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Monitoring of solidification induced strains in two resins used in photofabrication
- Source :
-
Materials & Design . Oct2009, Vol. 30 Issue 9, p3705-3712. 8p. - Publication Year :
- 2009
-
Abstract
- Abstract: In this work, measurements of in situ solidification and post-fabrication strains in two commercial stereolithography photopolymers are presented. The photopolymers examined in the present investigation are a multifunctional acrylate-based resin and an organic–inorganic polymer known as ORMOCER®, which have been used in single and two-photon stereolithography, respectively. The resulted solidification strain build up is monitored via the use of an embedded Fibre Bragg grating (FBG) sensor during photopolymers stepwise exposure to UV-light irradiation. Analysis of the recorded spectra demonstrate the development of high consolidation strains in both UV cured photopolymers as well as a significant increase of their magnitude after post-fabrication thermal treatment at 75°C. Based on the strain data from the utilized optical sensor, information on the degree of cure for one of the two photopolymers is also provided. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 02641275
- Volume :
- 30
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Materials & Design
- Publication Type :
- Academic Journal
- Accession number :
- 41582094
- Full Text :
- https://doi.org/10.1016/j.matdes.2009.02.010