Flame-retardant rigid polyurethane foam heat insulation plate
A technology of rigid foam and thermal insulation boards, which is applied in the fields of solar water heater flame retardant thermal insulation, building walls, refrigerators, and cold storage. Achieve the effects of obvious oxygen index, avoid side reactions, and long storage period
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[0028] Example 1: A flame retardant polyurethane rigid foam insulation board without an additive flame retardant, comprising two components, A and B, and the B component is isocyanate. The A component is made up of the following raw materials by weight:
[0029] Flame retardant polyether polyol 15%
[0030] Amine ether polyol 5%
[0031] Ordinary polyether polyol 20%
[0032] Silicone oil 2%
[0033] TEDA liquid catalyst 0.5%
[0034] Trimerization catalyst PT301 2.5 %
[0035] Reactive flame retardant 15%
[0036] Blowing agent HCFC-141b 25%
[0037] Modified Expandable Graphite 15%
[0038] The surface of the modified expandable graphite in the component A contains hydroxyl and carboxyl reactive functional groups. As a preferred technical solution, the mesh number of the modified expandable graphite is 35-150 mesh, and the expansion ratio is 200-450 times.
[0039] The flame-retardant polyether polyol is a polyether polyol with bromine as a starting agent, the funct...
Example Embodiment
[0045] Example 2: A flame retardant polyurethane rigid foam insulation board without added flame retardant, comprising two components A and B, the B component is isocyanate, and the A component is composed of the following raw materials by weight composition:
[0046] Flame retardant polyester polyol 10%
[0047] Amine ether polyol 10%
[0048] Ordinary polyester polyol 35%
[0049] Silicone oil 2%
[0050] TEDA liquid catalyst 0.5%
[0051] Trimerization catalyst PT301 2.5 %
[0052] Reactive flame retardant 10%
[0053] Blowing agent HCFC-141b 20%
[0054] Modified Expandable Graphite 10%
[0055] The surface of the modified expandable graphite contains hydroxyl and carboxyl reactive functional groups. As a preferred technical solution, the mesh number of the modified expandable graphite is 35-150 mesh, and the expansion ratio is 200-450 times.
[0056] The flame-retardant polyester polyol is formed by a polycondensation reaction of halogen-containing polyol and pho...
Example Embodiment
[0061] Example 3: A flame retardant polyurethane rigid foam insulation board without added flame retardant, comprising two components A and B, the B component is isocyanate, and the A component is composed of the following raw materials by weight composition:
[0062] Flame retardant polyether polyol 18%
[0063] Amine ether polyol 12%
[0064] Ordinary polyester polyol 30%
[0065] Silicone oil 2%
[0066] TEDA liquid catalyst 0.5%
[0067] Trimerization catalyst PT301 2.5 %
[0068] Reactive flame retardant 5%
[0069] Blowing agent HCFC-141b 25%
[0070] Modified Expandable Graphite 5%
[0071] The surface of the modified expandable graphite contains hydroxyl and carboxyl reactive functional groups. As a preferred technical solution, the mesh number of the modified expandable graphite is 35-150 mesh, and the expansion ratio is 200-450 times.
[0072] The flame-retardant polyether polyol is a polyether polyol with bromine as a starting agent, the functionality is 2,...
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