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Title: Post-print UV curing method for improving the mechanical properties of prototypes derived from two-photon lithography [A post-print UV curing method for improving the mechanical properties of prototypes derived from two-photon polymerization]

Journal Article · · Optics Express
DOI:https://doi.org/10.1364/OE.24.027077· OSTI ID:1342021
 [1];  [1];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Here, two photon polymerization (TPP) is a precise, reliable, and increasingly popular technique for rapid prototyping of micro-scale parts with sub-micron resolution. The materials of choice underlying this process are predominately acrylic resins cross-linked via free-radical polymerization. Due to the nature of the printing process, the derived parts are only partially cured and the corresponding mechanical properties, i.e. modulus and ultimate strength, are lower than if the material were cross-linked to the maximum extent. Herein, post-print curing via UV-driven radical generation, is demonstrated to increase the overall degree of cross-linking of low density, TPP-derived structures.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1342021
Report Number(s):
LLNL-JRNL-702799; OPEXFF
Journal Information:
Optics Express, Vol. 24, Issue 24; ISSN 1094-4087
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 62 works
Citation information provided by
Web of Science

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Scaling‐Up of Nano‐Architected Microstructures: A Mechanical Assessment journal September 2019
Direct Laser Writing of Low-Density Interdigitated Foams for Plasma Drive Shaping journal September 2017
Nanolattices: An Emerging Class of Mechanical Metamaterials journal September 2017
Programmable Mechanical Properties of Two‐Photon Polymerized Materials: From Nanowires to Bulk journal June 2019
Structured Optical Materials Controlled by Light journal May 2018
3D Printed Photoresponsive Materials for Photonics journal March 2019
Enabling direct laser writing of cellulose-based submicron architectures journal August 2018
Optical performance and radiation stability of polymer X-ray refractive nano-lenses journal April 2019
Scalable submicrometer additive manufacturing journal October 2019
Optical fiber micro-connector with nanometer positioning precision for rapid prototyping of photonic devices journal January 2018
Nanolattices - An Emerging Class of Mechanical Metamaterials journalarticle January 2017
Optical performance and radiation stability of polymer X-ray refractive nano-lenses text January 2019
Structured Optical Materials Controlled by Light text January 2018