Phosphorus-nitrogen-boron compounded system-containing timber fire retardant
A flame retardant and system technology, applied in wood treatment, wood impregnation, wood impregnation, etc., can solve the problems of poor compatibility, large amount of addition, adverse effects, etc., and achieve low hygroscopicity, simple preparation process, and dimensional stability convenient effect
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[0011] The technical solutions of the present invention will be further described below in conjunction with specific preferred embodiments.
[0012] A kind of wood flame retardant containing phosphorus, nitrogen and boron compound system, its components are proportioned by mass percentage: phosphoric acid 33%, dicyandiamide 15%, boric acid 15%, triphenyl phosphate 15%, aluminum sulfate 10% , Ammonium molybdate 8%, Triethanolamine 3%, Pentaerythritol 1%. Wherein, the mass percent concentration of the phosphoric acid is 75%-85%.
[0013] Its preparation method is as follows: (1), weighing each component according to the mass percentage ratio; (2), mixing phosphoric acid and dicyandiamide, reacting at 90°C-130°C for 0.5-2 hours, and waiting for complete reaction and After converting into ureidophosphate, cool to room temperature, add boron compound, triphenyl phosphate, aluminum sulfate, ammonium molybdate, triethanolamine and pentaerythritol, mix well, then dry, crush and sieve...
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