Effect of poly(dimethylsiloxane) binder in a silica-based superhydrophobic coating on mechanical properties, surface roughness, and wettability

Sebastian, Divine; Yao, Chun-Wei

doi:10.1557/mrc.2020.59

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…Amongst these methods, sol-gel method is favored by researchers because of its mild reaction conditions and simple process. Silica sols were produced by ethyl orthosilicate catalyzed by ammonia and then modified by perfluorodecyltrimethoxysilane to produce superhydrophobic coatings [ 36 ]. Silica sols are produced via ethyl orthosilicate catalyzed by hydrochloric acid [ 37 ].…”

Section: Introductionmentioning

confidence: 99%

Heat Stability and Icing Delay on Superhydrophobic Coatings in Facile One Step

2022

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Superhydrophobic coatings are limited to poor durability and a tedious preparation process. In this work, an efficient, eco-friendly, and cost-effective sol-gel method is developed for preparing superhydrophobic surfaces using an all-in-one suspension composed of methyltrimethoxysilane (MTMS), nano silicon dioxide (SiO2) particles, and micron zinc oxide (ZnO) particles. Superhydrophobic coatings with a contact angle (CA) up to 153.9° and a sliding angle (SA) of about 3.0° are prepared on Q235 steel substrates using MTMS 5 mL, 0.8 g of nano SiO2, and 0.2 g of micron ZnO. The morphology of the superhydrophobic coating is characterized by scanning electron microscopy (SEM), and the surface is covered with a micro- and nano-scaled hierarchical rough structure. A series of tests are conducted, including long-term stability tests and thermostability tests. The CAs are all above 150°, and the SAs are below 6.3°, indicating the excellent static stability of the prepared superhydrophobic coatings. Moreover, the CA of the superhydrophobic coating remains above 152° after 120 h of UV exposure, and the time for a water droplet to freeze on the surface of the superhydrophobic coating is 18 times of the bare Q235 steel, indicating that the superhydrophobic coating exhibits good resistance to UV radiation and icing-delay properties.

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Section: Introductionmentioning

confidence: 99%

Heat Stability and Icing Delay on Superhydrophobic Coatings in Facile One Step

2022

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“…Keeping these two requirements in mind, superhydrophobic coatings can be fabricated using different methods, such as nanocomposite coatings [14][15][16][17], chemical vapor deposition [18], self-assembled monolayers [19], and template method [20]. Nanocomposite coatings are receiving a great deal of attention, especially due to the good tunability of the coating by varying the constituents within the nanocomposite coating solution [21]. Regarding the fabrication process, nanocomposite coatings facilitate the fulfillment of the two requirements for superhydrophobic coatings-surface roughness and low surface free energy in a single step.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior and Mechanical Properties of a Nanocomposite Superhydrophobic Coating

et al. 2021

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In this work, a mechanically durable anticorrosion superhydrophobic coating is developed using a nanocomposite coating solution composed of silica nanoparticles and epoxy resin. The nanocomposite coating developed was tested for its superhydrophobic behavior using goniometry; surface morphology using scanning electron microscopy and atomic force microscopy; elemental composition using energy dispersive X-ray spectroscopy; corrosion resistance using atomic force microscopy; and potentiodynamic polarization measurements. The nanocomposite coating possesses hierarchical micro/nanostructures, according to the scanning electron microscopy images, and the presence of such structures was further confirmed by the atomic force microscopy images. The developed nanocomposite coating was found to be highly superhydrophobic as well as corrosion resistant, according to the results from static contact angle measurement and potentiodynamic polarization measurement, respectively. The abrasion resistance and mechanical durability of the nanocomposite coating were studied by abrasion tests, and the mechanical properties such as reduced modulus and Berkovich hardness were evaluated with the aid of nanoindentation tests.

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Simultaneous mapping of nanoscale topography and surface potential for the study of localized corrosion in 2024-T3 aluminum alloy and corrosion resistance introduced by a superhydrophobic coating

Sebastian

Yao

2021

MRS Communications

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Effect of poly(dimethylsiloxane) binder in a silica-based superhydrophobic coating on mechanical properties, surface roughness, and wettability

Cited by 4 publications

References 26 publications

Heat Stability and Icing Delay on Superhydrophobic Coatings in Facile One Step

Heat Stability and Icing Delay on Superhydrophobic Coatings in Facile One Step

Corrosion Behavior and Mechanical Properties of a Nanocomposite Superhydrophobic Coating

Simultaneous mapping of nanoscale topography and surface potential for the study of localized corrosion in 2024-T3 aluminum alloy and corrosion resistance introduced by a superhydrophobic coating

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