An environment-friendly fireproof composite coating
An environment-friendly, composite coating technology, used in fire-retardant coatings, epoxy resin coatings, starch coatings, etc., can solve the problems of difficult preservation of coatings, reduced flame retardant performance, and reduced heating process, and achieve solutions to low flame retardant performance, Improve the flame retardant performance and avoid the effect of spontaneous combustion
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Embodiment 1
[0024] Preparation of flame retardant composite epoxy resin, such as figure 1 As shown, the specific preparation process is as follows:
[0025] Step 1: Weigh 100g of red phosphorus and dissolve it in 2kg of water, heat up to 50-60°C after ultrasonic dispersion for 10-15min, add 3.7g of sodium tripolyphosphate, stir and mix evenly, add 25g of anhydrous aluminum trichloride to it, and ultrasonically Stir for 2-3min, then add 10g of sodium hydroxide solid to it, adjust the pH of the solution to 8-9 with a 0.01% sodium hydroxide solution while stirring, react for 40-50min and filter to obtain the first layer of coated red phosphorus ;
[0026] Step 2: Add 25.6g of bisphenol A epoxy resin into the reaction vessel, then add 560mL of ethanol and 80g of the first layer of coated red phosphorus prepared in step 1, stir and mix evenly, heat up to 60°C, and pour into the reaction vessel while stirring Add 160 g of ethylenediamine solution dropwise, after the dropwise addition is compl...
Embodiment 2
[0028] Preparation of flame retardant composite epoxy resin, such as figure 1 As shown, the specific preparation process is as follows:
[0029] Step 1: Weigh 100g of red phosphorus and dissolve it in 2.2kg of water, heat up to 50-60°C after ultrasonic dispersion for 10-15min, add 3.9g of sodium tripolyphosphate, stir and mix well, then add 25g of anhydrous aluminum trichloride to it, Stir ultrasonically for 2-3 minutes, then add 10 g of solid sodium hydroxide to it, adjust the pH of the solution to 8-9 with 0.01% sodium hydroxide solution while stirring, react for 40-50 minutes and filter to obtain the first layer of coated red phosphorus;
[0030] Step 2: Add 28g of bisphenol A epoxy resin into the reaction vessel, then add 800mL of ethanol and 80g of the first-layer coated red phosphorus prepared in step 1, stir and mix evenly, heat up to 60°C, and pour into it while stirring Add 240g of ethylenediamine solution dropwise, after the addition is complete, stir and react at ...
Embodiment 3
[0032] An environment-friendly fireproof composite coating, the specific preparation process is as follows:
[0033] In the first step, dissolve 2.3kg of acrylic emulsion in 5kg of ethanol, then add 0.4kg of ammonium persulfate to it, mix well and heat up to 80-90°C, then add 3.2kg of vinyltrimethoxysilane to it, and react at constant temperature 4-5h, obtain the silylated acrylic resin liquid, and the prepared silylated acrylic resin liquid contains a large amount of hydroxyl groups;
[0034] In the second step, add 0.7kg of the flame-retardant composite epoxy resin prepared in Example 1 to the silylated acrylic resin liquid prepared in the first step, stir and mix evenly, heat up to 70-75°C, and then add it dropwise Add 1.3kg of glutaraldehyde solution, after the addition is complete, stir and react at a constant temperature for 3-5 hours to obtain a viscous flame-retardant resin glue;
[0035] The third step is to dissolve 0.09kg of gas-phase corrosion inhibitor in 1.5kg o...
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