Thermal And Gamma Radiation Behavior Of Dyed Nomex Yarns

Item

Title
Thermal And Gamma Radiation Behavior Of Dyed Nomex Yarns
Date
1964
Index Abstract
Not Available
Photo Quality
Not Needed
Report Number
ML TDR 64-77
Creator
McGrath, Joyce C.
Corporate Author
Air Force Materials Lab Wright-Patterson AFB Ohio
Laboratory
AF Materials Laboratory
Extent
22
Identifier
AD0601573
Access Rights
OTS
Distribution Classification
1
Contract
Laboratory Research - No Contract
DoD Project
7320
DoD Task
732001
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Distribution Conflict
No
Abstract
This program involved a comparative study of natural and dyed 100-denier yarns of Nomex (a high temperature resistant fiber formerly known as HT-1) was made to determine if the inclusion of color in the solution before fiber formation changes or affects the strength or temperature resistant properties of the yarns after exposure to temperatures up to 600F and/or gamma radiation. A variation in data was obtained between the dyed yarns and the natural color yarns; however this is believed due to a variation in the yarns and not the color process. The color sealed yarns were furnished in very small experimental quantities with zero twist while the natural yarns were furnished from a contract item and had producer's twist. At the higher temperatures, all the yarns had a tendency to become somewhat brittle and fray out. Elongation properties were more readily affected by high temperature and/or gamma radiation than the strength properties. All data obtained for the color sealed yarns, after exposure to high temperature and/or gamma radiation, indicates that the color sealing process has not adversely affected the strength and high temperature resistant characteristics of the Nomex yarns.
Report Availability
Full text available
Date Issued
1964-04
Provenance
Lockheed Martin Missiles & Fire Control
Type
report
Format
1 online resource
Media
MLTDR64-077.pdf