Gas generating agent of fire-extinguishing device and preparation method thereof
A technology of fire extinguishing device and gas generating agent, which is applied in the direction of fire prevention equipment, offensive equipment, climate sustainability, etc. It can solve problems such as unstable pressure of fire extinguishers, unstable gas pressure, and small gas production of gas generating agents, and achieve gas pressure The effect of stability, large jet airflow and long spray distance
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Embodiment 1
[0026] S101. Dissolving 7% of the silicone-modified phenolic resin in ethanol by weight percentage to prepare a phenolic resin solution with a mass concentration of 50%;
[0027] S102. Pulverize 62% of potassium nitrate, 20% of melamine, 7% of azodimethylamide, 2.5% of basic magnesium carbonate, and 1.5% of potassium carbonate to 100 mesh, and stir and mix in a V-type mixer for 60 minutes to obtain a mixture material;
[0028] S103. Add the phenolic resin solution to the mixed material in S102, use a 20-mesh screen to granulate, and place the granulated material in a drying oven at 50°C and a relative humidity not higher than 20% to dry until the water content of the material is 1%;
[0029] S104, pressing the dried material in S103 into a cylindrical driving block under a pressure of 8 MPa. Install this drive block in the fire extinguisher, when the drive is about to be ignited, gas will be generated, the pressure inside the fire extinguisher will increase, the gas will gen...
Embodiment 2
[0031] S101. Dissolving 7% of the silicone-modified phenolic resin in ethanol by weight percentage to prepare a phenolic resin solution with a mass concentration of 45%;
[0032] S102. Pulverize 63% of potassium nitrate, 18% of melamine, 8% of azodimethylamide, 2.5% of basic magnesium carbonate, and 1.5% of zinc carbonate to 100 mesh, and stir and mix in a V-type mixer for 55 minutes to obtain a mixture material;
[0033] S103. Add the phenolic resin solution to the mixed material in S102, use a 20-mesh screen to granulate, and place the granulated material in a drying oven at 45° C. and a relative humidity not higher than 20% to dry until the water content of the material is 1%;
[0034] S104, pressing the dried material in S103 into a cylindrical driving block under a pressure of 7 MPa. Install this drive block in the fire extinguisher, when the drive is about to be ignited, gas will be generated, the pressure inside the fire extinguisher will increase, the gas will genera...
Embodiment 3
[0036] S101, by weight percentage, 8% organic silicon modified phenolic resin is dissolved in ethanol to make a phenolic resin solution with a mass concentration of 50%;
[0037] S102. Pulverize 66% of potassium nitrate, 20% of melamine, 3.5% of azodimethylamide, 1.5% of basic magnesium carbonate, and 1% of manganese carbonate to 100 mesh, and stir and mix in a V-type mixer for 60 minutes to obtain a mixture material;
[0038] S103. Add the phenolic resin solution to the mixed material in S102, use a 20-mesh screen to granulate, and place the granulated material in a drying oven at 50°C and a relative humidity not higher than 20% to dry until the water content of the material is 1%;
[0039] S104, pressing the dried material in S103 into a cylindrical driving block under a pressure of 7 MPa. Install this drive block in the fire extinguisher, when the drive is about to be ignited, gas will be generated, the pressure inside the fire extinguisher will increase, the gas will gen...
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