Composition for rigid polyurethane foam and application thereof

A technology of rigid polyurethane and composition, applied in the field of composition for rigid polyurethane foam, can solve problems such as aggravating noise pollution in workshops, achieve good market prospects, good environmental benefits, and improve the effect of foam flame retardant performance

Inactive Publication Date: 2020-06-26
上海玓墨化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane foam is a porous material. The existing polyurethane foam for boards has a closed-cell structure. Although it has better thermal insulation performance, it will increase the noise pollution inside the factory building.

Method used

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  • Composition for rigid polyurethane foam and application thereof
  • Composition for rigid polyurethane foam and application thereof

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with embodiment. However, the scope of the present invention is not limited to the following examples. Those skilled in the art can understand that various changes and modifications can be made in the present invention without departing from the spirit and scope of the present invention.

[0034] The instruments, reagents, materials, etc. involved in the following examples, unless otherwise specified, are conventional instruments, reagents, materials, etc. in the prior art, and can be obtained through formal commercial channels. The experimental methods, detection methods, etc. involved in the following examples, unless otherwise specified, are conventional experimental methods, detection methods, etc. in the prior art.

[0035] The source of the used part raw material of following embodiment:

[0036] Polyether polyol A: SD-8345, purchased from Shanghai Dongda Chemical Co., Ltd. (SD-8345 is a sucro...

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Abstract

The invention discloses a composition for rigid polyurethane foam. The polyurethane foam is prepared from the following components in parts by weight: 3 to 5 parts of polyether polyol A, 2 to 4 partsof polyether polyol B, 2 to 4 parts of polyester polyol C, 0.1 to 0.5 part of foam stabilizer, 0.1 to 0.3 part of pore opening agent, 0.2 to 0.6 part of catalyst, 0.2 to 1.0 part of water and 1 to 3 parts of flame retardant. The preparation method can be used for preparing the rigid polyurethane foam, and comprises the following steps: mixing the composition for the rigid polyurethane foam with isocyanate, and pouring the mixture into a foaming reaction mold for foaming reaction molding. The rigid polyurethane foam is of an open-cell structure, the foam density is larger than or equal to 30 kg / m < 3 >, the compressive strength is larger than or equal to 100 kPa, the aperture ratio is larger than or equal to 80%, the flame retardant property reaches the DIN 4102 B2 level, and the rigid polyurethane foam has good heat preservation performance and voice absorption performance and can be used for preparing plates with voice absorption performance.

Description

technical field [0001] The invention relates to a composition for rigid polyurethane foam, a rigid polyurethane foam prepared by foaming the same, and an application thereof, which belong to the technical field of chemical synthesis. Background technique [0002] Rigid polyurethane foam is an organic material with excellent performance, which has the advantages of low density, high strength, and excellent thermal insulation performance; it is widely used in construction, cold chain, thermal insulation and other fields. Rigid polyurethane sheet is a composite material consisting of two layers of metal panels or other material panels bonded with rigid polyurethane foam. The outer layer of the polyurethane sheet is a metal panel with a waterproof coating, and the inner layer can be any material, such as color steel plate, aluminum foil, non-woven fabric, etc. Polyurethane board has high overall strength, strong bearing capacity, and excellent thermal insulation performance. It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/48C08G18/42C08K5/521C08K5/5333C08J9/08C08G101/00
CPCC08G18/4018C08G18/4211C08G18/4213C08G18/4804C08G18/7664C08K5/521C08K5/5333C08G2110/0025C08G2110/005C08G2110/0083
Inventor 信延垒任丽任洁洁
Owner 上海玓墨化工科技有限公司
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