Spray finishing polyurethane rigid foam raw material and foam produced thereof

A technology for spraying polyurethane and rigid foam, applied in the field of polyurethane foam, can solve the problems of poor adhesion, poor adhesion between foam and substrate, high foam density, etc., and achieve good dimensional stability and good flame retardant performance. , the effect of low thermal conductivity

Active Publication Date: 2009-08-19
万华化学(佛山)容威聚氨酯有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the spraying system currently available on the market will cause many problems when the thermal insulation layer is constructed at an ambient temperature of -10 degrees to 50 degrees, such as poor adhesion between the foam and the substrate, poor adhesion between foam layers, and poor

Method used

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  • Spray finishing polyurethane rigid foam raw material and foam produced thereof
  • Spray finishing polyurethane rigid foam raw material and foam produced thereof
  • Spray finishing polyurethane rigid foam raw material and foam produced thereof

Examples

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Example Embodiment

[0018] The following examples further illustrate the embodiments of the present invention. However, the present invention is not limited to these embodiments, but should also include any other known changes within the scope of the claims of the present invention. Example 1

[0019] B component:

[0020] Polyester polyol 20-50 parts

[0021] Polyether polyol 10-40 parts

[0022] Silicone oil 1.0 parts

[0023] 0.2-0.6 parts of water

[0024] Catalyst 2-8 parts

[0025] Flame retardant 10-30 parts

[0026] Blowing agent HCFC-22 2-8 parts

[0027] 10-30 parts of foaming agent HCFC-141b

[0028] A component:

[0029] 110 parts of polymethylene polyphenyl isocyanate PM-200

[0030] According to the above A component and B group construction, the polyurethane rigid foam produced after construction has the following properties.

[0031]

Example Embodiment

[0032] Example 2

[0033] raw material:

[0034] B component:

[0035] Polyester polyol 20-50 parts

[0036] Polyether polyol 10-40 parts

[0037] Silicone oil 1.0 parts

[0038] 0.2-0.6 parts of water

[0039] Catalyst 2-8 parts

[0040] Flame retardant 10-30 parts

[0041] Blowing agent HFC-134a 1-8 parts

[0042] 10-30 parts of foaming agent HCFC-141b

[0043] A component:

[0044] 110 parts of polymethylene polyphenyl isocyanate PM-200

[0045] According to the above A component and B group construction, the polyurethane rigid foam produced after construction has the following properties.

[0046]

Example Embodiment

[0047] Example 3

[0048] B component:

[0049] Polyester polyol 20-50 parts

[0050] Polyether polyol 10-40 parts

[0051] Silicone oil 1.0 parts

[0052] 0.2-0.6 parts of water

[0053] Catalyst 2-8 parts

[0054] Flame retardant 10-30 parts

[0055] Blowing agent HCFC-22 2-8 parts

[0056] Blowing agent HFC-134a 1-8 parts

[0057] 10-30 parts of foaming agent HCFC-141b

[0058] A component:

[0059] 110 parts of polymethylene polyphenyl isocyanate PM-200

[0060] According to the above A component and B group construction, the polyurethane rigid foam produced after construction has the following properties.

[0061]

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PUM

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Abstract

The invention relates to a sprayed rigid polyurethane foam raw material and foam produced therefrom. The sprayed rigid polyurethane insulation foam raw material comprises an isocyanate component and a polyol component, and can be used in various insulating fields. The sprayed rigid polyurethane foam raw material comprises component A and component B, the volume ratio of the component A to the Component B ranges from 1:1 to 1.5:1; the component A is of isocyanate and the component B is of polylol and various additives, and the optional additives comprise a catalyst, a foam stabilizer, a flame retardant and a foaming agent. The sprayed rigid polyurethane foam raw material is characterized in that the foaming agent comprises a chemical foaming agent and a physical foaming agent, the chemical foaming agent is of water, and the physical foaming agent comprises a main foaming agent accounting for 0.1%-30% of the component B and other physical foaming agents based on mass percentage. Products constructed with the foam raw material have good adhesive force and flame retardance, low thermal conductivity and good dimensional stability. The raw material can be conveniently used for rigid polyurethane foam construction in the insulation fields including external wall insulation of buildings.

Description

technical field [0001] The invention relates to a polyurethane rigid foam raw material and a foam prepared from the polyurethane rigid foam raw material, belonging to the technical field of polyurethane foam. Background technique [0002] Polyurethane rigid foam has good thermal insulation performance, and the thermal insulation effect of 25mm thick polyurethane rigid foam is equivalent to 40mm thick polystyrene foam EPS, 45mm mineral wool, 380mm thick concrete or 860mm Ordinary brick. Under the same heat preservation effect, the thickness is about half that of EPS. According to thermal engineering calculations, in order to achieve the goal of 65% building energy saving in North my country, the thickness of rigid polyurethane foam only needs to be 3 cm, while the thickness of EPS board needs to be more than 7 cm, and the thickness of extruded polystyrene XPS board needs to be more than 5 cm. Therefore, polyurethane rigid foam boards are widely used in various fields that r...

Claims

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Application Information

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IPC IPC(8): C08G18/72C08G18/76C08G18/42C08G18/48C08J9/08C08J9/14
Inventor 张海平韩怀强王军丰
Owner 万华化学(佛山)容威聚氨酯有限公司
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