Nonconsumable wood flame retardant and its preparation
A flame retardant and anti-loss technology, applied in the field of flame retardants, can solve the problems of excessive formaldehyde release and wood perishability
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Embodiment 1
[0023] Put 21.0Kg of formaldehyde, 4Kg of ammonia water, 4.0Kg of urea and 8.0Kg of melamine into the reaction kettle, raise the temperature to 80-90°C and keep it for 30-60min, cool down to 60-70°C, add ~0.5Kg of phosphoric acid, keep it warm for 30min, add poly Ethylene glycol 12.0Kg, after stirring for 20 minutes, adjust the pH value of the material to 5.0 with phosphoric acid or ammonia water, add 20Kg of water and 0.3Kg of urea to continue stirring, and discharge the material after the temperature is 40-50°C, which is the wood loss resistance type of the present invention. Fuel.
Embodiment 2
[0025] Put 23.0Kg of formaldehyde, 4Kg of ammonia water, 3.8Kg of urea and 10.0Kg of melamine into the reaction kettle, raise the temperature to 80-90°C and keep it for 30-60min, cool it down to 60-70°C, add ~0.5Kg of phosphoric acid, keep it warm for 30min, then add pentaerythritol 11.0Kg, after stirring for 20 minutes, adjust the pH value of the material to 5.0 with phosphoric acid or ammonia water, add 20Kg of water and 0.4Kg of urea to continue stirring, and discharge after the temperature is 40-50°C, which is the wood loss-resistant flame retardant of the present invention.
Embodiment 3
[0027] Put 26.5Kg of formaldehyde, 4Kg of ammonia water, 4.1Kg of urea and 4.5Kg of melamine into the reaction kettle, raise the temperature to 80-90°C and keep it for 30-60min, cool down to 60-70°C, add ~0.5mKg of phosphoric acid, keep it warm for 30min, add paste Refined 9.0Kg, after stirring for 20 minutes, adjust the pH value of the material to 5.0 with phosphoric acid or ammonia water, add 20Kg of water and 0.8Kg of urea to continue stirring, and discharge the material after the temperature is 40-50°C, which is the wood loss-resistant flame retardant of the present invention .
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