Study on the Degradation of Optical Silicone Exposed to Harsh Environments
Abstract
:1. Introduction
2. Experimental Procedures
3. Results and Discussion
4. Conclusions
- (1)
- Silicone samples showed a great degree of stability against light exposures (both UV and blue light). A total of 3500 h of radiation at 100 °C did not result in any change in the optical characteristics of silicone samples.
- (2)
- Exposure to saline and high-temperature environmental conditions had major negative implications for the optical characteristics of the samples. Saline water exposure at 100 °C resulted in a significant reduction in the transmission of samples in the visible light range, reduction in the maximum radiant power at 450 nm, and a change in the color chromaticity values.
- (3)
- Saline water exposure at 100 °C changed the mechanical properties of silicone plates by making them more brittle.
Author Contributions
Funding
Conflicts of Interest
References
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Sample/Variables | Temperature (°C) | UV Light | Blue Light | Environment |
---|---|---|---|---|
#1 | 35 | 360 nm | - | Air |
#2 | 100 | - | 450 nm | Air |
#3 | 35 | - | - | Water (standard swimming pool water) |
#4 | 100 | - | - | Water (100% RH) |
#5 | 100 | - | - | Water (100% RH, 3 wt % Salt) |
Samples | x | y | z |
---|---|---|---|
As-received | 0.236 | 0.145 | 0.619 |
770 h | 0.241 | 0.151 | 0.610 |
1440 h | 0.246 | 0.161 | 0.573 |
3500 h | 0.251 | 0.167 | 0.582 |
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Yazdan Mehr, M.; Van Driel, W.; De Buyl, F.; Zhang, K. Study on the Degradation of Optical Silicone Exposed to Harsh Environments. Materials 2018, 11, 1305. https://doi.org/10.3390/ma11081305
Yazdan Mehr M, Van Driel W, De Buyl F, Zhang K. Study on the Degradation of Optical Silicone Exposed to Harsh Environments. Materials. 2018; 11(8):1305. https://doi.org/10.3390/ma11081305
Chicago/Turabian StyleYazdan Mehr, Maryam, Willem Van Driel, Francois De Buyl, and Kouchi Zhang. 2018. "Study on the Degradation of Optical Silicone Exposed to Harsh Environments" Materials 11, no. 8: 1305. https://doi.org/10.3390/ma11081305