Fogging on optical devices may severely impair vision, resulting in unacceptable adverse consequences. Hydrophilic coatings can prevent surface fogging by instantly facilitating pseudo-film water condensation but suffer from short antifogging duration due to water film thickening with further condensation. Here, an innovative strategy is reported to achieve longer antifogging duration via thickening the robust bonded hydrophilic/hydrophobic polymer heteronetwork coating to enhance its water absorption capacity. The combination of strong interfacial adhesion and hydrophilic/hydrophobic heteronetwork structure is key to this approach, which avoids interfacial failure and swelling-induced wrinkles under typical fogging conditions. The developed antifogging coating exhibits prolonged antifogging durations over a wide temperature range for repetitious usages. Eyeglasses coated with this coating successfully maintained fog-free vision in two typical scenarios. Besides, the coating recipes developed in this study also have potential as underwater glues as they demonstrate strong adhesions to both glass and polymer substrates in wet conditions.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9109053 | PMC |
| http://dx.doi.org/10.1002/advs.202200072 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Facile Formation of Durable SiO-TiO Coatings on Plastic Films for Self-Cleaning and Antifogging.
ACS Appl Mater Interfaces
January 2025
CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China.
Surface fogging affects the light transmittance of various transparent materials and poses potential safety hazards. Superhydrophilic TiO surfaces can effectively prevent fogging by promoting continuous water film formation; however, they often struggle to maintain stable hydrophilicity and adhesion on plastic films. Self-cleaning and antifogging coatings on plastic substrates are crucial for applications requiring long-term clarity and minimal maintenance costs.
View Article and Find Full Text PDFTough, antibacterial, antioxidant, antifogging and washable chitosan/nanocellulose-based edible coatings for grape preservation.
Food Chem
December 2024
College of Food Science and Technology, Bohai University, Jinzhou, Liaoning 121013, China. Electronic address:
This study focused on extracting nanocellulose from food processing waste to create a multi-functional edible coating for preserving grapes. Nanocellulose, in the form of short rods with diameters ranging from 30 to 130 nm, was extracted from soy hulls. Edible coatings were then prepared through an ion cross-linking method.
View Article and Find Full Text PDFRobust special wettability materials for oil-water separation: Mechanisms and strategies.
Adv Colloid Interface Sci
January 2025
Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, People's Republic of China; State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China. Electronic address:
Special wettability materials have been favored by researchers in recent years, and have played a great role in a variety of fields such as fog water collection, anti-fog, anti-icing, self-cleaning, etc. Especially in the field of oil-water separation, the frequent occurrence of offshore oil spills has seriously endangered the ecological environment. Inspired by nature, researchers have developed and manufactured a lot of bionic special wettability materials, which are expected to be effective in oil-water separation and solve the problem.
View Article and Find Full Text PDFFabrication of Long-Lasting Superhydrophilic Anti-Fogging Film Via Rapid and Simple UV Process.
Adv Sci (Weinh)
November 2024
Department of Polymer Science and Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk, 39177, Republic of Korea.
Surface fogging is a common phenomenon that can result in restricted visibility, reduced light absorption, and image distortion. Although both hydrophobic and hydrophilic surfaces are effective in preventing this phenomenon, typical coatings in both have limitations, including low durability and the need for frequent reapplication. To address these issues, a highly durable anti-fogging film that lasts over five weeks, even under high moisture conditions, while maintaining a promising degree of transparency (> 60%) is developed.
View Article and Find Full Text PDFSurprisingly fast self-healing coatings with anti-fog and antimicrobial activities via host-guest interaction.
J Colloid Interface Sci
February 2025
Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China.
Dual functional coatings with anti-fog and antimicrobial performances greatly enhance the safety and reliability of medical detection devices, but are prone to mechanical damage, resulting in reduced performance and a shorter service lifespan. Herein, a semi-interpenetrating polymer network (SIPN) coating, featuring hydrophobic-hydrophilic balanced copolymers as bulk chains and host-guest inclusion compounds (HGICs) as cross-linkers, is reported, which demonstrates particularly effective anti-fog and antibacterial performances, along with a surprisingly fast self-healing capability under various scenarios. This HGIC-based coating displayed remarkable anti-fog capability over a wide temperature range from -20 ℃ to 85 ℃ and exhibited reliable antibacterial activities (≥98 %) against both gram-positive and gram-negative bacteria.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!