Laser induced instantaneous gelation

Aerogels for 3D printing

Shaukat Saeed, Rola M. Al-Sobaihi, Massimo F. Bertino, Lauren S. White, Khaled Saoud

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We present the synthesis of polymer cross-linked silica alcogels in a matter of seconds by illuminating the solution of TEOS, hexanedioldiacrylate, Eosin Y and amine with a laser beam (λ = 532 nm). The heat of polymerization triggers gelation instantly. We demonstrate printing of 3D letters on different substrates using this technique. The physical properties of the 3D printed samples are comparable to conventionally prepared cross-linked silica aerogels, i.e., shrinkage (10.4%), density (0.56 g cm-3), Young's modulus (81.3 MPa) and BET surface area (155.3 m2 g-1). An important aspect of this rapid gelation is that it allows 3D printing/lithography of reinforced silica aerogel material without using a mould.

Original languageEnglish
Pages (from-to)17606-17611
Number of pages6
JournalJournal of Materials Chemistry A
Volume3
Issue number34
DOIs
Publication statusPublished - 30 Jul 2015

Fingerprint

Aerogels
Gelation
Silicon Dioxide
Printing
Silica
Lasers
Eosine Yellowish-(YS)
Lithography
Amines
Laser beams
Polymers
Physical properties
Elastic moduli
Polymerization
Substrates

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Laser induced instantaneous gelation : Aerogels for 3D printing. / Saeed, Shaukat; Al-Sobaihi, Rola M.; Bertino, Massimo F.; White, Lauren S.; Saoud, Khaled.

In: Journal of Materials Chemistry A, Vol. 3, No. 34, 30.07.2015, p. 17606-17611.

Research output: Contribution to journalArticle

Saeed, S, Al-Sobaihi, RM, Bertino, MF, White, LS & Saoud, K 2015, 'Laser induced instantaneous gelation: Aerogels for 3D printing', Journal of Materials Chemistry A, vol. 3, no. 34, pp. 17606-17611. https://doi.org/10.1039/c5ta04215a
Saeed, Shaukat ; Al-Sobaihi, Rola M. ; Bertino, Massimo F. ; White, Lauren S. ; Saoud, Khaled. / Laser induced instantaneous gelation : Aerogels for 3D printing. In: Journal of Materials Chemistry A. 2015 ; Vol. 3, No. 34. pp. 17606-17611.
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