Premium
Polymer‐Bonded Coloured Smoke Compositions
Author(s) -
Lessard P.,
Couture G.
Publication year - 1988
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.19880130207
Subject(s) - smoke , prepolymer , materials science , polybutadiene , polymer , composite material , casting , polymer science , polyurethane , chemical engineering , organic chemistry , chemistry , copolymer , engineering
Polymer‐bonded smoke compositions offers numerous advantages over conventional pressed smoke mixtures such as improved mechanical properties and safety in handling. The Defense Research Establishment Valcartier (DREV) has developed pour‐castable coloured smoke compositions using a well known hydroxy‐terminated polybutadiene prepolymer cured with a commercially available diisocyanate. These smoke formulations consist of ingredients typically found in pressed powder mix, but dispersed in a polymeric binder. A granulated dye is utilized to provide the low viscosities required for pour‐casting. The necessary ingredients and processing techniques as well as the properties and inherent advantages of such compositions are described.