Preparation of SiO₂ resin coating with superhydrophobic wettability and anti-icing behavior analysis

Abstract

Among different types of anti-icing coatings, superhydrophobic surfaces have attracted extensive attention due to their excellent water repellency and low thermal conductivity.

Preparation of superhydrophobic asymmetric vitrimer coating with high porosity and the key role of hierarchical pocket structure on long freeze delay time and high durability

“…First of all, BVSPs possessed a thermal conductivity (0.094 W/m*K), which is lower than traditional antiicing coating (0.2-3 W/m*K). 35,36 Second, it was found for BVSPs, the long DT corresponded to the low thermal conductivity, also reflecting the effect of λ on DT.…”

Study on PTFE Superhydrophobic Coating Modified by IC@dMSNs and its Enhanced Antibacterial Effect

“…In this study, the drug imipenem/cilastatin sodium (IC) with strong anti-negative bacterial ability was loaded into the PTFE-SiO 2 catheter to improve its anti-negative bacterial performance (29,30). Due to the presence of only one layer of dendritic SiO 2 nanospheres on the catheter, the total number of such dendritic SiO 2 nanospheres is limited, which inevitably leads to a limited total drug loading (31,32). Therefore, when considering drug loading, the antibiotic vancomycin could improve the anti-positive bacterial activity, but that could reduce the loading amount of Tylenone (33,34).…”

Formation of Highly Robust Superhydrophobic Nanocomposite Coatings via Dual Spraying Technique

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Nature has long been a powerful and great source of afflatus for researchers to design, construct, and fabricate large amounts of bio-inspired materials with captivating functions. [1] For instance, lotus-inspired multistructural superhydrophobic materials, which manifest a water contact angle larger than 150°(WCA>150°) and a sliding angle less than 10°(WSA<10°), are considered as potential candidates in the applications of self-cleaning, [2,3] drag-reduction, [4][5][6] oil-water-separation, [7,8] anticorrosion, [9][10][11] and antifrogging/anti-icing [12][13][14] due to the capability of extremely wonderful water repellency. Lowering surface energy and improving surface roughness are two effectual strategies to prepare a superhydrophobic surface, which can be achieved by controlling the chemical composition and constructing micro-nano architectures on the surface.

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“…[19,20] As a common failing of superhydrophobic surfaces, poor mechanical durability caused by consumable chemicals and fragile textures is a main engineering challenge that needs to be solved desiderately. [13] Effective strategies in improving the robustness of superhydrophobicity have been explored worldwide, including but not limited to, constructing rough microstructures to protect nanostructures, [21,22] and introducing self-similar structures to keep or self-healing components to recover surface characteristics. For example, Deng et al decoupled durability and wettability by creating rough and continuous frames to protect nanoscale constructions, [21] and Zimmermann et al fabricated robust superhydrophobic textiles that bore the abrasion force by introducing sound fibers.…”