Photocurable 3D-Printable Systems with Controlled Porosity towards CO<sub>2</sub> Air Filtering Applications
Porous organic polymers are versatile platforms, easily adaptable to a wide range of applications, from air filtering to energy devices. Their fabrication via vat photopolymerization enables them to control the geometry on a multiscale level, obtaining hierarchical porosity with enhanced surface-to-...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/23/5265 |
| _version_ | 1797462238687133696 |
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| author | Annalisa Chiappone Alessandro Pedico Stefania Porcu Candido Fabrizio Pirri Andrea Lamberti Ignazio Roppolo |
| author_facet | Annalisa Chiappone Alessandro Pedico Stefania Porcu Candido Fabrizio Pirri Andrea Lamberti Ignazio Roppolo |
| author_sort | Annalisa Chiappone |
| collection | DOAJ |
| description | Porous organic polymers are versatile platforms, easily adaptable to a wide range of applications, from air filtering to energy devices. Their fabrication via vat photopolymerization enables them to control the geometry on a multiscale level, obtaining hierarchical porosity with enhanced surface-to-volume ratio. In this work, a photocurable ink based on 1,6 Hexanediol diacrylate and containing a high internal phase emulsion (HIPE) is presented, employing PLURONIC F-127 as a surfactant to generate stable micelles. Different parameters were studied to assess the effects on the morphology of the pores, the printability and the mechanical properties. The tests performed demonstrates that only water-in-oil emulsions were suitable for 3D printing. Afterwards, 3D complex porous objects were printed with a Digital Light Processing (DLP) system. Structures with large, interconnected, homogeneous porosity were fabricated with high printing precision (300 µm) and shape fidelity, due to the addition of a Radical Scavenger and a UV Absorber that improved the 3D printing process. The formulations were then used to build scaffolds with complex architecture to test its application as a filter for CO<sub>2</sub> absorption and trapping from environmental air. This was obtained by surface decoration with NaOH nanoparticles. Depending on the surface coverage, tested specimens demonstrated long-lasting absorption efficiency. |
| first_indexed | 2024-03-09T17:33:39Z |
| format | Article |
| id | doaj.art-45ebd69cb0d1450d90d912bee5f49474 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T17:33:39Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-45ebd69cb0d1450d90d912bee5f494742023-11-24T12:01:12ZengMDPI AGPolymers2073-43602022-12-011423526510.3390/polym14235265Photocurable 3D-Printable Systems with Controlled Porosity towards CO<sub>2</sub> Air Filtering ApplicationsAnnalisa Chiappone0Alessandro Pedico1Stefania Porcu2Candido Fabrizio Pirri3Andrea Lamberti4Ignazio Roppolo5Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, S.S. 554 bivio Sestu, 09042 Monserrato, ItalyDepartment of Applied Science and Technology, Politecnico di Torino, C.so Duca Degli Abruzzi 24, 10129 Turin, ItalyDepartment of Physics, Università di Cagliari, S.p. no. 8 Km 0700, 09042 Monserrato, ItalyDepartment of Applied Science and Technology, Politecnico di Torino, C.so Duca Degli Abruzzi 24, 10129 Turin, ItalyDepartment of Applied Science and Technology, Politecnico di Torino, C.so Duca Degli Abruzzi 24, 10129 Turin, ItalyDepartment of Applied Science and Technology, Politecnico di Torino, C.so Duca Degli Abruzzi 24, 10129 Turin, ItalyPorous organic polymers are versatile platforms, easily adaptable to a wide range of applications, from air filtering to energy devices. Their fabrication via vat photopolymerization enables them to control the geometry on a multiscale level, obtaining hierarchical porosity with enhanced surface-to-volume ratio. In this work, a photocurable ink based on 1,6 Hexanediol diacrylate and containing a high internal phase emulsion (HIPE) is presented, employing PLURONIC F-127 as a surfactant to generate stable micelles. Different parameters were studied to assess the effects on the morphology of the pores, the printability and the mechanical properties. The tests performed demonstrates that only water-in-oil emulsions were suitable for 3D printing. Afterwards, 3D complex porous objects were printed with a Digital Light Processing (DLP) system. Structures with large, interconnected, homogeneous porosity were fabricated with high printing precision (300 µm) and shape fidelity, due to the addition of a Radical Scavenger and a UV Absorber that improved the 3D printing process. The formulations were then used to build scaffolds with complex architecture to test its application as a filter for CO<sub>2</sub> absorption and trapping from environmental air. This was obtained by surface decoration with NaOH nanoparticles. Depending on the surface coverage, tested specimens demonstrated long-lasting absorption efficiency.https://www.mdpi.com/2073-4360/14/23/52653D printingphotocurable emulsionCO<sub>2</sub> captureair-filtering |
| spellingShingle | Annalisa Chiappone Alessandro Pedico Stefania Porcu Candido Fabrizio Pirri Andrea Lamberti Ignazio Roppolo Photocurable 3D-Printable Systems with Controlled Porosity towards CO<sub>2</sub> Air Filtering Applications Polymers 3D printing photocurable emulsion CO<sub>2</sub> capture air-filtering |
| title | Photocurable 3D-Printable Systems with Controlled Porosity towards CO<sub>2</sub> Air Filtering Applications |
| title_full | Photocurable 3D-Printable Systems with Controlled Porosity towards CO<sub>2</sub> Air Filtering Applications |
| title_fullStr | Photocurable 3D-Printable Systems with Controlled Porosity towards CO<sub>2</sub> Air Filtering Applications |
| title_full_unstemmed | Photocurable 3D-Printable Systems with Controlled Porosity towards CO<sub>2</sub> Air Filtering Applications |
| title_short | Photocurable 3D-Printable Systems with Controlled Porosity towards CO<sub>2</sub> Air Filtering Applications |
| title_sort | photocurable 3d printable systems with controlled porosity towards co sub 2 sub air filtering applications |
| topic | 3D printing photocurable emulsion CO<sub>2</sub> capture air-filtering |
| url | https://www.mdpi.com/2073-4360/14/23/5265 |
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