Spray coating type fire-retardant antistatic polyurethane elastomer and preparation method thereof
A polyurethane elastomer, flame retardant and antistatic technology, used in polyurea/polyurethane coatings, coatings, fire retardant coatings, etc. problems, to achieve the effect of reducing the dosage, stabilizing the film-forming material, and avoiding the later precipitation
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Embodiment 1
[0028] The flame retardant antistatic spray polyurethane coating formula of this implementation case is as follows:
[0029] A component
[0030] Diphenylmethane diisocyanate MDI-50 50
[0031] Phosphorus-containing polyether polyol XP-1505 50
[0032] B component
[0033] 1′4 Butanediol 5
[0034] 4,4-Methylenebis(2,6-diethyl)aniline 15
[0035] Amino-terminated polyether T-5000 15
[0036] Amino-terminated polyether D-2000 40
[0037] Polyether 330N 20
[0038] Carbon nanotube paste (5%) 4
[0039] Leveling agent BYK306 1
[0040] Add 50 parts of phosphorus-containing flame-retardant polyol XP-1505 into the reactor, heat to 110°C and vacuumize for 3 hours, add 50 parts of MDI-50 after cooling to 30°C, and heat to 105°C for 3 hours to obtain semi-prepolymerized Material A component.
[0041] Add component B to the mixing tank one by one and stir evenly, then enter the sand mill and grind for 2.5 hours. Prepare the B component.
[0042] Components A and B are spray...
Embodiment 2
[0045] A component
[0046]Diphenylmethane diisocyanate MDI-50 30
[0047] Carbodiimide modified LMDI 15
[0048] Phosphorus-containing polyether polyol XP-1500 55
[0049] B component
[0050] Diaminodimethylthiochlorobenzene TX-2 8
[0051] 4,4-Methylenebis(2,6-diethyl)aniline 12
[0052] Amino-terminated polyether T-5000 15
[0053] Amino-terminated polyether D-2000 35
[0054] Polyether 551C 25
[0055] Carbon nanotube paste (5%) 5
[0056] BYK306 1
[0057] Triethylamine 0.1
[0058] Add 55 parts of flame-retardant polyether polyol XP-1505 into the reaction kettle, heat to 110°C for 3 hours, then add 30 parts of isocyanate MDI-50, 15 parts of carbodiimide liquefied MDI, and react at 105°C for 3 hours to obtain Semi-prepolymer A component.
[0059] Add component B to the mixing tank in turn and stir evenly, enter into a sand mill and grind for 2.5 hours to obtain component B.
[0060] Components A and B are sprayed with a high-pressure sprayer, and the two comp...
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