Recent progress in the mechanisms, preparations and applications of polymeric antifogging coatings

Gong, Xiaodan; Yu, Haojie; Wang, Li; Liu, Xiaowei; Ren, Shuning; Huang, Yunyun; Huang, Zhongwei

doi:10.1016/j.cis.2022.102794

Cited by 38 publications

(16 citation statements)

References 161 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Notably, there are no observable characteristic peaks associated with aldehyde groups (2820–2720 and 1735–1715 cm –1 ) in these spectra. , Additionally, the stretching vibration of the amide bond is indicated by the peak at 1633 cm –1 , which resulted from the reaction of carboxyl and amino groups to form CDs. − The spectra clearly indicate the presence of peaks at about 1400 cm –1 , which correspond to the skeletal stretching vibration of the CD aromatic structure. Moreover, the characteristic peak of carboxyl groups appearing at 914 cm –1 is attributed to the nonplane rocking vibration caused by two associated hydroxyl groups. , The inset spectra indicate that the increase of PVA concentration results in a corresponding augmentation of hydroxyl groups, which would enhance the antifogging performance attributed to its hygroscopic properties. − …”

Section: Resultsmentioning

confidence: 99%

Fabrication of Robust Carbon Dots Containing Coatings with UV-Shielding, Light Conversion, and Antifogging Multiple Functions

Gu,

Ma,

2024

Langmuir

View full text Add to dashboard Cite

Although a wide variety of single-function coatings have been successfully developed, the integration of multiple functions onto a single coating has remained an immense challenge in the field. Here, we report a simple room-temperature fabrication of robust coatings with UV-shielding, light conversion, and antifogging functionalities. The addition of glutaraldehyde (GA) molecular cross-linker and carbon dot (CD) nanocross-linker with light conversion function to poly(vinyl alcohol) (PVA) resulted in the formation of robust spatial structures of coatings. The fluorescence intensity tests demonstrated that the coatings had an excellent ability to absorb and convert ultraviolet light into blueviolet light. Both cold-warm and hot-vapor tests showed that the coatings had excellent antifogging performance. To our surprise, no creases were observed after coatings were immersed in water for 1 month, indicating that these are much stronger than those reported so far. The 8H pencil hardness and wear resistance attested to their excellent mechanical properties. The current preparation method can be operated at ambient temperature and is not restricted by the substrate type and shape. Therefore, it may also expand the possibilities for future applications of coatings for glass windows, optical microscopes, eyeglasses, agricultural greenhouses, and so on.

show abstract

Section: Resultsmentioning

confidence: 99%

Fabrication of Robust Carbon Dots Containing Coatings with UV-Shielding, Light Conversion, and Antifogging Multiple Functions

Gu,

Ma,

2024

Langmuir

View full text Add to dashboard Cite

show abstract

“…During the COVID-19 pandemic, fogging on medical equipments such trade-off between antifogging and antireflection properties, and a universal strategy to realize multifunctional antifogging films for complex conditions and a prolonged period of time remains a prevailing challenge. [18] Functionalized antifogging materials are widely reported to be used in various applications including self-cleaning, [19,20] antifrost, [21] antireflection, [22] antibacterial, [23,24] and self-healing. [25] So far, different preparation techniques have been developed to fabricate antifogging coatings, such as spin-coating, layer-bylayer assembly, dip-coating, and spray-coating.…”

Section: Introductionmentioning

confidence: 99%

“…[ 17 ] Therefore, it is imperative to take those problems into comprehensive consideration to get trade‐off between antifogging and antireflection properties, and a universal strategy to realize multifunctional antifogging films for complex conditions and a prolonged period of time remains a prevailing challenge. [ 18 ]…”

Section: Introductionmentioning

confidence: 99%

Mechanically Robust Hybrid Coatings for Antifogging, Antireflection, and Self‐Cleaning Applications

Kong

Chen

et al. 2023

Adv Materials Inter

View full text Add to dashboard Cite

as goggles and visual laryngoscopes has severely hampered the work for medical practitioners. In our daily life, we are tired of fogging on swimming goggles, helmet visors, face shields, commercial freezer windows, automobile LED headlights, etc. The blurred vision caused by fogging brings potential safety hazards to aviation and traffic. [3][4][5][6] Therefore, effective and long-lasting antifogging means are of great importance to those practical applications. Currently, two main categories of antifogging strategies have been developed. The first strategy is closely related to the regulation of environmental parameters. By controlling the relative humidity, temperature, and surrounding air flows to achieve the purpose of surface antifogging. However, the scope of its application has greatly been restricted due to the energy consumption, time consuming, materials selection, and mist elimination equipment design and maintenance. Another antifogging strategy mainly focuses on regulating the surface wettability. [7][8][9][10][11] So far, both superhydrophilic and superhydrophobic surfaces are highly sought after by researchers due to its manageable properties, better cost effectiveness, and potential long-lasting antifogging performance. [12,13] The preparation of superhydrophilic surface is a relatively more effective method to inhibit fog formation. Compared to superhydrophobic surfaces, superhydrophilic surfaces tend to exhibit faster evaporation rates, on which the water droplets uniformly spread out due to the higher affinity to the surface and the quick coalescence of water droplets, promoting the formation of a faster fog-free interface. [14] In addition, the uniform water film on superhydrophilic surfaces can prevent unfavorable light scattering and reflection, particularly the applications in transparent windows such as optical devices, energy-conversion instruments, and outdoor greenhouses. [15] Great interests have been shown in constructing micro-geometric structures on solid surfaces and combine them with chemical modifications to achieve various special wettability. [16] However, the resulting structure usually reduces the mechanical strength, followed by bringing about a serious optical loss, which basically refers to two sides as follows: i) One is the enhanced reflection caused by the surface roughness, when the texture size is greater than the wavelength of incident light, and ii) the other is the refraction on the rough surface (Rayleigh scattering). Those drawbacks will undoubtedly limit the application of thin films on transparent windows. [17] Therefore, it is imperative to take those problems into comprehensive consideration to get In this work, a novel multifunctional film with durable antifogging performance and remarkable optical property is designed. By doping and hybridization to build an organic-inorganic siloxane network, the surface achieves long-lasting wettability and superhydrophilicity with a water contact angle of 0°, which is maintained within 10° for over 130 days. The low refr...

show abstract

“…Antifogging coatings are usually composed of hydrophilic substances, and when there are droplets on the coating, the water will quickly spread out without fogging. [14][15][16][17][18][19] Hydrogel coatings, as green coatings consist of hydrophilic polymer networks, [20][21][22][23] are excellent antifogging coating materials. However, the swelling of hydrogels and their poor mechanical properties greatly limit their application in practical environments.…”

Section: Introductionmentioning

confidence: 99%

A Facile Strategy to Construct Anti‐Swelling, Antibacterial, and Antifogging Coatings for Protection of Medical Goggles

Yang

Zhang²,

Guo³

et al. 2023

Macromolecular Bioscience

View full text Add to dashboard Cite

During the COVID‐19 (Corona Virus Disease 2019) pandemic, traditional medical goggles are not only easy to attach bacteria and viruses in long‐term exposure, but easy to fogged up, which increases the risk of infection and affects productivity. Bacterial adhesion and fog can be significantly inhibited through the hydrogel coatings, owing to super hydrophilic properties. On the one hand, hydrogel coatings are easy to absorb water and swell in wet environment, resulting in reduced mechanical properties, even peeling off. On the other hand, the hydrogel coatings don't have intrinsic antibacterial properties, which still poses a potential risk of bacterial transmission. Herein, an anti‐swelling and antibacterial hydrogel coating is synthesized by 2‐hydroxyethyl methacrylate (HEMA), acrylamide (AM), dimethylaminoethyl acrylate bromoethane (IL‐Br), and poly(sodium‐p‐styrenesulfonate) (PSS). Due to the self‐driven entropy reduction effect of polycation and polyanion, an ion cross‐linking network is formed, which endows the hydrogel coating with excellent antiswelling performance. Moreover, because of the synergistic effect of highly hydrated surfaces and the active bactericidal effect from quaternary ammonium cations, the hydrogel coating exhibits outstanding antifouling performances. This work develops a facile strategy to fabricate anti‐swelling, antifouling, and antifogging hydrogel coatings for the protection of medical goggles, and also for biomedical and marine antifouling fields.

show abstract

Recent progress in the mechanisms, preparations and applications of polymeric antifogging coatings

Cited by 38 publications

References 161 publications

Fabrication of Robust Carbon Dots Containing Coatings with UV-Shielding, Light Conversion, and Antifogging Multiple Functions

Fabrication of Robust Carbon Dots Containing Coatings with UV-Shielding, Light Conversion, and Antifogging Multiple Functions

Mechanically Robust Hybrid Coatings for Antifogging, Antireflection, and Self‐Cleaning Applications

A Facile Strategy to Construct Anti‐Swelling, Antibacterial, and Antifogging Coatings for Protection of Medical Goggles

Contact Info

Product

Resources

About