FIELD: protection of substrate against jet flame or hyperthermal conditions.
SUBSTANCE: proposed system includes two layers of thermal protective compositions: lower layer is made from active fireproof material at thickness of 1 to 25 mm and upper layer is made from ablative fireproof material at thickness of 1 to 25 mm which forms matrix with open cells when it is acted on by flame or another hyperthermal condition, thus admitting the gases from lower layer to surrounding medium; upper layer contains approximately 7 to 40 mass-% of heat-resistant fillers and approximately 5 to 30 mass-% of foaming agent. Provision is made for reinforcing the system with screen or fabric.
EFFECT: enhanced efficiency of protection of substrate under hyperthermal conditions.
54 cl, 3 tbl, 4 ex
| Title | Year | Author | Number |
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|
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| COATING INTUMESCENT COMPOSITION | 2014 |
|
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| FIRE-RETARDANT INTUMESCENT COMPOSITION | 2021 |
|
RU2763727C1 |
