Method for preparing flame-retarding functional master batch by gel method
A functional masterbatch and gel method technology, applied in the field of flame retardants, can solve the problems of high energy consumption, high equipment cost, cumbersome process, etc., and achieve the effect of less equipment investment, low equipment cost and energy consumption, and simple process
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[0025] Example 1
[0026] A method for preparing flame retardant functional masterbatch by gel method, which is carried out in a reaction kettle with heating function, mechanical stirring and ultrasonic oscillator, firstly preparing microcapsule phosphorus-based flame retardant, and then preparing flame retardant functional masterbatch:
[0027] a, in the case of opening the mechanical stirring of the reaction kettle and the ultrasonic oscillator, the trioctyl phosphate is evenly dispersed in toluene, then KH550 is added, and the weight ratio of it to the trioctyl phosphate is 1:0.5, and then the triethyl phosphate is added. Amine in a weight ratio of 1:2 to KH550. After the reaction at 45°C for 2 hours, mechanical stirring and ultrasonication were stopped, cooled to room temperature, vacuum filtered, and vacuum dried at 0.05Pa and 75°C for 6 hours to obtain a powdered phosphorus-based flame retardant microcapsule flame retardant. .
[0028] b. Under the situation of turning...
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[0031] Example 2
[0032] The preparation of a flame retardant functional masterbatch prepared by a gel method is carried out in a reaction kettle with a heating function, mechanical stirring and an ultrasonic oscillator, firstly preparing a microcapsule phosphorus-based flame retardant, and then preparing a flame retardant functional masterbatch:
[0033] a, in the case of opening the mechanical stirring of the reactor and the ultrasonic oscillator, ammonium phosphate is uniformly dispersed in toluene, then KH560 is added, and the weight ratio of it and ammonium phosphate is 1:0.5, and then triethylamine is added, which is combined with ammonium phosphate. The weight ratio of KH560 is 1:3. After the reaction at 60°C for 3 hours, mechanical stirring and ultrasonication were stopped, cooled to room temperature, vacuum filtered, and vacuum dried at 0.07Pa and 75°C for 12 hours to obtain a powdered phosphorus-based flame retardant microcapsule flame retardant .
[0034] b. Unde...
Example Embodiment
[0035] Example 3
[0036] The preparation of a flame retardant functional masterbatch prepared by a gel method is carried out in a reaction kettle with a heating function, mechanical stirring and an ultrasonic oscillator, firstly preparing a microcapsule phosphorus-based flame retardant, and then preparing a flame retardant functional masterbatch:
[0037] a, in the case of opening the mechanical stirring of the reaction kettle and the ultrasonic oscillator, the ammonium dihydrogen phosphate is uniformly dispersed in the toluene and the xylene mixed solution, and then KH560 is added, and the weight ratio of it and the ammonium dihydrogen phosphate is 1:1.5 , and then add alkoxypyridine, and its weight ratio to KH570 is 1:4. After 4 hours of reaction at 75°C, mechanical stirring and ultrasonication were stopped, cooled to room temperature, vacuum filtered, and vacuum dried at 0.08Pa and 75°C for 24 hours to obtain a powdered phosphorus-based flame retardant microcapsule flame r...
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