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Phenol-Formaldehyde Resin for Optical-Chemical Temperature Sensing
Steven Claucherty1, Hirotaka Sakaue2
1Department of Aerospace and Mechanical Engineering, University of Notre Dame, Hessert Laboratory, Notre Dame, IN 46556, USA. sclauche@nd.edu.
Sensors (Basel, Switzerland)
|June 1, 2018
Summary
Phenol-formaldehyde (PF) resin shows promise as an optical temperature sensor. This naturally luminescent material offers an alternative to traditional temperature-sensitive paints for global temperature mapping.
Area of Science:
- Materials Science
- Optical Sensing
- Polymer Chemistry
Background:
- Optical luminescent sensors enable global surface temperature measurements, valuable for computational model validation and complex geometry analysis.
- Temperature-sensitive paint (TSP) offers a chemical approach for global temperature mapping but faces reliability challenges.
- A need exists for sensors with wide temperature sensitivity ranges to accommodate diverse testing conditions.
Purpose of the Study:
- To investigate the potential of phenol-formaldehyde (PF) resin as a naturally luminescent optical temperature sensor.
- To evaluate the temperature sensitivity of PF resin samples utilizing different binder materials.
- To assess PF resin as a viable alternative to conventional temperature-sensitive materials.
Main Methods:
- Static tests were performed on various phenol-formaldehyde (PF) resin samples.
- Two distinct binder materials, cloth and paper, were employed to enhance material strength.
- Luminescence-based optical temperature measurements were conducted on the prepared samples.
Main Results:
- Phenol-formaldehyde (PF) resin demonstrated measurable temperature sensitivities.
- The material exhibited temperature sensitivities reaching up to -0.8%/K.
- The study confirmed the luminescent properties of PF resin are responsive to temperature changes.
Conclusions:
- Phenol-formaldehyde (PF) resin is a viable candidate for optical temperature sensing applications.
- The natural luminescence of PF resin offers an alternative to chemical sensor coatings.
- Further development could enhance the utility of PF resin-based sensors for broad temperature gradient testing.
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