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

Inactive Publication Date: 2015-09-02
WEIHAI YUNSHAN TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of organic flame retardant does not participate in the molding reaction of polyurethane rigid foam, but only exists in the phase of polyurethane rigid foam as an additive. As time goes by, small molecules of flame retardant are released, resulting in a decrease in flame retardant index
In addition, during the production and construction of insulation materials, the existence of a large number of

Method used

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  • Flame-retardant rigid polyurethane foam heat insulation plate
  • Flame-retardant rigid polyurethane foam heat insulation plate

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[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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Abstract

The invention relates to a flame-retardant rigid polyurethane foam heat insulation plate. The flame-retardant rigid polyurethane foam heat insulation plate comprises a component A and a component B, wherein the component A is formed by mixing flame-retardant polyether or flame-retardant polyether polyol, amidogen ether polyol, common polyether polyol, a foam stabilizer, a catalyst, a reactive flame retardant, modified expandable graphite and a foaming agent according to a certain proportion. The component B is isocyanate. The component A and the component B are mixed, and then are subjected to compression molding to obtain the flame-retardant heat insulation plate. According to the prepared flame-retardant rapid polyurethane foam heat insulation plate, flame-retardant testing data exceed a GB8624-2012B1-grade flame-retardant standard, the oxygen index is up to 48.9, and the heat conduction coefficient is about 0.02W/m.k. The flame-retardant rigid polyurethane foam heat insulation plate has excellent compressive strength and bending resistance strength. The flame-retardant rigid polyurethane foam heat insulation plate is suitable for being applied to the fields of flame retardance and heat insulation of building walls, refrigeration houses, refrigerators, solar water heaters and the like.

Description

technical field [0001] The invention relates to the field of flame retardant and heat preservation of building walls, cold stores, refrigerators and solar water heaters, in particular to a flame retardant polyurethane rigid foam heat preservation board without added flame retardant. Background technique [0002] The country attaches great importance to building energy conservation, and thermal insulation materials are the key to building energy conservation. At present, the three major insulation boards that occupy the largest proportion of the building insulation market are benzene board, extruded board and polyurethane rigid foam board. Compared with benzene board and extruded board, polyurethane rigid foam board has great advantages in flame retardancy and thermal insulation performance. With the national fire department's emphasis on flame retardancy, the requirements for flame retardancy of thermal insulation materials have also increased. In order to meet the GB 8624...

Claims

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Application Information

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IPC IPC(8): C08G18/65C08G18/50C08G18/32C08G18/46C08K9/00C08K7/24C08K5/49C08J9/14
CPCC08G18/3203C08G18/4684C08G18/5012C08G18/6511C08J9/143C08J2203/142C08J2205/10C08K5/0066C08K7/24C08K9/00C08G2110/0025
Inventor 贾幸涛周薇薇韩啸温广武
Owner WEIHAI YUNSHAN TECH
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