Environment-friendly flame retardant and intumescent fireproof coating prepared therefrom
An environmentally friendly, flame retardant technology, applied in fireproof coatings, coatings, fibrous fillers, etc., can solve the problems of poor carbon quality, low loose carbon layer strength, low flame retardant efficiency, etc., to improve durability. performance, increase the degree of graphitization, and reduce the effect of surface polarity
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Embodiment 1
[0039] A kind of environmentally friendly flame retardant, its preparation method comprises the steps:
[0040] 1) Strip zirconium phosphate: In a 500ml four-necked flask, disperse 0.01mol zirconium phosphate and 300ml deionized water through mechanical stirring and ultrasonic action. Add butyl ammonium hydroxide solution (TBA concentration is 0.1mol / L) to the four-neck flask dropwise at a constant speed within 30min, continue to ultrasonically stir for 2h after dripping, then add 20ml of concentrated phosphoric acid with a concentration of 14.5mol / L within 30min Add it dropwise to the flask at a constant speed. After the reaction (2h), the mixed solution is centrifuged for solid-liquid separation to obtain a translucent gel precipitate and wash it with distilled water;
[0041] 2) Furfurylamine-coated zirconium phosphate: the product obtained in step 1) and 0.06mol furfurylamine were mechanically stirred at 40° C. for 24 hours, washed by centrifugation, and vacuum-dried at 80...
Embodiment 2
[0044] A kind of environmentally friendly flame retardant, its preparation method comprises the steps:
[0045] 1) Strip zirconium phosphate: In a 500ml four-necked flask, disperse 0.01mol zirconium phosphate and 300ml deionized water through mechanical stirring and ultrasonic action. Add butylammonium hydroxide solution (TBA concentration is 0.1mol / L) to the four-neck flask dropwise within 30min at a constant speed, continue to react for 2h after dropping, and then drop 20ml of concentrated phosphoric acid with a concentration of 14.5mol / L within 30min at a constant speed Add in the flask, after the reaction finishes (2h), carry out solid-liquid separation by centrifugation of mixed solution, obtain translucent gel precipitation and wash with distilled water;
[0046] 2) Furfurylamine-coated zirconium phosphate: the product obtained in step 1) and 0.03mol furfurylamine were mechanically stirred at 40°C for 24 hours, washed by centrifugation, and vacuum-dried at 80°C to obtain...
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