Process Control Analyzer for High Elastic Modulus Composites

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: DASG60-02-P-0156
Agency Tracking Number: 02-0167
Amount: $69,996.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
87 Church Street, East Hartford, CT, 06108
DUNS: 076890222
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Stuart Farquharson
 (860) 528-9806
Business Contact
 Stuart Farquharson
Title: President
Phone: (860) 528-9806
Research Institution
"The overall goal of this proposed program is to develop fiber optic Raman spectroscopy as an on-line analyzer capable of optimizing the mechanical properties of composites during manufacture. Phase I will demonstrate feasibility by developingrelationships between reaction mechanisms measured by Raman spectroscopy and mechanical properties measured by rheology for epoxy resin as a model system, with a focus on glass transition temperature and elastic modulus. This will be accomplished by 1)measuring during-cure molecular properties that correspond to specific cure mechanisms, associated rate constants, and extent-of-cure by Raman spectroscopy, 2) measuring post-cure macroscopic properties that correspond to glass transition temperature andelastic modulus by dynamic mechanical methods, and 3) performing simultaneous Raman spectral and shear moduli measurements in a parallel-plate rheometer to link the in-cure molecular to post-cure macroscopic properties.Phase II will employ the Phase I relationships to control composite manufacture devices and composite properties. Measurements will be performed in an oven used to cure filament wound parts, an autoclave, and a resin transfer molding device. Phase IIwill expand the relationships developed in Phase I for epoxy resins to include polyimides, polyesters, and cyanate esters. Phase III will develop an expert system based on customer product base. In addition to military applications, th

* Information listed above is at the time of submission. *

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