Homogeneous non-combustible polyurethane foam heat insulating material and preparation method thereof
A technology of polyurethane foam, heat insulation and heat preservation, applied in the field of new materials, can solve the problems of difficult to realize industrial production, poor fireproof performance, etc., and achieve the effect of good mechanical strength, good heat insulation performance and high mechanical strength
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Embodiment 1
[0040] Flame retardant: by weight, take 140 parts of flame retardant (100 parts of red phosphorus, 40 parts of trimethyl phosphate);
[0041] Inorganic filler: in parts by weight, take 1020 parts of inorganic filler (940 parts of 150-mesh silica sand, 80 parts of 250-mesh perlite), and the loose bulk density of the inorganic filler is 1.6g / cm 3 .
[0042] Polyurethane rigid foaming material: in parts by weight, take the white material: 100 parts of polyether polyol (H4110, Red Polaroid, 60 parts; HP3202, Red Polaroid, 30 parts; HP3201, Red Polaroid, 10 parts) , 23 parts of blowing agent (10 parts of cyclopentane, 13 parts of n-pentane), 4.2 parts of catalyst (1.4 parts of pentamethyldimethylenetriamine, 1.8 parts of dimethylcyclohexylamine, 2,4,6 - 1.0 parts of tris(dimethylaminomethyl)phenol), 2.2 parts of silicone surfactant (AK8830, Meside), 1.5 parts of water; black material: 158 parts of polyphenyl polymethylene polyisocyanate (M50, BASF). The weight ratio of white mat...
Embodiment 2
[0046] Flame retardant: by weight, take 360 parts of flame retardant (200 parts of aluminum hydroxide, 100 parts of expanded graphite, 60 parts of trimethylol phosphine oxide);
[0047] Inorganic filler: in parts by weight, take 1840 parts of inorganic filler (1320 parts of 200-mesh quartz sand, 160 parts of 100-mesh montmorillonite, 360 parts of 400-mesh limestone), and the loose bulk density of the inorganic filler is 1.5g / cm 3 .
[0048] Polyurethane rigid foaming material: by weight, take the white material: 100 parts of polyether polyol (HP2502, 60 parts of Hongbaoli; HP3201, 40 parts of Hongbaoli), 34 parts of foaming agent (HFC-365mfc 14 parts, HFC-245fa 20 parts), 2.2 parts of catalyst (0.6 parts of N-methylmorpholine, 1.2 parts of dimethylbenzylamine, quaternary ammonium salt TMR-20.4 parts), 0.5 parts of silicone surfactant (Niax L- 5440, Momentive), 3.0 parts of water, mixed well; black material: 224 parts of polyphenyl polymethylene polyisocyanate (PM100, Wanhua...
Embodiment 3
[0052] Flame retardant: by weight, take 420 parts of flame retardant (200 parts of antimony trioxide, 160 parts of zinc borate, 40 parts of tricumyl phosphate, 20 parts of triphenyl phosphate);
[0053] Inorganic filler: in parts by weight, take 1460 parts of inorganic filler (1100 parts of 120-mesh slag, 290 parts of 300-mesh calcite, 70 parts of 1000-mesh diatomite), and the loose bulk density of the inorganic filler is 1.4g / cm 3 .
[0054] Polyurethane rigid foaming material: in parts by weight, take the white material: 80 parts of polyether polyol (H4110, Hongbaoli, 60 parts; HP3201, Hongbaoli, 20 parts), 20 parts of polyester polyol (PS -2502, Stepan), 26 parts of blowing agent (16 parts of cyclopentane, 10 parts of HFC-365mfc), 1.5 parts of catalyst (0.2 part of dibutyltin dilaurate, 0.8 part of dimethylcyclohexylamine, hexahydrotris 0.5 part of oxazine), 1.8 parts of silicone surfactant (B8486, Degussa), 2.0 parts of water, mixed well; black material: 185 parts of poly...
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