhesion tests with identical test surfaces. A total of 15 test facilities participated in this round-robin study, and the results of 13 partners are summarized in this paper. For the test series, ice types (impact and static) as well as test parameters were harmonized to minimize the deviations between the test setups. Our findings are presented in this paper, and the ice- and test-specific results are discussed. This study can improve our understanding of test results and support the standardization process for ice adhesion strength measurements.

show abstract

Fluorine-free approaches to impart photovoltaic systems with self-cleaning and anti-icing features

Alves,

Sousa

2024

J Coat Technol Res

View full text Add to dashboard Cite

Dust deposition on photovoltaic systems has a significant impact on the transmittance, temperature, and roughness, causing reductions in their power generation efficiency and lifetime. A promising approach to deal with this problem relies on the use of superhydrophobic coatings to impart the surfaces of these devices with self-cleaning properties. In this work, materials with different chemistry and morphology were added to an acrylic dispersion to create hydrophobic surfaces using a non-fluorinated coating simple strategy for glass substrates. Results showed that materials with more complex morphology, namely the spherical shape of silica nanoparticles, and the needle-like and prism-like structures of zinc oxide, imparted the glass with higher water contact angles. All coatings prepared displayed self-cleaning features and good adhesion to the glass substrate. Coatings comprising silica nanoparticles, zirconia and alumina modified with HDMTS were the best ones to prevent ice formation. In terms of chemical stability, all the coatings resisted acidic conditions close to acid rain pH and solvents with mild polarity. Therefore, the coatings proposed hold great potential to expel dust contaminants and prevent ice formation of photovoltaic devices, increasing their lifetime and power generation efficiency.

show abstract

Assessment of Icephobic Coatings—How Can We Monitor Performance Durability?

Cited by 8 publications

References 31 publications

Parameter Study for the Ice Adhesion Centrifuge Test

Parameter Study for the Ice Adhesion Centrifuge Test

Round-Robin Study for Ice Adhesion Tests

Fluorine-free approaches to impart photovoltaic systems with self-cleaning and anti-icing features

Contact Info

Product

Resources

About