Cable fireproof coating and preparation method thereof
A technology for fire-resistant coatings and cables, applied in fire-resistant coatings, polyester coatings, coatings, etc., can solve problems such as hindering wide application, general flame-retardant effect, and reduced flame-retardant durability, and achieve low cost, simple operation, and high efficiency. The effect of flame retardant performance
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Embodiment 1
[0038] (1) Preparation of carboxyl-containing chlorinated paraffin 42: Dissolve 20 g of chlorinated paraffin 42 in 200 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 30 g of potassium carbonate, and react at 55° C. for 30 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol, and the product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 42.
[0039] (2) Preparation of chlorinated paraffin 42 containing acid chloride: add 70mol carboxyl-containing chlorinated paraffin 42 to the reaction kettle, add 85mol phosphorus trichloride dropwise, stir and heat up to 50°C, react for 6h, cool to room temperature, and stand to separate Layer to obtain chlorinated paraffin 42 containing acid chloride.
[0040] (3) Preparation of isocyanurate-modified chlorinated paraffin 42: add 100mol tris(2-hydroxyethyl)isocyanurate and an appropriate amount of acid...
Embodiment 2
[0046] (1) Preparation of carboxyl-containing chlorinated paraffin 52: Dissolve 20 g of chlorinated paraffin 52 in 200 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 30 g of potassium carbonate, and react at 80° C. for 10 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol. The product was vacuum-dried at 100° C. for 5 h to obtain carboxyl-containing chlorinated paraffin 52.
[0047] (2) Preparation of chlorinated paraffin 52 containing acid chloride: add 70mol carboxyl-containing chlorinated paraffin 52 to the reaction kettle, add dropwise 85mol phosphorus trichloride, stir and heat up to 70°C, react for 4h, cool to room temperature, let stand to separate layer to obtain the chlorinated paraffin 52 containing the acid chloride.
[0048] (3) Preparation of isocyanurate-modified chlorinated paraffin 52: add 100mol tris(2-hydroxyethyl)isocyanurate and an appropriate amount of ...
Embodiment 3
[0054] (1) Preparation of carboxyl-containing chlorinated paraffin 70: Dissolve 20 g of chlorinated paraffin 52 in 200 mL of acetone, stir to dissolve, add 20 g of p-hydroxybenzoic acid and 30 g of potassium carbonate, and react at 65° C. for 24 h under nitrogen protection. After the reaction, the pH was adjusted to 3.0 with hydrochloric acid, and then extracted with ethanol, and the product was vacuum-dried at 100°C for 5 hours to obtain carboxyl-containing chlorinated paraffin 70.
[0055] (2) Preparation of chlorinated paraffin 70 containing acid chloride: add 70mol carboxyl-containing chlorinated paraffin 70 to the reaction kettle, add dropwise 85mol phosphorus trichloride, stir and heat up to 60°C, react for 5h, cool to room temperature, and stand to separate layer to obtain chlorinated paraffin 70 containing acid chloride.
[0056] (3) Preparation of isocyanurate-modified chlorinated paraffin 70: add 100mol tris (2-hydroxyethyl) isocyanurate and an appropriate amount of ...
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