Polymerizable Nonconventional Gel Emulsions and Their Utilization in the Template Preparation of Low-Density, High-Strength Polymeric Monoliths and 3D Printing

Liu, Jianfei; Wang, Pei; He, Yan; Liu, Kaiqiang; Miao, Rong; Fang, Yu

doi:10.1021/acs.macromol.8b02610

Cited by 27 publications

(16 citation statements)

References 46 publications

(59 reference statements)

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“…Emulsions stabilized with submicron pickering particles can be used with a range of liquids and applied to create both micro- and nano-sized emulsion droplets[ 108 ]. SiO 2 nanoparticles can stabilize a styrene-based W/O emulsion which holds its shape before being thermally polymerized in an oil bath[ 109 ]. Pickering emulsions using hydrophobized silica particle can create a 140–450 nm droplet size distribution[ 110 ].…”

Section: Extrusion-based 3d Printingmentioning

confidence: 99%

Considerations Using Additive Manufacture of Emulsion Inks to Produce Respiratory Protective Filters Against Viral Respiratory Tract Infections Such as the COVID-19 Virus

Sherborne¹,

Claeyssens²

2021

ijb

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This review paper explores the potential of combining emulsion-based inks with additive manufacturing (AM) to produce filters for respiratory protective equipment (RPE) in the fight against viral and bacterial infections of the respiratory tract. The value of these filters has been highlighted by the current severe acute respiratory syndrome coronavirus-2 crisis where the importance of protective equipment for health care workers cannot be overstated. Three-dimensional (3D) printing of emulsions is an emerging technology built on a well-established field of emulsion templating to produce porous materials such as polymerized high internal phase emulsions (polyHIPEs). PolyHIPE-based porous polymers have tailorable porosity from the submicron to 100 s of μm. Advances in 3D printing technology enables the control of the bulk shape while a micron porosity is controlled independently by the emulsion-based ink. Herein, we present an overview of the current polyHIPE-based filter applications. Then, we discuss the current use of emulsion templating combined with stereolithography and extrusion-based AM technologies. The benefits and limitation of various AM techniques are discussed, as well as considerations for a scalable manufacture of a polyHIPE-based RPE.

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Section: Extrusion-based 3d Printingmentioning

confidence: 99%

Considerations Using Additive Manufacture of Emulsion Inks to Produce Respiratory Protective Filters Against Viral Respiratory Tract Infections Such as the COVID-19 Virus

Sherborne¹,

Claeyssens²

2021

ijb

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“…[13] In addition, the ink needs high yield stress to stack each printed layer properly. Due to the flexibility of the ink formulation, the DIW method is applicable in many fields, such as tissue engineering, [14] sound adsorption, [15] and ceramic materials. [16] Nevertheless, the geometrical complexity of the printable objects by DIW is still quite limited compared to other AM techniques because sacrificial supports are often needed.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, Pickering emulsion has been successfully employed for DIW by adding particles to stabilize the emulsion and to tune the rheological behavior of the inks. [15,36,37] However, the particles may still form aggregates to clog the nozzle. [38] The fluid-like internal phase in particle-free HIPE is ideal for DIW as the droplets can deform under high shear.…”

Section: Introductionmentioning

confidence: 99%

3D Printable and Sub‐Micrometer Porous Polymeric Monoliths with Shape Reconfiguration Ability by Miniemulsion Templating

Yü

2021

Macro Materials & Eng

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Porous monoliths prepared by high internal phase emulsion (HIPE)templating have received various attentions in the fields of catalysis, separation, and tissue engineering. However, the application of the monoliths from HIPE is limited by their poor mechanical performance and the difficulty of fabricating hierarchically porous structures. Additive manufacturing is an emerging technique that achieves high design freedom by depositing materials layer-by-layer. This work designs medium internal phase emulsion (MIPE) ink with the concept of miniemulsion to prepare 3D printable porous polymeric monoliths with sub-micrometer pores. High shear energy is used to reduce the droplet size of the internal phase and jam the emulsion ink. The jammed MIPE ink shows prominent shear-thinning behavior and appropriate elastic modulus for direct ink writing (DIW). After printing, the external phase composed of stearyl acrylate and hexanediol diacrylate can be cured by photopolymerization to produce poly(MIPE) with interconnected pores in the size of several hundred nanometers. The printed poly(MIPE) demonstrates high mechanical strength and can be reprogrammed into complex geometries difficult for the common DIW processes. The proposed technique provides a new route to fabricate hierarchically porous monoliths with a drastic change of pore dimension, high mechanical strength, and tunable shape reconfiguration.

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“…Aerogels can be prepared through different techniques, and gel–emulsion‐templated synthesis is a green and low‐energy method . Moreover, the internal structure of the aerogels can be adjusted easily by varying the compositions of the continuous phase and dispersed phase, and thus, aerogels with different structures and tunable properties (e.g., mechanical properties, wettability, and surface functionality) can be obtained…”

Section: Introductionmentioning

confidence: 99%

“…[28][29][30][31][32][33] Aerogels can be prepared through different techniques, and gel-emulsion-templated synthesis is ag reen and lowenergym ethod. [34] Moreover,t he internal structure of the aerogels can be adjusted easily by varying the compositions of the continuous phase and dispersed phase, [35] and thus, aerogels with different structures and tunablep roperties (e.g.,m echanical properties, wettability,a nd surfacef unctionality) can be obtained. [36] We considered the critical material needs in water purification and the merits of gel-emulsion-templated aerogelsa nd we tried to develops uitable aerogelsfor the removal of organic and inorganic salts from water in this work.…”

Section: Introductionmentioning

confidence: 99%

Gel–Emulsion‐Templated Polymeric Aerogels for Water Treatment by Organic Liquid Removal and Solar Vapor Generation

et al. 2020

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The importance of water cannot be overstated. It is the most important natural resource for our survival and development. The development of suitable materials for efficient water purification will provide a critical contribution for sustainable water use. In this context, a gel–emulsion‐templated synthesis of a polymeric aerogel has been developed for water treatment. Owing to its hydrophobic nature, the aerogel shows high sorption (nearly 20 times its weight) for organic liquids, such as toluene, phenol, and nitrobenzene, and can be used to remove them from water. The aerogel shows low thermal conductivity (0.032 W m−1 K−1) and excellent light absorption efficiency (>92 %) after carbonization, which provides the possibility for the construction of an interfacial solar vapor generation system. The as‐prepared materials are used to develop a two‐step approach to remove both organic and inorganic contaminants (salts) from water. Importantly, the aerogel shows excellent reusability and high efficiency both for oil sorption and for solar vapor generation. Moreover, the low cost and easy scale‐up of the preparation process lay a solid foundation for practical application. It is anticipated that the prepared aerogels would contribute not only to water purification but also to other related areas.

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Polymerizable Nonconventional Gel Emulsions and Their Utilization in the Template Preparation of Low-Density, High-Strength Polymeric Monoliths and 3D Printing

Cited by 27 publications

References 46 publications

Considerations Using Additive Manufacture of Emulsion Inks to Produce Respiratory Protective Filters Against Viral Respiratory Tract Infections Such as the COVID-19 Virus

Considerations Using Additive Manufacture of Emulsion Inks to Produce Respiratory Protective Filters Against Viral Respiratory Tract Infections Such as the COVID-19 Virus

3D Printable and Sub‐Micrometer Porous Polymeric Monoliths with Shape Reconfiguration Ability by Miniemulsion Templating

Gel–Emulsion‐Templated Polymeric Aerogels for Water Treatment by Organic Liquid Removal and Solar Vapor Generation

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