UV-cured organic–inorganic composites for highly durable and flexible antireflection coatings

Shu, Peixian; Ai, Ling; Kong, Yunhui; Ji, Huihui; Lu, Yuehui; Zhang, Jing; Song, Weijie

doi:10.1016/j.apsusc.2022.152600

Cited by 12 publications

(6 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Preparation of Silica-Titanium Hybrid Sols: Before the preparation of hybrid sols, the silica sols were synthesized by following the previous work. [43] First, TEOS was used as the silica source and mixed with EtOH, dilute HCl (0.12 m) and H 2 O in the molar ratio of 1:4.2:6 × 10 −5 :1.2 and refluxed at 50 °C for 2-3 h. The obtained precursor sols were kept in a sealed container and cooled to room temperature for use. Thereafter, F127 was added to a mixture of EtOH, H 2 O, and dilute HCl (0.12 m) and stirred vigorously for about 1 h at room temperature to obtain stable F127 dispersion.…”

Section: Methodsmentioning

confidence: 99%

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

Kong

Chen

et al. 2023

Adv Materials Inter

Self Cite

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

Section: Methodsmentioning

confidence: 99%

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

Kong

Chen

et al. 2023

Adv Materials Inter

Self Cite

View full text Add to dashboard Cite

show abstract

“…Urethane and epoxy acrylate coating cured by a mercury lamp Multilayer protective wood coating [142] Polyurethane acrylate cured using an excimer lamp and a UV mercury lamp Anti-fingerprint coating for wood application [71] Polyurethane methacrylate coating cured using LED Anti-icing coating for tin [143] Water-based polyurethane acrylate coating cured using LED Corrosion resistance for metal; can also be applied on glass [99] Siloxymethyl-modified silicone acrylate cured using a mercury lamp and a moisture cure Anti-smudge coating and ant fingerprint coating for PET film [144] Silsesquioxanes and an acidic silica sol composite coating film cured by a mercury lamp Antireflection coating for a PET substrate [145] Epoxy-functionalized siloxane hybrid coating matrix cured using LED Glass fabric-reinforced siloxane hybrid composite [146] Polyurethane acrylate coating Antifogging coating for plastic substrates like PET, PC, PMMA, PBS [147] Polyurethan coating cured using a mercury lamp Anti-smudge coating for glass, wood, tin thermoplastic urethanes [148] Acrylic-styrene coating cured using a mercury lamp Varnish coating for glass [149] Fluorinated polyoxetane and polysiloxane coating cured using LED Antifouling coating for glass and PET [150] In contrast to most common filler/pigment/additive free academia research, recently published patents (Table 7) show that an industrially viable UV-cured coating system has oligomers, diluents, fillers, and additives. We note that even if major academic research disregards this complex system for the understanding of basic and foundational science, some of the papers published do focus on UV curable composite coatings.…”

Section: Uv System and Lampmentioning

confidence: 99%

To Shed Light on the UV Curable Coating Technology: Current State of the Art and Perspectives

Patil,

Thomas,

Patil

et al. 2023

J. Compos. Sci.

View full text Add to dashboard Cite

The industrial application of UV curable coatings is being widely commercialized at a rapid pace with very diversified product markets. UV curing has existed for many years now, but the new commercial opportunities emerging for sustainable, and climate friendly technologies have driven demand for photo-curable coating systems. It is primarily attributed to its environmentally friendly solvent-free and energy-efficient method. Precedented UV light curable coatings are being commercialized and numerous lamp sources are being extensively studied. In such an era of predominant research evolving the UV curing technology horizon, we attempt to outline the state of the art, opportunities, and challenges. This contribution attempts to highlight, in a comprehensive way, sustainable UV coating on the basis of recent research advancements, existing challenges and prospective scope in this field. With a set of prerequisite foundational knowledge into UV curable coatings and mechanisms, the review has meticulously looked at the recent research advancements. This review contribution attempts to focus on three aspects: the known science behind UV curing coatings, coupled with the recent advancements, and future opportunities.

show abstract

“…However, a mismatch in the mechanical properties between the sputter-coated material and the substrate often results in poor adhesion of the ARC to the surface, causing delamination and fracture, particularly under bending deformations. 15,16 Beyond robust surface adhesion, incorporating a refractive index gradient into ARCs could significantly enhance their functionality by effectively suppressing reflections across a broad spectrum of visible light.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Although porous silica ARCs offer excellent optical and mechanical properties, their high-temperature fabrication processes (e.g., >300 °C) limit their use on polymeric substrates. , Several low-temperature, vacuum-based techniques have been developed to deposit low-index porous ARCs on polymer substrates. However, a mismatch in the mechanical properties between the sputter-coated material and the substrate often results in poor adhesion of the ARC to the surface, causing delamination and fracture, particularly under bending deformations. , Beyond robust surface adhesion, incorporating a refractive index gradient into ARCs could significantly enhance their functionality by effectively suppressing reflections across a broad spectrum of visible light.…”

Section: Introductionmentioning

confidence: 99%

Flexible Antireflection Coatings with Enhanced Durability and Antifogging Properties

Hwang,

Kim,

Nam

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Antireflection coatings (ARCs) enhance optical clarity and improve light transmission by reducing glare and reflections. The application of conventional ARCs in flexible devices, however, is impeded by their lack of durability, particularly under bending deformation. We develop ARCs that withstand delamination and fracture, remaining intact even after 1000 bending cycles with a 5 cm bending radius. We fabricate integrated ARCs (iARCs) on a poly(methyl methacrylate) (PMMA) substrate by inducing free polymers to infiltrate the interstices of a disordered assembly of hollow silica nanochains and nanospheres. The polydispersity of PMMA creates a refractive index gradient, yielding a broadband antireflection capability. The nanochain-based iARCs are superior to the nanosphere-based coatings in both antireflection properties and mechanical durability, owing to the lower packing density and mechanical interlocking of the nanochains, respectively. Additionally, these nanochain iARCs display antifogging properties stemming from their superhydrophilicity. While our demonstrations are based on PMMA as a model substrate, this methodology is potentially extendable to other polymers, enhancing the iARC's applicability across various practical applications, including flexible and wearable devices.

show abstract

UV-cured organic–inorganic composites for highly durable and flexible antireflection coatings

Cited by 12 publications

References 40 publications

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

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

To Shed Light on the UV Curable Coating Technology: Current State of the Art and Perspectives

Flexible Antireflection Coatings with Enhanced Durability and Antifogging Properties

Contact Info

Product

Resources

About