3D Printing All-Aromatic Polyimides using Mask-Projection Stereolithography: Processing the Nonprocessable

Maruti Hegde, Viswanath Meenakshisundaram, Nicholas Chartrain, Susheel Sekhar, Danesh Tafti, Christopher B. Williams, Timothy Edward Long

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

High-performance, all-aromatic, insoluble, engineering thermoplastic polyimides, such as pyromellitic dianhydride and 4,4′-oxydianiline (PMDA–ODA) (Kapton), exhibit exceptional thermal stability (up to ≈600 °C) and mechanical properties (Young's modulus exceeding 2 GPa). However, their thermal resistance, which is a consequence of the all-aromatic molecular structure, prohibits processing using conventional techniques. Previous reports describe an energy-intensive sintering technique as an alternative technique for processing polyimides with limited resolution and part fidelity. This study demonstrates the unprecedented 3D printing of PMDA–ODA using mask-projection stereolithography, and the preparation of high-resolution 3D structures without sacrificing bulk material properties. Synthesis of a soluble precursor polymer containing photo-crosslinkable acrylate groups enables light-induced, chemical crosslinking for spatial control in the gel state. Postprinting thermal treatment transforms the crosslinked precursor polymer to PMDA–ODA. The dimensional shrinkage is isotropic, and postprocessing preserves geometric integrity. Furthermore, large-area mask-projection scanning stereolithography demonstrates the scalability of 3D structures. These unique high-performance 3D structures offer potential in fields ranging from water filtration and gas separation to automotive and aerospace technologies.

Original languageEnglish
Article number1701240
JournalAdvanced Materials
Volume29
Issue number31
DOIs
Publication statusPublished - 2017 Aug 18
Externally publishedYes

Fingerprint

Stereolithography
Polyimides
Printing
Masks
Water filtration
Polymers
Processing
Heat resistance
Crosslinking
Molecular structure
Thermoplastics
Scalability
Materials properties
Thermodynamic stability
Sintering
Gels
Elastic moduli
Heat treatment
Scanning
Mechanical properties

Keywords

  • 3D printing
  • engineering polymers
  • mask-projection stereolithography
  • polyimide
  • thermoplastics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Hegde, M., Meenakshisundaram, V., Chartrain, N., Sekhar, S., Tafti, D., Williams, C. B., & Long, T. E. (2017). 3D Printing All-Aromatic Polyimides using Mask-Projection Stereolithography: Processing the Nonprocessable. Advanced Materials, 29(31), [1701240]. https://doi.org/10.1002/adma.201701240

3D Printing All-Aromatic Polyimides using Mask-Projection Stereolithography : Processing the Nonprocessable. / Hegde, Maruti; Meenakshisundaram, Viswanath; Chartrain, Nicholas; Sekhar, Susheel; Tafti, Danesh; Williams, Christopher B.; Long, Timothy Edward.

In: Advanced Materials, Vol. 29, No. 31, 1701240, 18.08.2017.

Research output: Contribution to journalArticle

Hegde, M, Meenakshisundaram, V, Chartrain, N, Sekhar, S, Tafti, D, Williams, CB & Long, TE 2017, '3D Printing All-Aromatic Polyimides using Mask-Projection Stereolithography: Processing the Nonprocessable', Advanced Materials, vol. 29, no. 31, 1701240. https://doi.org/10.1002/adma.201701240
Hegde M, Meenakshisundaram V, Chartrain N, Sekhar S, Tafti D, Williams CB et al. 3D Printing All-Aromatic Polyimides using Mask-Projection Stereolithography: Processing the Nonprocessable. Advanced Materials. 2017 Aug 18;29(31). 1701240. https://doi.org/10.1002/adma.201701240
Hegde, Maruti ; Meenakshisundaram, Viswanath ; Chartrain, Nicholas ; Sekhar, Susheel ; Tafti, Danesh ; Williams, Christopher B. ; Long, Timothy Edward. / 3D Printing All-Aromatic Polyimides using Mask-Projection Stereolithography : Processing the Nonprocessable. In: Advanced Materials. 2017 ; Vol. 29, No. 31.
@article{6e160bbb3dc04f55b7adfd668d6dc0b6,
title = "3D Printing All-Aromatic Polyimides using Mask-Projection Stereolithography: Processing the Nonprocessable",
abstract = "High-performance, all-aromatic, insoluble, engineering thermoplastic polyimides, such as pyromellitic dianhydride and 4,4′-oxydianiline (PMDA–ODA) (Kapton), exhibit exceptional thermal stability (up to ≈600 °C) and mechanical properties (Young's modulus exceeding 2 GPa). However, their thermal resistance, which is a consequence of the all-aromatic molecular structure, prohibits processing using conventional techniques. Previous reports describe an energy-intensive sintering technique as an alternative technique for processing polyimides with limited resolution and part fidelity. This study demonstrates the unprecedented 3D printing of PMDA–ODA using mask-projection stereolithography, and the preparation of high-resolution 3D structures without sacrificing bulk material properties. Synthesis of a soluble precursor polymer containing photo-crosslinkable acrylate groups enables light-induced, chemical crosslinking for spatial control in the gel state. Postprinting thermal treatment transforms the crosslinked precursor polymer to PMDA–ODA. The dimensional shrinkage is isotropic, and postprocessing preserves geometric integrity. Furthermore, large-area mask-projection scanning stereolithography demonstrates the scalability of 3D structures. These unique high-performance 3D structures offer potential in fields ranging from water filtration and gas separation to automotive and aerospace technologies.",
keywords = "3D printing, engineering polymers, mask-projection stereolithography, polyimide, thermoplastics",
author = "Maruti Hegde and Viswanath Meenakshisundaram and Nicholas Chartrain and Susheel Sekhar and Danesh Tafti and Williams, {Christopher B.} and Long, {Timothy Edward}",
year = "2017",
month = "8",
day = "18",
doi = "10.1002/adma.201701240",
language = "English",
volume = "29",
journal = "Advanced Materials",
issn = "0935-9648",
publisher = "Wiley-VCH Verlag",
number = "31",

}

TY - JOUR

T1 - 3D Printing All-Aromatic Polyimides using Mask-Projection Stereolithography

T2 - Processing the Nonprocessable

AU - Hegde, Maruti

AU - Meenakshisundaram, Viswanath

AU - Chartrain, Nicholas

AU - Sekhar, Susheel

AU - Tafti, Danesh

AU - Williams, Christopher B.

AU - Long, Timothy Edward

PY - 2017/8/18

Y1 - 2017/8/18

N2 - High-performance, all-aromatic, insoluble, engineering thermoplastic polyimides, such as pyromellitic dianhydride and 4,4′-oxydianiline (PMDA–ODA) (Kapton), exhibit exceptional thermal stability (up to ≈600 °C) and mechanical properties (Young's modulus exceeding 2 GPa). However, their thermal resistance, which is a consequence of the all-aromatic molecular structure, prohibits processing using conventional techniques. Previous reports describe an energy-intensive sintering technique as an alternative technique for processing polyimides with limited resolution and part fidelity. This study demonstrates the unprecedented 3D printing of PMDA–ODA using mask-projection stereolithography, and the preparation of high-resolution 3D structures without sacrificing bulk material properties. Synthesis of a soluble precursor polymer containing photo-crosslinkable acrylate groups enables light-induced, chemical crosslinking for spatial control in the gel state. Postprinting thermal treatment transforms the crosslinked precursor polymer to PMDA–ODA. The dimensional shrinkage is isotropic, and postprocessing preserves geometric integrity. Furthermore, large-area mask-projection scanning stereolithography demonstrates the scalability of 3D structures. These unique high-performance 3D structures offer potential in fields ranging from water filtration and gas separation to automotive and aerospace technologies.

AB - High-performance, all-aromatic, insoluble, engineering thermoplastic polyimides, such as pyromellitic dianhydride and 4,4′-oxydianiline (PMDA–ODA) (Kapton), exhibit exceptional thermal stability (up to ≈600 °C) and mechanical properties (Young's modulus exceeding 2 GPa). However, their thermal resistance, which is a consequence of the all-aromatic molecular structure, prohibits processing using conventional techniques. Previous reports describe an energy-intensive sintering technique as an alternative technique for processing polyimides with limited resolution and part fidelity. This study demonstrates the unprecedented 3D printing of PMDA–ODA using mask-projection stereolithography, and the preparation of high-resolution 3D structures without sacrificing bulk material properties. Synthesis of a soluble precursor polymer containing photo-crosslinkable acrylate groups enables light-induced, chemical crosslinking for spatial control in the gel state. Postprinting thermal treatment transforms the crosslinked precursor polymer to PMDA–ODA. The dimensional shrinkage is isotropic, and postprocessing preserves geometric integrity. Furthermore, large-area mask-projection scanning stereolithography demonstrates the scalability of 3D structures. These unique high-performance 3D structures offer potential in fields ranging from water filtration and gas separation to automotive and aerospace technologies.

KW - 3D printing

KW - engineering polymers

KW - mask-projection stereolithography

KW - polyimide

KW - thermoplastics

UR - http://www.scopus.com/inward/record.url?scp=85020492388&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85020492388&partnerID=8YFLogxK

U2 - 10.1002/adma.201701240

DO - 10.1002/adma.201701240

M3 - Article

AN - SCOPUS:85020492388

VL - 29

JO - Advanced Materials

JF - Advanced Materials

SN - 0935-9648

IS - 31

M1 - 1701240

ER -