FIELD: chemistry.
SUBSTANCE: invention can be used as structural material for heat insulation slabs for multiple purposes, as well as heat insulation material for sealing window or doorway openings and for heat insulating pipelines. The invention discloses a heat insulation composition which contains hard foamed polyurethane and filler - sol microspheres. The filler used in the composition is in form of sol microspheres which are modified with copolymers of (meth)acrylic acid derivatives - sodium salt, amide, methyl ether with different molecular weight - or γ-aminopropyl triethoxysilane, which provides affinity to the polymer matrix of the hard foamed polyurethane in amount of 5-40 wt %.
EFFECT: high flexural and compression strength, low moisture absorption while keeping the heat conduction coefficient at a low level, broader functionalities and high cost-effectiveness of the heat insulation composition.
2 dwg, 2 tbl, 8 ex
