Fabrication of lightweight and robust cryogel with opposite wettability for effective oil-water separation via sustainable and toxic-free approach

Ruello, James Laurence A.; Kim, Hern

doi:10.1016/j.jece.2021.105477

Cited by 11 publications

(2 citation statements)

References 52 publications

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“…The figure also shows the presence of atmospheric CO 2 in the material during the test, which is evident at 2342 cm −1 . 33 Simultaneously, the peak at 3337 cm −1 of the material after CVD (3CBF/cPVA-S) has become weaker because of the hydroxyl group being replaced with the silane group 34 while the peak at 1124 cm −1 denotes the stretching vibration of Si− O−Si. 35 It should be noted that only hydroxyl functional groups from PVA were reacted with MTMS because it is the only one exposed to the atmosphere, which explains the visible −OH peak from the figure.…”

Section: Resultsmentioning

confidence: 99%

Excellent Wideband Acoustic Absorption of a Multifunctional Composite Fibrous Panel with a Dual-Pore Network from Milled Corrugated Box Wastes

Ruello

Pornea

Puguan

et al. 2022

ACS Appl. Polym. Mater.

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A multifunctional composite fibrous sound-absorption panel was acquired via sustainable fabrication from milling corrugated cardboard box wastes to unleash its fibrous property, creating a high-porosity material. Here, a multifunctional composite fibrous panel from the milled fibers of corrugated cardboard boxes reinforced by cross-linked polyvinyl alcohol as a biodegradable binder is generated. It is designed to have a dual-pore structure with a low density of 0.04 g/cm3, which can withstand a load of 5000 times its weight and is effective for the dissipation of sound at a wide range of frequencies. The prepared material demonstrates an excellent average absorption coefficient of 0.83 at wideband frequency, which is about 280–6300 Hz. The outstanding sound absorption performance of the material is primarily ascribed to its dual-pore architecture, the anisotropic pores interconnected by the random pores formed from the collection of cardboard box fibers within the architecture of the porous material, its thickness, and the concentration of corrugated box fibers. Furthermore, the prepared material manifests a unique porous morphological structure, favorable thermal properties, excellent mechanical stability and sustainability, and superhydrophobic properties. The successful fabrication of this riveting material endowed a promising result that may be applicable for various types of applications.

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Section: Resultsmentioning

confidence: 99%

Excellent Wideband Acoustic Absorption of a Multifunctional Composite Fibrous Panel with a Dual-Pore Network from Milled Corrugated Box Wastes

Ruello

Pornea

Puguan

et al. 2022

ACS Appl. Polym. Mater.

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“…Its modification had served as an initial strategy to enforce multifunctionality. It has been determined that varying the size of the pores and their construction has an incremental impact on its overall performance. , Therefore, the challenge is to establish a strategy to generate a synergistic combination of these renewable materials’ structural integrity and intrinsic properties catering to various applications. The manipulation of the alignment of compounding materials posed a strategy to diversify application.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Dual-Pore Network Aerogel Composite Material for Broadband Sound Absorption, Thermal Insulation, and Fire Repellent Applications

Pornea

Puguan

Ruello

et al. 2022

ACS Appl. Polym. Mater.

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Highly porous aerogels are greatly anticipated for multifunctional utilization, including building insulators, sound absorbers, filters, energy storage devices, etc. Currently, most aerogels are usually resourced from fossil fuels and nonrenewable materials and often require an additional step to provide multifunctionality. In this work, a facile strategy is presented to fabricate a multifunctional scaffold valorizing polypropylene mask filters intercalated by calcium alginate (CAP) through an ice templating method to generate a dual-pore structure with fibrillated networks. The exploitation of the enhanced porous cell wall and the intrinsic properties of the constituting materials provided a platform for multifunctionalities such as sound absorption, thermal insulation, and fire retardant properties. The dual-pore attribute implemented an effective broadband frequency sound absorption. The outstanding acoustic performance can be ascribed to the structural integrity of the dual-pore microchannels that dissipate the sound within the interconnected fiber wall resonating the sound in different directions. This structural orientation also endows excellent thermal transport properties for a broad range of temperature conditions depleting energy transport. Moreover, the resultant material exhibited flame retardant properties without any further functionalization but through its structural attributes and innate nature of the compounding material. Upon pyrolysis, the structure networks form a char layer that acts as a fire-repellent barrier to induce fire propagation. Without further modification, the generated aerogel can serve as a base platform for sustainable multifunctional scaffolds. This strategy is realized to be a universal technique to prepare highly porous allotropic aerogels with various functionalities.

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Advancing biomedicine with gel‐based materials and composites: A comprehensive review

Sajjadi,

Gholizadeh‐Hashjin,

Shafizadeh

et al. 2023

J of Applied Polymer Sci

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Polymer gels are an important class of soft materials with growing interest for biomedical applications due to their distinctive properties. These three‐dimensional polymer networks are capable of imbibing large amounts of solvent while maintaining solid‐like behavior. Polymer gels can be classified into hydrogels, aerogels, and cryogels based on their structural features. Their highly porous structure, swelling capacity, and biocompatibility make them well‐suited for diverse uses in biomedicine. Recent advances have enabled the engineering of polymer gels with tunable architectures and smart functionality responsive to stimuli. These developments have expanded the potential of gels in areas like tissue engineering, drug delivery, wound healing, and biosensing. However, the toxicity of polymer gels remains an important consideration for biomedical use. Careful design and toxicological evaluation is essential to ensure safe clinical application. Overall, polymer gels offer new possibilities in biomedicine through continued research on synthesizing biocompatible gels and elucidating structure–function relationships. This review provides an updated perspective on the progress and promise of tailoring polymer gels to advance biomedicine, while also considering the critical aspect of biocompatibility.

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Fabrication of lightweight and robust cryogel with opposite wettability for effective oil-water separation via sustainable and toxic-free approach

Cited by 11 publications

References 52 publications

Excellent Wideband Acoustic Absorption of a Multifunctional Composite Fibrous Panel with a Dual-Pore Network from Milled Corrugated Box Wastes

Excellent Wideband Acoustic Absorption of a Multifunctional Composite Fibrous Panel with a Dual-Pore Network from Milled Corrugated Box Wastes

Multifunctional Dual-Pore Network Aerogel Composite Material for Broadband Sound Absorption, Thermal Insulation, and Fire Repellent Applications

Advancing biomedicine with gel‐based materials and composites: A comprehensive review

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