Halogen-free Grade B1 high flame retardant spraying polyurethane foam plastic

A technology for spraying polyurethane and foam, applied in the field of flame-retardant polyurethane foam, can solve the problems of damage to the surrounding environment, affecting the function and life of attachments, and high density of burning smoke, so as to reduce costs, protect life and property safety, and improve heat conduction Effects of coefficients and cohesiveness

Inactive Publication Date: 2010-11-24
山东联创产业发展集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The halogen-containing substances in the foam are easy to decompose and release corrosive and toxic gases such as hydrogen halide, which will damage the attachments of the foam such as building walls, affect the function and life of the attachments, and also cause damage to the surrounding environment; Foam also emits corrosive and toxic gases such as hydrogen halide when it encounters fire, and the density of combustion smoke is high, which not only causes damage to attachments and the environment, but is also not conducive to escape and rescue work before the fire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Halogen-free B1 grade high flame retardant spray polyurethane foam combined polyether is composed of the following raw materials in weight ratio:

[0028] Polyether polyol A 50

[0029] Polyether polyol B 25

[0030] Flame Retardant Polyether Polyol 8

[0031] Foam Stabilizer 2.0

[0032] Composite Catalyst 3.0

[0033] Non-halogen flame retardant 15

[0034] Deionized water 0.5

[0035] Blowing agent 15

[0036] Among them, polyether polyol A is polyether 4110 of Binhua Group Co., Ltd., polyether polyol B is Zhangjiagang Nanguang Chemical Co., Ltd. NGPS-6533, and the non-halogen flame retardant is tris(dipropylene glycol) phosphite. The foam stabilizer is AK-338, and the blowing agent is HCFC-141b.

[0037] After the components are uniformly mixed according to the above ratio, they are mixed with isocyanate at a mass ratio of 1:1, and the mixture is prepared after reaction and foaming.

Embodiment 2

[0039] Halogen-free B1 grade high flame retardant spray polyurethane foam combined polyether is composed of the following raw materials in weight ratio:

[0040] Polyether polyol A 55

[0041] Polyether polyol B 35

[0042] Flame retardant polyether polyol 10

[0043] Foam Stabilizer 5.0

[0044] Composite Catalyst 4.0

[0045] Non-halogen flame retardants 23

[0046] Deionized water 0.8

[0047] blowing agent 18

[0048] Among them, polyether polyol A is polyether 403 from Shandong Bluestar Dongda Chemical Co., Ltd., polyether polyol B is PS-3152 from Nanjing Jinling Stepan Chemical Co., Ltd., and the non-halogen flame retardant is tri(polyoxyalkylene) Phosphate ester, foam stabilizer is AK8805, blowing agent is 141b.

[0049] After the components are uniformly mixed according to the above ratio, they are mixed with isocyanate at a mass ratio of 1:1.5, and then reacted and foamed.

Embodiment 3

[0051] Halogen-free B1 grade high flame retardant spray polyurethane foam combined polyether is composed of the following raw materials in weight ratio:

[0052] Polyether polyol A 60

[0053] Polyether polyol B 27

[0054] Flame retardant polyether polyol 13

[0055] Foam stabilizer 2.5

[0056] Composite catalyst 3.6

[0057] Non-halogen flame retardant 20

[0058] Deionized water 1.3

[0059] Blowing agent 12

[0060] Among them, polyether polyol A is KS-8326 of Tianjin Kangshun Chemical Co., Ltd., polyether polyol B is NGPS-6533 of Zhangjiagang Nanguang Chemical Co., Ltd., and the non-halogen flame retardant is tris(dipropylene glycol) phosphite and tris(dipropylene glycol) phosphite (polyoxyalkylene) phosphate ester, foam stabilizer is AK8808, blowing agent is HCFC-141b.

[0061] After the components are uniformly mixed according to the above ratio, they are mixed with the isocyanate at a mass ratio of 1:2, and the mixture is prepared after reaction and foaming.

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PUM

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Abstract

The invention relates to a halogen-free Grade B1 high flame retardant spray-applied polyurethane foam plastic which is characterized by being prepared by mixing and foaming of halogen-free Grade B1 high flame retardant spraying polyurethane foam plastic combined polyether and isocyanate. By using the halogen-free polyether glycol and adding a halogen-free flame retardant, the flame retardant property of the prepared polyurethane foam plastic can reach national Grade B1 standard; the gas released in the burning process of the foam is low in toxicity and concentration, thereby effectively protecting safety of life and properties of people; because of the lower grade of the used isocyanate, the cost is obviously reduced; and the foam has better heat conductivity coefficient and cohesive property.

Description

technical field [0001] The invention relates to a halogen-free B1 grade highly flame-retardant sprayed polyurethane foam, which belongs to the field of flame-retardant polyurethane foam. Background technique [0002] Rigid polyurethane foam is the best thermal insulation material, but it contains combustible hydrocarbon segments, low density, and large specific surface area. Polyurethane without flame-retardant treatment is combustible and will burn and decompose in case of fire. A large amount of toxic fumes are produced, making it difficult to extinguish the fire. At present, polyurethane foam mainly adopts the method of adding halogen-containing and phosphorus-containing flame retardants or polyols to achieve the purpose of flame retardancy. The halogen-containing substances in the foam are easy to decompose and release corrosive and toxic gases such as hydrogen halide, which will damage the attachments of the foam such as building walls, affect the function and life of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08G18/48C08G18/50C08K5/524C08K5/521C08K5/3492C08J9/14C08G101/00
Inventor 李洪国
Owner 山东联创产业发展集团股份有限公司
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