Development of 3D-Printed Polymer-Zeolite Composite Monoliths for Gas Separation
Organic-inorganic materials have emerged as promising candidates for use in various gas separation processes due to the beneficial synergistic effect of both constituents. Herein, we report a novel and facile approach for fabrication of composite monoliths consisting of Torlon polymer and 13X and 5A zeolites via 3D printing technique for the removal of CO₂ from flue gas. The physical and structural properties of 3D-printed composite monoliths were systematically evaluated and compared with their pristine powders. The formation of monoliths was facilitated through nonsolvent-induced phase separation technique. By the incorporation of ∼31 wt% zeolite particles into the polymer matrix, the obtained monoliths displayed CO₂ capture capacities proportional to the zeolite loading. Most importantly, both 3D-printed Torlon-zeolite monoliths exhibited high compressive strengths of approximately 210 MPa, which was significantly higher than that of 3D-printed zeolite monoliths developed in our previous work. These results demonstrate the superiority of polymer-zeolite composite monoliths, formulated by 3D printing technique as robust structures with outstanding mechanical integrity and comparable adsorption capacity for various adsorption-based gas separation processes. The printing strategy reported herein can be easily extended to other organic-inorganic composite materials with different polymers and inorganic particles.
H. V. Thakkar et al., "Development of 3D-Printed Polymer-Zeolite Composite Monoliths for Gas Separation," Chemical Engineering Journal, vol. 348, pp. 109-116, Elsevier, Sep 2018.
The definitive version is available at https://doi.org/10.1016/j.cej.2018.04.178
Chemical and Biochemical Engineering
Keywords and Phrases
Carbon Dioxide; Compressive Strength; Organic Polymers; Organic-Inorganic Materials; Phase Separation; Zeolites; 3-D Printing; Adsorption Capacities; CO2 Capture; Composite Monoliths; Gas Separation Process; Mechanical Integrity; Nonsolvent-Induced Phase Separation; Organic-Inorganic Composite; 3D Printers; Torlon Polymer
International Standard Serial Number (ISSN)
Article - Journal
© 2018 Elsevier, All rights reserved.
01 Sep 2018