Photopolymerized superhydrophobic hybrid coating enabled by dual-purpose tetrapodal ZnO for liquid/liquid separation

Li, Chenxuan; Lee, Brian; Wang, Chenxu; Bajpayee, Aayushi; Douglas, Lacey; Phillips, Bailey; Yu, Guanghua; Rivera-González, Natalia; Peng, Bo‐Ji; Jiang, Zhiyuan; Sue, Hung‐Jue; Banerjee, Sarbajit; Fang, Lei

doi:10.1039/d1mh01672e

Cited by 14 publications

(4 citation statements)

References 66 publications

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“…Photopolymerizations have significantly advanced the polymer field in coatings, photoresists, adhesives, and 3D printing by providing extra spatiotemporal control and efficient fabrication capability under mild circumstances. − Photopolymerization processes integrated with regulation strategies, including the photoactivity (photoinitiators or resins) and external irradiation intensity, may render fresh performances and functions to the photopolymers. − However, such polymers, which commonly require the screening of specific oligomer precursors, are challenging to reconcile the various material properties from the photopolymerization kinetics regulatory through light intensity alone, instead of modifying the host formulation structures. − In parallel, conventional low-penetration UV light-induced photopolymerization is difficult to apply to bulk materials and complex substrates, further limiting the regulatory dimensionality of photopolymerization techniques. , …”

Section: Introductionmentioning

confidence: 99%

Internal Microdomain Regulatory Based on Upconversion Particles for Controllable Near-Infrared Photopolymerization Kinetics and Material Properties

Zou,

Xu,

et al. 2024

Macromolecules

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The nature of photopolymer materials considerably depends on their solidification extent, which can be altered only by the formulation photoactivity and external light intensity. Herein, an underlying internal microdomain regulatory (IMR) mechanism for the modulation of photopolymerization behaviors and material properties based on tunable upconversion luminescence is reported. The results revealed that the regulatory mechanism is dependent on the dispersion and photophysics of the upconversion particles (UCPs). Such particles as inner illuminators initiating near-infrared (NIR) photopolymerization can be tuned by a timesharing hydrothermal reaction with sizes ranging from 5 to 40 μm for continuous variations of UCP distribution patterns and luminous efficiency in the photosensitive medium. The enhancement of upconversion luminescence exhibits a significant size dependence, allowing the photopolymerization process to begin near a single UCP for continuously controlling microdomain kinetics. UCPs with ∼40 μm have excellent dispersion and size-saturation luminescence intensity. These UCPs possess the widest range of microdomain gradient variation (0−45% in 130 μm) due to the IMR mechanism. Moreover, the uniquely controllable mechanism delays the conversion corresponding to the gel point (C gel ), allowing for greater polymer chain relaxation to release the shrinkage stress and improve the mechanical properties of the materials. The proposed IMR provides an unparalleled regulatory dimensionality for photopolymer performances and expands the prospects of photopolymerization technology in high-performance materials manufacturing.

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Section: Introductionmentioning

confidence: 99%

Internal Microdomain Regulatory Based on Upconversion Particles for Controllable Near-Infrared Photopolymerization Kinetics and Material Properties

Zou,

Xu,

et al. 2024

Macromolecules

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“…For example, SH PBMA coatings by Walter et al were spray-deposited SH coatings based on PBMA with WCAs of ∼150° . Another report involves a multistep process of spray-coating, soaking, washing, and drying stainless steel meshes with a hybrid of tetrapodal ZnO with various forms of polymethacrylate, including PBMA, resulting in borderline superhydrophobicity (150 ± 5°) . Further research on PBMA-based SH surfaces is necessary to push their functionality close to what has been achieved using fluorocarbon-based systems.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Hexadecyltrimethoxysilane-Modified Fumed Silica Nanostructure/Poly(butyl methacrylate) Composite Thin Films via Aerosol-Assisted Deposition: Implications for Self-Cleaning Surfaces

Huo,

De Leon Reyes,

Kalmoni

et al. 2023

ACS Appl. Nano Mater.

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Superhydrophobic coatings with their unique nanostructured surface properties have application in many industrially important technologies but are currently dominated by environmentally problematic fluorinated compounds. Here, we demonstrate the fabrication of fluorocarbon-free superhydrophobic coatings consisting of poly(butyl methacrylate) (PBMA) and nanostructured hexadecyltrimethoxysilane (HDTMS)-functionalized fumed SiO 2 /PBMA as self-cleaning surfaces via a facile ambient pressure aerosol deposition route. X-ray photoelectron and infrared spectroscopy measurements showed successful composite formation. The deposition temperature and HDTMS-SiO 2 :PBMA ratio was optimized to give films that had a water contact angle as high as 161 ± 1°and a sliding angle of 1°, owing to a hierarchical surface nano-and microstructure and a root-mean-square surface roughness of 592 nm. This work shows a high-throughput single-step route to environmentally friendly PBMA-based superhydrophobic coatings.

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“…To overcome this difficulty, several manufacturing techniques have been used to endow porous materials, which offer a promising remedy for oily-water treatment. [12][13][14][15][16] A promising way to combat spills and limit their effects is oil sorbents. They can absorb the oil, recover, and then reuse it.…”

Section: Introductionmentioning

confidence: 99%

Tuning Carbon Material Modified Commercial Sponge Toward Pragmatic Oil Spill Cleanup

Vo,

Yu,

Ahn

2023

Adv Materials Inter

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A practical approach to designing 3D porous materials with new functionalities for oil spill clean‐up attracts widespread attention. The carbonized seaweed‐coated melamine sponge (CMS) can selectively absorb oil immediately due to its countless pores using capillary‐driven force to absorb oil. The microstructure and behaviors of the CMS are thoroughly investigated in relation to the unique porous structure, mechanical stability, wetting response, and in‐depth processing of the high‐speed visualization experiment to determine its promising abilities. For the special CMS structure with a unit cell size of 1 × 1 × 1 cm, the total volume of oil inside the capillary tube is drawn inward after 56 ms, and the absorption rate is estimated to be ≈15 200 liters per spare metre hour without any external power inputs. According to the results, theoretical models are proposed to estimate the oil absorption rate as a function of time by continuity of the oil column in the capillary tube based on quantitative analysis of the optically analyzed oil interface phenomena. It is first shown to be a reliable approach for describing volumetric absorption rate and effective CMS thickness by visualizing the capillary spreading flow. It is expected that this research will hold tremendous potential strategies for environmental remediation.

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Photopolymerized superhydrophobic hybrid coating enabled by dual-purpose tetrapodal ZnO for liquid/liquid separation

Abstract: Dual purposed ZnO tetrapods promote photopolymerization of methacrylates and provide surface roughness for superhydrophobicity. Large area photochemical fabrication of hybrid coating is demonstrated for liquid/liquid separation applications.

Cited by 14 publications

References 66 publications

Internal Microdomain Regulatory Based on Upconversion Particles for Controllable Near-Infrared Photopolymerization Kinetics and Material Properties

Internal Microdomain Regulatory Based on Upconversion Particles for Controllable Near-Infrared Photopolymerization Kinetics and Material Properties

Superhydrophobic Hexadecyltrimethoxysilane-Modified Fumed Silica Nanostructure/Poly(butyl methacrylate) Composite Thin Films via Aerosol-Assisted Deposition: Implications for Self-Cleaning Surfaces

Tuning Carbon Material Modified Commercial Sponge Toward Pragmatic Oil Spill Cleanup

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