Preparation method of flame-retardant modified asphalt
A modified asphalt and modified technology, applied in building components, building insulation materials, buildings, etc., can solve the problem that the flame retardant performance cannot be further improved, and achieve good flame retardant effect, good heat insulation performance, and improved flame retardant performance. Effect
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example 1
[0021]Put chitosan and water in a No. 1 beaker at a mass ratio of 1:100, stir with a glass rod for 20 minutes, and let it swell for 5 hours. ℃, with a rotation speed of 500r / min, heat and stir to dissolve for 50min to obtain a chitosan solution; put polyethyleneimine and calcium chloride solution in a No. 2 beaker at a speed of 500r / min Under the condition of min, stir and mix for 50min to obtain the mixed material liquid, put diatomaceous earth and mixed material liquid in the No. 3 beaker according to the mass ratio of 1:20, and stir and mix for 40min under the condition of rotating speed of 600r / min, then filter. To obtain the primary treatment diatomite, put the primary treatment diatomite and toluene diisocyanate in a single-necked flask at a mass ratio of 1:20, stir and mix for 50 minutes at a rotating speed of 300r / min, and then filter to obtain the secondary treatment silicon For diatomaceous earth, put the diatomite and chitosan solution after secondary treatment into...
example 2
[0023] Put chitosan and water in a No. 1 beaker at a mass ratio of 1:100, stir with a glass rod for 20 minutes, and let it swell for 5 hours. ℃, with a rotation speed of 500r / min, heat and stir to dissolve for 50min to obtain a chitosan solution; put polyethyleneimine and calcium chloride solution in a No. 2 beaker at a speed of 500r / min Under the condition of min, stir and mix for 50min to obtain the mixed material liquid, put diatomaceous earth and mixed material liquid in the No. 3 beaker according to the mass ratio of 1:20, and stir and mix for 40min under the condition of rotating speed of 600r / min, then filter. To obtain the primary treatment diatomite, put the primary treatment diatomite and toluene diisocyanate in a single-necked flask at a mass ratio of 1:20, stir and mix for 50 minutes at a rotating speed of 300r / min, and then filter to obtain the secondary treatment silicon For diatomaceous earth, put the diatomite and chitosan solution after secondary treatment int...
example 3
[0025] Put chitosan and water in a No. 1 beaker at a mass ratio of 1:100, stir with a glass rod for 20 minutes, and let it swell for 5 hours. ℃, under the condition of rotating speed of 500r / min, heat and stir to dissolve for 50min to obtain chitosan liquid; in parts by weight, put 20 parts of carbon nanotubes, 60 parts of magnesium chloride solution, 10 parts of copper oxalate, and 10 parts of nanopowder into In the No. 5 beaker, place the No. 5 beaker in an ultrasonic disperser, under the condition of an ultrasonic frequency of 75kHz, mix and ultrasonicate for 60min, then add dropwise ammonia water with a mass fraction of 30% to the No. 5 beaker to adjust the pH to 8.9, Get No. 1 mixed solution; By weight, 30 parts of acrylonitrile, 8 parts of azobisisobutyronitrile, 8 parts of silicone resin, 8 parts of methyl methacrylate are placed in No. 6 beakers, and 6 parts Burn No. 1 in an ultrasonic disperser, and mix ultrasonically for 60 minutes at an ultrasonic frequency of 75kHz...
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