METHOD FOR PREPARING COLLOID PASTE Russian patent published in 2017 - IPC C06B45/06 C06B33/02 C06D5/00 C06B21/00 

FIELD: chemistry.

SUBSTANCE: invention relates to the production of dispersed polymeric composite materials, for example, charges of energy condensed systems (ECS) - mixed solid fuels, pyrotechnic compositions, etc. Colloidal paste based on pyrophoric aluminium powders with particle sizes less than 1 micron is produced by stirring the metallic particles in the inert gas medium with a non-aqueous dispersion medium based on liquid-viscous material by stirring the surfactant and the lyophobic liquid-viscous material. The metal powder is dispensed in portions into a continuously stirred mixture until a sedimentation-resistant non-pyrophoric paste with evenly distributed metal particles is produced. In the preparation of colloid paste, the quality of pyrophoric metal powders of a spherical shape with a particle size of less than 1 micron is retained, and agglomerates in the starting powder are destroyed.

EFFECT: method allows to apply binder components as dispersion media comprising a polymeric matrix of the energy condensed systems, and to achieve the maximum degree of filling colloidal pastes with the dispersed phase.

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