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Low VOC (volatile organic compound) polyurethane foam and preparation method thereof

A technology of polyurethane foam and polyester polyol, applied in the field of low VOC polyurethane foam and its preparation, can solve the problems of high content of benzene and aldehydes, high odor and high VOC value

Inactive Publication Date: 2018-05-22
江苏长顺高分子材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is the problems of high VOC value, high content of benzene and aldehydes, and large odor in the polyurethane foam in the prior art. A new polyurethane foam is provided, which has low VOC , low odor, low toluene and formaldehyde content, no benzene, ethylbenzene, diethylbenzene, styrene, acetaldehyde, acrolein and other substances

Method used

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  • Low VOC (volatile organic compound) polyurethane foam and preparation method thereof
  • Low VOC (volatile organic compound) polyurethane foam and preparation method thereof
  • Low VOC (volatile organic compound) polyurethane foam and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027](1) Prepare component A1: 100g; control the reaction temperature at 10°C, add polyether polyols to foaming container A: CHE-828: 45g, CHE-310: 48g, hydrazine hydrate: 1g and PM200: 6g, Stir for 30 minutes and let stand for 210 minutes to obtain component A1;

[0028] (2) Prepare component A2: 30g; control the reaction temperature at 10°C, add polyester polyol in foaming container B: PS-2452: 21g, water: 4.5g, TMR-2: 0.6g, monoethanolamine: 3g and L-5345: 0.9g, stirred for 30min, and stood still for 210min to obtain component A2;

[0029] (3) Preparation of component A: 130g; control the reaction temperature at 10°C, mix and stir 100g of component A1 and 30g of component A2 for 30min to obtain component A;

[0030] (4) Preparation of polyurethane foam: control the reaction temperature at 10°C, prepare component B: M20S: 104g, mix the weighed component B and component A, stir for 30 minutes, pour into the mold for free foaming for 30 minutes, Polyurethane foam was obtain...

Embodiment 2

[0032] 1. Prepare component A1: 100g; control the reaction temperature at 15°C, add polyether polyols into foaming container A: CHE-5603: 40g, CHE-210: 40g, hydrazine hydrate: 5g and MDI-50: 15g , stirred for 60 minutes, and stood still for 100 minutes to obtain component A1;

[0033] 2. Prepare component A2: 100g; control the reaction temperature at 15°C, add polyester polyol: PS-8001: 89g, water: 5g, NE300: 0.1g, butanediol: 5g and L -5309: 0.9g, stirred for 60min, left to stand for 100min to obtain component A2;

[0034] 3. Preparation of component A: 200g; control the reaction temperature at 15°C, mix and stir 100g of component A1 and 100g of component A2 for 60min to obtain component A;

[0035] 4. Preparation of polyurethane foam: control the reaction temperature at 15°C, prepare component B: pure MDI: 200g, mix the weighed component B and component A, stir for 10 minutes, pour into the mold for free foaming for 20 minutes, Polyurethane foam was obtained; the quality i...

Embodiment 3

[0037] 1. Prepare component A1: 100g; control the reaction temperature at 20°C, add polyether polyols: CHE-307: 40g, CHE-828: 50g, hydrazine hydrate: 2g and TDI: 8g into the foaming container A, and stir 10min, let it stand for 20min to get component A1;

[0038] 2. Prepare component A2: 60g; control the reaction temperature at 20°C, add polyester polyol: PS-2020: 48g, water: 6g, PT303: 0.6g, dipropylene glycol: 3.9g and L -5345: 1.5g, stirred for 10min, left to stand for 80min to obtain component A2;

[0039] 3. Preparation of component A: 160g; control the reaction temperature at 20°C, mix and stir 100g of component A1 and 60g of component A2 for 40min to obtain component A;

[0040] 4. Preparation of polyurethane foam: control the reaction temperature at 20°C, prepare component B: carbodiimide modified MDI: 320g, mix the weighed component B with component A, stir for 30 minutes, and pour it into the mold Foam freely for 60 minutes to obtain polyurethane foam. The quality...

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Abstract

The invention relates to low VOC polyurethane foam and a preparation method thereof. Low VOC polyurethane foam mainly solves the problems that the VOC value is slightly high, the contents of benzene and aldehydes materials are high, and the odor is strong existing in the prior art. The problems are well solved by adopting a technical scheme of low VOC and low odor polyurethane foam and the preparation method thereof, low VOC and low odor polyurethane foam is prepared from a component A and a component B, and the weight percentage of the component A and the component B is 1:(0.8-2.0), wherein the component A is prepared from a component A1 and a component A2, the component A1 is prepared from polyether polyol, hydrazine hydrate and isocyanate, the component A2 is prepared from polyester polyol, a foaming agent, a catalyst, a cross-linking agent and silicone oil, and the component B is isocyanate. The preparation method can be applied to industrialized production of low VOC polyurethanefoam.

Description

technical field [0001] The invention belongs to the field of polyurethane foam and its preparation method, in particular to low-VOC polyurethane foam and its preparation method. Background technique [0002] Polyurethane foam has outstanding physical properties and is widely used in the automotive industry. In recent years, automobile manufacturers have put forward more stringent demands on their foam suppliers, especially the stricter requirements on the volatile organic compound (VOC) content and odor of polyurethane foam. The Chinese interpretation of VOC means volatile organic compounds, which have a sense of smell, are irritating, and have certain toxicity. VOC mainly includes aldehydes, amines, benzene compounds, and low molecular alcohols. According to the national standard GB18586-2001, choose a stricter definition of VOC, the general term for organic volatiles with a melting point below room temperature and a boiling point between 50 and 260°C, including benzene, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/32C08G18/40C08G18/42C08G18/48C08J9/08C08G101/00
CPCC08G18/3206C08G18/3231C08G18/4018C08G18/42C08G18/4812C08G18/4816C08G18/4825C08G18/4829C08G18/6618C08G18/6622C08G2110/0083
Inventor 施海云陈观洪聂申文
Owner 江苏长顺高分子材料研究院有限公司