Automobile roof polyurethane composition

A technology for automobile roof and composite materials, which is applied in the field of polyurethane automobile roof composite materials, and can solve problems such as high aldehyde content, high VOC value, and strong odor

Inactive Publication Date: 2017-05-10
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

[0004] The technical problem to be solved by the present invention is the high content of aldehydes, high VOC value and large odor in the polyurethane automobile roof material in the prior art, and a new polyurethane automobile roof composite material is provided

Method used

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  • Automobile roof polyurethane composition
  • Automobile roof polyurethane composition
  • Automobile roof polyurethane composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Preparation of component A: 1000kg: Weigh polyether polyol Ⅰ: CHE-330N (Jiangsu Changhua) 400kg, polyether polyol Ⅱ: CHE-220 (Jiangsu Changhua) 300kg, polyester polyol: PS -3152 (Nanjing Stepan) 200kg, chain extender: DEG45kg, foam stabilizer: B8871 (Evonik) 15kg, catalyst: ZF-10 (huntsman) 5kg, water: 30kg, compound antioxidant: antioxidant 1010: 2kg, antioxidant 168: 3kg;

[0021] 2. Add the weighed polyether polyol Ⅰ, polyether polyol Ⅱ, polyester polyol, chain extender, foam stabilizer, catalyst, water, and antioxidant into the reaction kettle in sequence, and stir at room temperature 2 hours, mix well;

[0022] 3. Weigh component B as polymethyl polyphenyl polyisocyanate M20S: 1200kg;

[0023] 4. Set the box size according to the required size before foaming, and control the temperature of component A and component B to 16-24 degrees;

[0024] 5. Mix component A and component B according to the weight ratio of 1:1.2, mix them evenly through a foaming machine,...

Embodiment 2

[0026] 1. Preparation of component A: 1000kg: Weigh polyether polyol Ⅰ: CHE-828 (Jiangsu Changhua Technology Co., Ltd.) 350kg, polyether polyol Ⅱ: GE-403 (Gaoqiao Petrochemical) 200kg, polyester polyol Alcohol: PS3152 (Nanjing Stepan) 200kg, chain extender: glycerin 140kg, foam stabilizer: AK-8805 (Mesid) 15kg, catalyst: NE-300 (Air Chemicals) 5kg, water: 50kg, compound anti Oxygen: Antioxidant 168: 1kg, BHT: 1kg, Antioxidant 445: 3kg;

[0027] 2. Add the weighed polyether polyol Ⅰ, polyether polyol Ⅱ, polyester polyol, chain extender, foam stabilizer, catalyst, water, and antioxidant into the reaction kettle in sequence, and stir at room temperature 2 hours, mix well;

[0028] 3. Weigh component B as polymethyl polyphenyl polyisocyanate M20S: 1500kg;

[0029] 4. Set the box size according to the required size before foaming, and control the temperature of component A and component B to 16-24 degrees;

[0030] 5. Mix component A and component B according to the weight ratio...

Embodiment 3

[0032] 1. Preparation of component A: 1000kg: Weigh polyether polyol Ⅰ: CHE-5603 (Jiangsu Changhua) 300kg, polyether polyol Ⅱ: CHE-307 (Jiangsu Changhua) 390kg, polyester polyol: PS2412 (Nanjing Stepan) 200kg, chain extender: BDO40kg, foam stabilizer: B8871 (Evonik) 15kg, catalyst: ZF-10 (huntsman) 5kg, water: 45kg, compound antioxidant: antioxidant 3010: 2kg, antioxidant 1135:3kg;

[0033] 2. Add the weighed polyether polyol Ⅰ, polyether polyol Ⅱ, polyester polyol, chain extender, foam stabilizer, catalyst, water, and antioxidant into the reaction kettle in sequence, and stir at room temperature 2 hours, mix well;

[0034] 3. Weigh component B as polymethyl polyphenyl polyisocyanate M20S: 1600kg;

[0035] 4. Set the box size according to the required size before foaming, and control the temperature of component A and component B to 16-24 degrees;

[0036] 5. Mix component A and component B according to the weight ratio of 1:1.6, mix them evenly through a foaming machine, a...

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Abstract

The invention relates to an automobile roof polyurethane composition which mainly solves the problems existing in the prior art such as high VOC value and great odor due to relatively high aldehyde content. With the adoption of the technical scheme of the invention, the low-VOC low-odor automobile roof composition is composed of a component A and a component B, wherein a ratio of the weight percentage of the component A to the component B is 1:(1.1-2.0); the component A comprises polyether polyol, polyester polyol, polypolyols, a chain extender, a foam stabilizer, a catalyst, water and at least one aid of colorants, antioxidants and dispersing agents; and the component B refers to polymethylene polyphenyl isocyanate or modified polymethylene polyphenyl isocyanate. The problems are well solved, and the composition can be used in industrialized production of the low-VOC low-odor automobile roof composition.

Description

technical field [0001] The invention belongs to an automobile ceiling composite material, in particular to a polyurethane automobile ceiling composite material. 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, toluene, xylene a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/40C08G18/48C08G18/42C08G18/32C08G101/00
CPCC08G18/3206C08G18/4018C08G18/42C08G18/4804C08G18/4829C08G18/6607C08G18/6611C08G2110/0083
Inventor 施海云康念军聂申文陈观洪
Owner 江苏长顺高分子材料研究院有限公司
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