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Title: Chemically Active, Porous 3D-Printed Thermoplastic Composites

Abstract

Metal-organic frameworks (MOFs) exhibit exceptional properties and are widely investigated because of their structural and functional versatility relevant to catalysis, separations, and sensing applications. However, their commercial or large-scale application is often limited by their powder forms. To address this, we report the production of MOF-thermoplastic polymer composites accessed via a standard 3D printer. MOFs (Zeolitic imidazolate framework; ZIF-8) were successfully incorporated homogeneously into both poly(lactic acid) (PLA) and thermoplastic polyurethane (TPU) matrices, extruded into filaments, and utilized for on-demand access to 3D structures by fused-deposition modeling. Printed rigid PLA-MOF composites displayed good structural integrity, high surface area ((SA)avg = 531 m2 g-1) and hierarchical pore features. Flexible TPU-MOF composites (SAavg = 706 m2 g-1) were achieved by employing a sacrificial fluoropolymer readily removed post-printing. Critically, embedded particles in the plastic matrices retain their ability to participate in chemical interactions characteristic of the parent MOF. The fabrication strategies can be extended to other MOFs and illustrate the potential of 3D printing to create unique porous and high surface area chemically-active structures.

Authors:
; ; ; ; ORCiD logo; ORCiD logo;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1439658
Report Number(s):
PNNL-SA-129492
Journal ID: ISSN 1944-8244
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: ACS Applied Materials and Interfaces; Journal Volume: 10; Journal Issue: 17
Country of Publication:
United States
Language:
English
Subject:
Additive Manufacturing; Metal-Organic Framework; 3D printing; Polymer Composite; Porosity

Citation Formats

Evans, Kent A., Kennedy, Zachary C., Arey, Bruce W., Christ, Josef F., Schaef, Herbert T., Nune, Satish K., and Erikson, Rebecca L. Chemically Active, Porous 3D-Printed Thermoplastic Composites. United States: N. p., 2018. Web. doi:10.1021/acsami.7b17565.
Evans, Kent A., Kennedy, Zachary C., Arey, Bruce W., Christ, Josef F., Schaef, Herbert T., Nune, Satish K., & Erikson, Rebecca L. Chemically Active, Porous 3D-Printed Thermoplastic Composites. United States. doi:10.1021/acsami.7b17565.
Evans, Kent A., Kennedy, Zachary C., Arey, Bruce W., Christ, Josef F., Schaef, Herbert T., Nune, Satish K., and Erikson, Rebecca L. Wed . "Chemically Active, Porous 3D-Printed Thermoplastic Composites". United States. doi:10.1021/acsami.7b17565.
@article{osti_1439658,
title = {Chemically Active, Porous 3D-Printed Thermoplastic Composites},
author = {Evans, Kent A. and Kennedy, Zachary C. and Arey, Bruce W. and Christ, Josef F. and Schaef, Herbert T. and Nune, Satish K. and Erikson, Rebecca L.},
abstractNote = {Metal-organic frameworks (MOFs) exhibit exceptional properties and are widely investigated because of their structural and functional versatility relevant to catalysis, separations, and sensing applications. However, their commercial or large-scale application is often limited by their powder forms. To address this, we report the production of MOF-thermoplastic polymer composites accessed via a standard 3D printer. MOFs (Zeolitic imidazolate framework; ZIF-8) were successfully incorporated homogeneously into both poly(lactic acid) (PLA) and thermoplastic polyurethane (TPU) matrices, extruded into filaments, and utilized for on-demand access to 3D structures by fused-deposition modeling. Printed rigid PLA-MOF composites displayed good structural integrity, high surface area ((SA)avg = 531 m2 g-1) and hierarchical pore features. Flexible TPU-MOF composites (SAavg = 706 m2 g-1) were achieved by employing a sacrificial fluoropolymer readily removed post-printing. Critically, embedded particles in the plastic matrices retain their ability to participate in chemical interactions characteristic of the parent MOF. The fabrication strategies can be extended to other MOFs and illustrate the potential of 3D printing to create unique porous and high surface area chemically-active structures.},
doi = {10.1021/acsami.7b17565},
journal = {ACS Applied Materials and Interfaces},
number = 17,
volume = 10,
place = {United States},
year = {Wed Jan 31 00:00:00 EST 2018},
month = {Wed Jan 31 00:00:00 EST 2018}
}