DEVELOPMENT OF AN INORGANIC PHOTOTROPIC SYSTEM FOR FLASHBLINDNESS PROTECTION

reportActive / Technical Report | Accession Number: AD0639701 | Open PDF

Abstract:

The report presents the details of a study made to determine the feasibility of using films containing one or more heteropoly acids for possible protection against flashblindness. Phosphomolybdic, phosphovanadomolybdic, phosphotungstic, silicotungstic, and silicomolybdic acids were evaluated. Methods for the preparation and purification of heteropoly acids in general are given. Also given are details for the preparation and purification of specific compounds potassium-arseno-12-molybdate, phospho-18-molybdic acid, arseno-12- molybdic acid, purpureophospho-12-vanadic acid, and borotungstic acid. Films for evaluating the photochromic response were prepared by centrifugally spinning a thin film of acid-resin solution on a polyester substrate and evaporating the solvent. Photochromic response and capabilities were determined by 1 exposing the films to a xenon flash, an ultraviolet lamp, and a xenon-mercury arc and 2 measuring the optical transmission or density before and after exposure. The response of several films, particularly phosphomolybdic acid in polyvinyl acetate which changed from an optical density of 0.07 to a density of 3.4, indicates that further research in this area is warranted. Also, since several of the films were somewhat heat sensitive, a study of different resins in indicated.

Author(s):
Marks, Alvin M.
Author Organization(s):
MARKS POLARIZED CORP WHITESTONE NY
Descriptive Note:
Technical rept.
Pagination:
0052

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
USA-NLABS-TR-67-2-CM, C/OM-22
Contract/Grant Number(s):
DA-19-129-AMC-158(N)
Project Number(s):
DA-1K6-43303-D547
Monitor Series:
TR-67-2-CM, 22, C/OM
 Subject Terms
Joint Capability Areas:
JCA_6_Net Centric; JCA_6.3.3_Spectrum Management; JCA_6.1_Information Transport; JCA_6.3_Net Management; JCA_5_Command and Control; JCA_1_Force Support; JCA_3.2_Engagement; JCA_3_Force Application; JCA_5.3_Planning; JCA_3.2.1_Kinetic Means; JCA_1.2.5_Lessons Learned; JCA_1.3_Human Capital Management; JCA_6.4.1_Secure Information Exchange; JCA_1.2_Force Preparation; JCA_1.3.2_Personnel Management
Modernization Areas:
Directed Energy
Communities of Interest:
Advanced Electronics
Descriptor(s):
*FLASHBLINDNESS, *INORGANIC ACIDS, *PHOTOCHROMISM, ARSENIC COMPOUNDS, BORON COMPOUNDS, CHROMATOGRAPHIC ANALYSIS, FILMS, MOLYBDATES, MOLYBDIC ACIDS, OPTICAL PROPERTIES, POTASSIUM COMPOUNDS, TUNGSTATES, VANADATES
Field(s)/Group(s):
Inorganic Chemistry, Radiation and Nuclear Chemistry, Protective Equipment
Keyword(s):
HETEROPOLY ACIDS, PHOTOTROPIC MATERIALS
Report Date:
1966 Jul 01