In situ cure monitoring of epoxy resins using fiber-optic Raman spectroscopy

1994 ◽  
Vol 53 (13) ◽  
pp. 1805-1812 ◽  
Author(s):  
R. E. Lyon ◽  
K. E. Chike ◽  
S. M. Angel
Keyword(s):  
Raman Spectroscopy ◽  
Epoxy Resins ◽  
Fiber Optic ◽  
Cure Monitoring

Fiber Optic Sensor Development for Real-Time In-Situ Epoxy Cure Monitoring

1997 ◽  
Vol 31 (1) ◽  
pp. 87-102 ◽  
Author(s):  
Y. M. Liu ◽  
C. Ganesh ◽  
J. P. H. Steele ◽  
J. E. Jones
Keyword(s):  
Real Time ◽  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Sensor Development ◽  
Cure Monitoring ◽  
Optic Sensor

Precise Determination of Percent Cure of Epoxide Polymers and Composites via Fiber-Optic Raman Spectroscopy and Multivariate Analysis

1997 ◽  
Vol 51 (2) ◽  
pp. 247-252 ◽  
Author(s):  
Jeffrey F. Aust ◽  
Karl S. Booksh ◽  
Christopher M. Stellman ◽  
Richard S. Parnas ◽  
Michael L. Myrick
Keyword(s):  
Raman Spectroscopy ◽  
Multivariate Analysis ◽  
Real Time ◽  
Fiber Optic ◽  
Precise Determination ◽  
Probe Design ◽  
Epoxide Polymers ◽  
Time Determination

A method for real-time determination of the percent cure of epoxies via in situ fiber-optic Raman spectroscopy has been developed. This method utilizes a probe design developed for real-time monitoring of polymer curing and multivariate analysis to interpret the data and determine percent cure. This method was demonstrated to be reliable to ±0.54% of cure in laboratory samples over a 50–99% cure range. A preliminary study measuring cure percentage in an industrial, glass-reinforced composite has been shown to be reliable to ±0.82% in the 40–90% cure range.

scholarly journals In-situ monitoring of the curing of epoxy resins by Raman spectroscopy

2009 ◽  
Vol 28 (1) ◽  
pp. 42-45 ◽  
Author(s):  
L. Merad ◽  
M. Cochez ◽  
S. Margueron ◽  
F. Jauchem ◽  
M. Ferriol ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Epoxy Resins ◽  
In Situ Monitoring

scholarly journals In-Situ Monitoring of the Curing of Epoxy Resins by Raman Spectroscopy

2007 ◽  
Author(s):  
L. Merad ◽  
M. Cochez ◽  
S. Margueron ◽  
F. Jauchem ◽  
M. Ferriol ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Epoxy Resins ◽  
In Situ Monitoring

An Experimental Study on the Process Monitoring of Resin Transfer Molded Composite Structures Using Fiber Optic Sensors

2012 ◽  
Vol 134 (4) ◽  
Author(s):  
Mehmet Yildiz ◽  
Nazli G. Ozdemir ◽  
Gokhan Bektas ◽  
Casey J. Keulen ◽  
Talha Boz ◽  
...  
Keyword(s):  
Process Monitoring ◽  
Composite Structures ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Fresnel Reflection ◽  
Cure Monitoring ◽  
Rtm Process ◽  
Fiber Reinforcements ◽  
Fbg Sensors

Research conducted on in situ process monitoring of resin transfer molded composites with fiber optic sensors is presented. A laboratory scale resin transfer molding (RTM) apparatus was designed and built with the capability of embedding fiber optic sensors and visually observing the resin filling process. Both fiber Bragg grating (FBG) and etched fiber (EF) sensors are embedded into glass fiber reinforcements in the RTM mold and used to monitor the resin flow front and cure. The cure cycle of the resin system utilized in this work is also studied using a Fresnel reflection refractometer (FRR) sensor. The results of this study show that both the FBG and EF sensors can be used efficiently for flow and cure monitoring of the RTM process. The experimental results of the EF and FRR sensors agree with those of the FBG sensors for cure monitoring.

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