Cited by 44Additive Manufacturing and 3D Printing TechnologiesGraphite, nuclear technology, radiation studiesCarbon Nanotubes in Composites

Additive Manufacturing of Carbon Using Commodity Polypropylene

Smith, Paul, Obando, Alejandro Guillen, Griffin, Anthony, Robertson, Mark, Bounds, Ethan, Qiang, Zhe·2023·Advanced Materials

Abstract

Carbon materials are essential to the development of modern society with indispensable use in various applications, such as energy storage and high‐performance composites. Despite great progress, on‐demand carbon manufacturing with control over 3D macroscopic configuration is still an intractable challenge, hindering their direct use in many areas requiring structured materials and products. This work introduces a simple and scalable method to generate complex, large‐scale carbon structures using easily accessible materials and technologies. 3D‐printed, commercial polypropylene (PP) parts can be thermally stabilized through cracking‐facilitated diffusion and crosslinking. The newly elucidated mechanism from this work allows thick PP parts to yield carbonaceous products with complex structures through a subsequent pyrolysis step. The approach for enabling PP‐to‐carbon conversion has consistent product yield and controlled dimensional shrinkage. Under optimized processing conditions, these PP‐derived carbons exhibit robust mechanical properties and excellent joule heating performance, demonstrated by their versatile use as heating elements. Furthermore, this process can be extended to recycled PP, enabling the conversion of waste plastic materials to value‐added products. This work provides an innovative approach to create structured carbon materials with direct access to complex geometry, which can be transformative to, and broadly benefit, many important technological applications.

Integrity signals

Registry

Crossref · 10.1002/adma.202208029

Cites

79 of 79 references verified0 citation errors · 0 not checkable

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  • Smith and colleagues developed a simple and scalable method to produce complex structured carbon from commodity polypropylene.

    “Smith and colleagues developed a simple and scalable method to produce complex structured carbon from commodity PP (Fig. 8c) [104] .”
  • After carbonization, a high carbon recovery rate of up to 62 wt% was achieved.

    “After carbonization, a high carbon recovery rate of up to 62 wt% was achieved.”
  • The honeycomb-like carbon structure, despite containing crack defects, exhibits exceptional mechanical strength, with load-bearing capacity per unit density exceeding that of the precursor by over 5,300-fold.

    “Performance characterization demonstrated that this honeycomb-like carbon structure, despite containing crack defects, exhibits exceptional mechanical strength, with a load-bearing capacity per unit density exceeding that of the precursor by over 5,300-fold.”
  • The honeycomb-like carbon structure also possesses rapid Joule response characteristics.

    “It also possesses rapid joule response characteristics.”
  • The 3D printing-derived method can be applied to the production of various carbon materials with complex structures.

    “This method can be applied to the production of various carbon materials with complex structures.”

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Authors
Smith, P., Obando, A. G., Griffin, A., Robertson, M., Bounds, E., & Qiang, Z.
Affiliations
  • University of Southern Mississippi (US)
  • School of Polymer Science and Engineering The University of Southern Mississippi 118 College Drive Hattiesburg MS 39406 USA
Corresponding author
Qiang, Zhe
Venue
Advanced Materials
Publisher
Wiley
Published
2023-03-17
Volume
35
Issue
17
Pages
e2208029-e2208029
ISSN
  • 0935-9648 (ISSN-L)
  • 1521-4095
OpenAlex
W4319812815
Cited by
42
References
84
Citations by year
2026: 7 · 2025: 16 · 2024: 12 · 2023: 7
FWCI
3.04
Type
journal article
Language
en
Open access
closed
Locations
  • Advanced Materials (publishedVersion)
  • PubMed (publishedVersion)
  • Aquila Digital Community (University of Southern Mississippi) (submittedVersion)
Funders
University of Southern Mississippi
Topics
  • Physical Sciences › Engineering › Automotive Engineering › Additive Manufacturing and 3D Printing Technologies
  • Physical Sciences › Materials Science › Materials Chemistry › Graphite, nuclear technology, radiation studies
  • Physical Sciences › Materials Science › Materials Chemistry › Carbon Nanotubes in Composites
Keywords
pyrolysis, crosslinking, Joule heating, waste plastic recycling, dimensional shrinkage, heating elements

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