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Products of the Oxidative Thermal Degradation of Mine Stopping and Mine Reinforcing Materials.

Authors
Paciorek-KL; Kratzer-RH; Nakahara-JH; Ahmed-SR
Source
NTIS: PB 87-191854 :133 pages
Link
NIOSHTIC No.
10005700
Abstract
The primary objective of this program was to determine the toxic fume and fire hazard of materials used in the construction of mine stoppings and in the sealing and reinforcing of mine ribs and roofs. The materials investigated were silicone, phenolic, and isocyanate- based rigid foams, as well as epoxy and acrylate mine sealants. Of the rigid foams tests, the x-156 urethane foam presented the greatest toxic hazard based on toxic load values, and hydrogen chloride was the main toxic species evolved by this foam. In none of the isocyanate-based compositions was hydrogen cyanide the major component, but its contribution increased with temperature. Of the two mine sealants tested, the latex acrylic coating presented the greater toxic hazard; acetic acid was the main toxic species evolved.
Publication Date
19830101
Document Type
CP; Final Contract Report;
Fiscal Year
1983
NTIS Accession No.
PB87-191854
NTIS Price
A08
Identifying No.
OFR 24-87
NIOSH Division
PRC;
Source Name
NTIS: PB 87-191854
Performing Organization
Ultrasystems, Inc.
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