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Polyurethane, product and preparation method thereof

A technology of polyurethane and isocyanate, which is applied in the field of polyurethane and its products and preparation, can solve the problems of danger, difficulty in reaching, and carcinogenicity, and achieve good sound absorption and sound insulation performance, low VOC content, and high production efficiency.

Inactive Publication Date: 2017-08-18
苏州高夫高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2016, China's "Passenger Car Interior Air Quality Evaluation Guidelines" mandatory standard consultation draft was released, which puts more stringent requirements on the air quality in the car and the environmental protection requirements of the interior parts of the car, so the use of environmentally friendly polyurethane cars Products have become the mainstream, but the VOC pass rate of existing polyurethane products on the market is uneven, and it is difficult to meet the standards set by the state. The hardness of the automotive products produced by Tongshi is single. Relatively single type
This invention uses silicone oil. In the early 1990s, people who were exposed to silicone oil for a long time would reduce their immunity and even cause cancer. Therefore, the production of polyurethane designed by this invention is dangerous for workers who work long hours in the workshop.

Method used

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  • Polyurethane, product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of polyurethane, described polyurethane is made with polyether polyol mixture and isocyanate as raw material, and described polyether polyol comprises highly active polyether polyol, graft type polyether polyol, crosslinking agent, opening agent, Catalyst, foaming agent, formaldehyde removal agent A and formaldehyde removal agent B, above-mentioned raw material composition ratio is:

[0035] Highly reactive polyether polyol: 30-50 parts;

[0036] Graft polyether polyol: 20-40 parts;

[0037] Cross-linking agent: 1 to 3 parts;

[0038] Cell opener: 2 to 6 parts;

[0039] Catalyst: 2 to 3.3 parts;

[0040] Foaming agent: 4 to 6 parts;

[0041] Aldehyde remover A: 0.2 to 0.8 parts;

[0042] Aldehyde remover B: 0.5-2.0 parts;

[0043] Isocyanate: 60-100 parts.

[0044] Specifically, the preparation steps:

[0045] S1: Pretreatment: Mix the aldehyde remover A with the aldehyde remover B, and add it into water to melt in proportion (mixture of aldehyde remover:...

Embodiment 2

[0049] A kind of polyurethane, described polyurethane is made with polyether polyol mixture and isocyanate as raw material, and described polyether polyol comprises highly active polyether polyol, graft type polyether polyol, crosslinking agent, opening agent, Catalyst, foaming agent, formaldehyde removal agent A and formaldehyde removal agent B, above-mentioned raw material composition ratio is:

[0050] Highly active polyether polyol: 40 parts;

[0051] Graft type polyether polyol: 30 parts;

[0052] Cross-linking agent: 2 parts;

[0053] Cell opener: 4 parts;

[0054] Catalyst: 2.7 parts;

[0055] Foaming agent: 5 parts;

[0056] Reactive formaldehyde remover: 0.5 parts;

[0057] Aldehyde remover B: 1.4 parts;

[0058] Isocyanate: 80 parts.

[0059] Specifically, the preparation steps:

[0060] S1: Pretreatment: Mix the reactive aldehyde remover with the aldehyde remover B, and add it into water to melt in proportion (mixture of aldehyde remover: water) = 1:1;

[0...

Embodiment 3

[0064] A kind of polyurethane, described polyurethane is made with polyether polyol mixture and isocyanate as raw material, and described polyether polyol comprises highly active polyether polyol, graft type polyether polyol, crosslinking agent, opening agent, Catalyst, foaming agent, formaldehyde removal agent A and formaldehyde removal agent B, above-mentioned raw material composition ratio is:

[0065] Highly active polyether polyol: 30 parts;

[0066] Graft type polyether polyol: 20 parts;

[0067] Cross-linking agent: 1 part;

[0068] Cell opener: 2 parts;

[0069] Catalyst: 2 parts;

[0070] Foaming agent: 4 parts;

[0071] Reactive aldehyde remover: 0.2 parts;

[0072] Catalytic decomposition type aldehyde remover: 0.5 parts;

[0073] Isocyanate: 60 parts.

[0074] Specifically, the preparation steps:

[0075] S1: Pretreatment: Mix the reactive aldehyde remover with the catalytic decomposition aldehyde remover, and add it into water in proportion (mixture of aldeh...

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Abstract

The invention belongs to the technical field of preparation and application of polyurethane and provides polyurethane, a product and a preparation method thereof. The polyurethane is prepared by adopting a polyether polyol mixture and isocyanate as raw materials; the polyether polyol contains high-activity polyether polyol, grafting type polyether polyol, crosslinking agent, pore forming agent, catalyst, foaming agent, formaldehyde removing agent A and formaldehyde removing agent B. The polyurethane provided by the invention has good environment-friendly property and sound-absorbing property, simultaneously the polyurethane preparation method provided by the invention is applicable to large-mold foaming, and the production efficiency of polyurethane is improved.

Description

technical field [0001] The invention belongs to the technical field of polyurethane preparation and application, and in particular relates to a polyurethane product and a preparation method thereof. Background technique [0002] Polyurethane material is currently the best thermal insulation material in the world. Because of its good oil resistance, toughness, wear resistance, aging resistance and adhesion, it is made into automotive products such as seats, armrests and carpet linings; for polyurethane In addition to the application performance of automotive supplies, people pay more attention to the safety of the products; among them, the VOC (volatile organic gas) content of automotive supplies is one of the important indicators for safety inspection. In 2016, China's "Passenger Car Interior Air Quality Evaluation Guidelines" mandatory standard consultation draft was released, which puts stricter requirements on the air quality in the car and the environmental protection re...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08G101/00
CPCC08G18/4804C08G2101/00
Inventor 潘开飞李相哲
Owner 苏州高夫高分子材料有限公司
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