The Weathering of Plastics Materials in the Tropics. 6. The Further Evaluation of a Solar Radiation Concentrating Device (EMMA) as a Means of Accelerating the Weathering of Plastics

reportActive / Technical Report | Accession Number: ADA109385 | Open PDF

Abstract:

This report is an account of a second trial conducted at Desert Sunshine Exposure Test Inc. using the facility of the EMMA and EMMAQUA machines which are reported to accelerate natural weathering. Low density polyethylene and polyacetal specimens were tested and no real acceleration factors could be found for the EMMA machines over natural 45 deg exposure. Author

Author(s):
No Author(s) Identified
Author Organization(s):
PROPELLANTS EXPLOSIVES AND ROCKET MOTORESTABLISHMENT WALTHAM ABBEY (UNITED KINGDOM)
Supplementary Note:
Includes errata sheet dated 1981. See also Report 5 dated Jan 80, AD-A092 105
Pagination:
0043

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DRIC-BR-80352
Monitor Series:
BR-80352, DRIC
 Subject Terms
Joint Capability Areas:
JCA_1_Force Support; JCA_3.2_Engagement; JCA_3_Force Application; JCA_1.2_Force Preparation; JCA_3.2.1_Kinetic Means; JCA_1.3_Human Capital Management; JCA_4.2.3_Manage Global Supplier Networks; JCA_4.2_Supply; JCA_1.3.1_Personnel and Family Support; JCA_1.2.5_Lessons Learned
Communities of Interest:
Weapons Technologies
Descriptor(s):
*PLASTICS, *DESERT TESTS, *SOLAR ULTRAVIOLET RADIATION, TENSILE STRENGTH, EXPOSURE(GENERAL), STRUCTURAL PROPERTIES, POLYMERS, COMPOSITE MATERIALS, IMPACT TESTS, TEST EQUIPMENT, BRITTLENESS, ENVIRONMENTAL TESTS, TROPICAL REGIONS, LOW DENSITY, DECOMPOSITION, ACCELERATED TESTING, WEATHERING, POLYETHYLENE
Field(s)/Group(s):
Plastics, Test Facilities, Equipment and Methods
Keyword(s):
POLYACETAL HOMOPOLYMER, EMMA(EQUATORIAL MOUNT WITH MIRRORS FOR ACCELERATION)
Report Date:
1981 Jan 01