Microtruss structures with enhanced elasticity fabricated through visible light photocuring

Hari Nanthakumar, Fu Hao Chen, Saied Biria, Ian D. Hosein

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We report on the fabrication of an open cellular solid structure using visible light photocuring in combination with light-induced self-writing. A visible light sensitive photopolymer is irradiated with multiple arrays of microscale optical beams, which are generated from LEDs. These beams undergo self-trapping and elicit the inscription of microscale, solid struts into the medium. This process creates a structure consisting of multiple, intersecting struts that form a microtruss structure. Such structures retain their elasticity at higher temperatures as compared to a bulk film of the same thickness. This is the first demonstration of visible light photocuring of photopolymers into a microtruss structure, as well as investigation into their elastic properties under tension.

Original languageEnglish (US)
Pages (from-to)2194-2196
Number of pages3
JournalResults in Physics
Volume7
DOIs
StatePublished - 2017

Keywords

  • Cellular solids
  • Microstructures
  • Polymers
  • Self-trapping

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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