A Thermomechanical (TMA) Test Method for Evaluation of Cured Polymer Encapsulating Materials.

reportActive / Technical Report | Accession Number: ADA062602 | Open PDF

Abstract:

Thermomechanical Analysis TMA penetration test method was used to measure the softening point temperature of cured polymer encapsulating and coating materials. This test method was compared with the Shore Hardness Test Method by measuring softening temperature and hardness change that occurred in encapsulating materials exposed to humidities greater than 90 and temperatures above 82 C. The thermomechanical test method definitely offers a distinct advantage when evaluating the quality of a manufactured item. The TMA method is very rapid, requires a small amount of test specimen and is nondestructive to the part. Author

Author(s):
Knowles, Knowlen F.
Author Organization(s):
ARMY MISSILE RESEARCH AND DEVELOPMENT COMMAND REDSTONE ARSENAL AL ENGINEERING LAB
Descriptive Note:
Technical rept.,
Pagination:
0025

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DRDMI-E-78-23
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5.2_Understand; JCA_5.3_Planning
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*NONDESTRUCTIVE TESTING, *PLASTICS, THERMAL PROPERTIES, THERMOMECHANICS, TEST METHODS, TRANSITION TEMPERATURE, QUALITY CONTROL, ENCAPSULATION, CURING, HARDNESS, HUMIDITY, PLASTIC COATINGS, POTTING COMPOUNDS, SOFTENING
Field(s)/Group(s):
Plastics, Test Facilities, Equipment and Methods
Keyword(s):
*Thermomechanical analysis, Glass transition temperature
Report Date:
1978 Oct 05