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B1-level spray coating type polyurethane modified polyisocyanurate foams

A technology for modifying polyisocyanurate and polyurethane, which is applied in the field of polyurethane foam plastics and can solve problems that do not belong to the flame-resistant method of foam plastics

Inactive Publication Date: 2008-12-10
福建省新达保温材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the fire-resistant coating method has great practical significance, it is not a fire-resistant method of the foam itself.

Method used

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  • B1-level spray coating type polyurethane modified polyisocyanurate foams

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Embodiment Construction

[0041] The formula of the present invention comprises: polyester polyol, cross-linking agent, surfactant, water, catalyst, flame retardant, blowing agent, isocyanate, polyurethane rigid foam is configured as follows in proportion by weight unit:

[0042] Polyester polyol PS-2412: 50-70kg

[0043] Polyester polyol PS-2412: 50-70kg

[0044] Polyether polyol 4110: 35-20kg

[0045] Polyether polyol 403: 15-10kg

[0046] Cross-linking agent: 6-7kg

[0047] Surfactant: 1.5-2kg

[0048] Water: 0.5-1kg

[0049] Composite amine catalyst: 2-3kg

[0050] Alkali metal salt catalyst (potassium acetate): 1-2.5kg

[0051] PZA (hexahydrotriazine): 0.5-1kg

[0052] Composite flame retardant (DMMP / TCPP): 23-24kg

[0053] Blowing agent 141b: 35-38kg

[0054] Mix it evenly, and then take the isocyanate solvent with a weight ratio of PAPI 210-212kg, pump the two into the spray gun from two pumps, mix and spray.

[0055] Among them, the composite flame retardant DMMP and TCPP are configur...

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Abstract

The invention relates to B1-level spray coating polyurethane modified poly (isocyanuric acid ester) foam, which relates to a polyurethane material. The B1-level spray coating polyurethane modified poly (isocyanuric acid ester) foam is characterized in that: the compositions of the polyurethane rigid foam by weight proportion are 50 to 70 kilograms of polyester polyol PS-2412, 35 to 20 kilograms of polyether glycol 4110, 15 to 10 kilograms of polyether glycol 403, 6 to 7 kilograms of crosslinking agents, 1.5 to 2 kilograms of surfactants, 0.5 to 1 kilogram of water, 2 to 3 kilograms of composite amine catalysts, 1 to 2.5 kilograms of alkali metal salt catalysts (potassium acetate), 0.5 to 1 kilogram of PZA (six-hydrogen triazine), 23 to 24 kilograms of composite fire retardant (DMMP / TCPP) and 35 to 38 kilograms of foaming agents 141b; the compositions are uniformly mixed, and 210 to 212 kilograms of PAPI isocyanate solvent are taken by weight ratio; and the mixture and the isocyanate solvent are thrown into a spray gun through two pumps and mixed, and then spray coating is performed. The B1-level spray coating polyurethane modified poly (isocyanuric acid ester) foam has the advantages that: the polyester polyol PS-2412 is selected and a proper mixture ratio of DMMP and TCPP of the composite fire retardant is selected, thereby the fire retardant property of the polyurethane rigid foam reaches the B1 level.

Description

Technical field: [0001] This invention relates to polyurethane foams. Background technique: [0002] As an organic polymer product and its special structure, polyurethane foam determines its flammability. However, with the continuous promotion and wide application of polyurethane rigid foam application technology, the requirements for its flame retardant performance are getting higher and higher, especially GB20286-2006 "Requirements and Marking of Flame Retardant Products and Components in Public Places" and GB8624- After the promulgation and implementation of the "Classification Method for Combustion Behavior of Building Materials" in 2006, polyurethane foam is facing severe challenges in terms of flame retardant and fireproof performance. In order to improve the flame retardancy of polyurethane foam, it is common practice to increase the amount of flame retardant in the formula. However, when used in the field of building insulation, especially in public places, it stil...

Claims

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Application Information

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IPC IPC(8): C08G18/42C08G18/48C09D175/04C08K5/3492C08G101/00
Inventor 高孝良王虹喜苏醒
Owner 福建省新达保温材料有限公司
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