Inorganic combustion inhibitor of polyphosphoric acid radical column supported hydrotalcite and method for preparing same
A technology of polyphosphate column and inorganic flame retardant, which is applied in the direction of fire retardant coatings, can solve the problems of deterioration of physical and mechanical properties of materials, difficulty in material processing, etc., to improve compatibility and dispersibility, less equipment investment, and source of raw materials. wide effect
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Embodiment 1
[0020] 1) Calcining the commercially available magnesium-aluminum hydrotalcite at 450°C for 1 hour, grinding it to less than 200 mesh, and the obtained product is a bimetallic oxide;
[0021] 2) Weigh 94.2 grams of potassium acetate, add water to prepare an aqueous solution with a concentration of 1.5 mol / L, then add 188.4 grams of bimetallic oxide, stir in a water bath at 40°C for 2 hours, filter, wash with water, and dry to obtain acetate intercalation water Talc pillared precursors;
[0022] 3) Weigh 100 grams of the acetate intercalated hydrotalcite pillar precursor obtained in step 2), add 20 grams of ammonium polyphosphate with a degree of polymerization of 10, mix, add a small amount of water to grind for 10 minutes, place in a water bath at 40°C for 2 hours, and filter , washed with water, and dried to obtain the product polyphosphate pillared hydrotalcite.
[0023] 4) Take the polyphosphate pillared hydrotalcite obtained in step 3), fully mix it according to the mass...
Embodiment 2
[0025] 1) Calcining the commercially available magnesium-aluminum hydrotalcite at 750°C for 5 hours, grinding it to less than 200 mesh, and the obtained product is a bimetallic oxide;
[0026] 2) Weigh 82.03 grams of sodium acetate, add water to prepare an aqueous solution with a concentration of 2 mol / L, then add 410.15 grams of bimetallic oxide, stir for 5 hours in a water bath at 80°C, filter and wash with water, and dry at a temperature of 90°C to obtain Acetate intercalated hydrotalcite pillar precursor;
[0027] 3) Weigh 100 grams of the acetate intercalated hydrotalcite pillar precursor obtained in step 2), add 80 grams of ammonium polyphosphate with a degree of polymerization of 20, mix, add a small amount of water to grind for 20 minutes, place in a water bath at 80°C for 5 hours, and filter , washed with water, and dried at 90°C to obtain the product polyphosphate pillared hydrotalcite.
[0028] 4) Take the polyphosphate pillared hydrotalcite obtained in step 3), fu...
Embodiment 3
[0030] 1) Calcining the commercially available magnesium-aluminum hydrotalcite at 500°C for 4 hours, grinding it to less than 200 mesh, and the obtained product is a bimetallic oxide;
[0031] 2) Weigh 77.08 grams of ammonium acetate, add water to prepare an aqueous solution with a concentration of 1.5 mol / L, then add 308.32 grams of double metal oxide, stir in a water bath at 60°C for 4 hours, filter, wash with water, and dry to obtain acetate intercalation water Talc pillared precursors;
[0032] 3) Weigh 100 grams of the acetate intercalated hydrotalcite pillar precursor obtained in step 2), add 30 grams of ammonium polyphosphate with a degree of polymerization of 15, mix, add a small amount of water to grind for 15 minutes, place in a water bath at 60°C for 4 hours, and filter , washed with water, and spray-dried to obtain the product polyphosphate pillared hydrotalcite.
[0033]4) Take 100 parts of PVC resin, 60 parts of dibutyl phthalate, 15 parts of titanium dioxide, 1...
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