Single-component polyurethane foam rubber and preparation method thereof

A polyurethane foam, one-component technology, used in polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve the problems of odor and low environmental performance, and achieve dense cells and foaming. high rate effect

Inactive Publication Date: 2018-06-29
SHANGHAI DONGDA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a single-component polyurethane foam and a preparation method thereof in order to overcome defects such as low product environmental performance and odor caused by the use of harmful solvents in the existing polyurethane foam. The one-component polyurethane foam has good environmental protection performance, and its dimensional stability, bonding strength and other properties can meet the technological needs of the market

Method used

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  • Single-component polyurethane foam rubber and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0052]This example provides a one-component polyurethane foam, including the following components: 60 parts of polyether polyol 330N, 30 parts of polyether polyol 305, 10 parts of polyester polyol PE-2010, 5 parts of trihydroxy Methylpropane, 10 parts Niax L-6164, 2 parts fumed silica, 2 parts SC-54, 2.5 parts bismorpholino diethyl ether, 0.5 parts dibutyltin dilaurate, 80 parts polyphenylmethane Diisocyanate, 5 parts of supercritical carbon dioxide with a pressure of 5Mpa.

[0053] The preparation method of above-mentioned one-component polyurethane foam glue is:

[0054] (1) Polyether polyol 330N, polyether polyol 305, polyester polyol PE-2010, Niax L-6164, fumed silica, SC-54, bismorpholino diethyl Ether and dibutyltin dilaurate are evenly mixed to obtain a white material; the white material is poured into an aerosol can using aerosol can equipment;

[0055] (2) Pour polyphenylmethane diisocyanate into the aerosol can in parts by mass;

[0056] (3) Pump the supercritical...

Embodiment 2

[0058] This embodiment provides a one-component polyurethane foam, including the following components: 30 parts of polyether polyol 220, 45 parts of polyether polyol 204, 15 parts of polyester polyol PE-2320, 5 parts of 1, 4 butanediol, 5 parts of Niax L-5154, 4 parts of fumed silica, 1 part of SC-54, 3 parts of bismorpholino diethyl ether, 1 part of dibutyltin dilaurate, 50 parts of polyphenyl Methane diisocyanate, 6 parts of supercritical nitrogen with a pressure of 5Mpa.

[0059] The preparation method of the one-component polyurethane foam of this embodiment is the same as that of Embodiment 1.

Embodiment 3

[0061] This example provides a one-component polyurethane foam, including the following components: 15 parts of polyether polyol 310, 50 parts of polyether polyol 3050D, 5 parts of polyester polyol PE-2020, 2.5 parts of 1, 4 butanediol, 8 parts of Niax L-5154, 5 parts of fumed silica, 3 parts of SC-54, 3.5 parts of bismorpholino diethyl ether, 1.5 parts of dibutyltin dilaurate, 80 parts of polyphenyl Methane diisocyanate, 4 parts pressure is 14Mpa supercritical carbon dioxide.

[0062] The preparation method of the one-component polyurethane foam of this embodiment is the same as that of Embodiment 1.

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Abstract

The invention discloses single-component polyurethane foam rubber and a preparation method thereof. The single-component polyurethane foam rubber is prepared from the following components in parts bymass: 30 to 100 parts of polyether polyol and/or polyester polyol, 0.5 to 5 parts of a crosslinking agent, 1 to 15 parts of an opening agent, 0.5 to 10 parts of gas-phase white carbon black, 1 to 3 parts of a foam stabilizer, 0.2 to 5 parts of a catalyst, 1 to 10 parts of supercritical fluid and 30 to 150 parts of polyisocyanate. According to the single-component polyurethane foam rubber and the preparation method thereof, a supercritical foaming technology and a single-component polyurethane foaming technology are integrated. The supercritical fluid of the single-component polyurethane foam rubber is used as a brand-new environmentally-friendly adhesive, so that the prepared single-component polyurethane foam rubber has dual advantages of foam hole compactness and high foaming rate, and is inevitably widely applied to occasions with requirements for high intensity.

Description

technical field [0001] The invention relates to the field of chemical material polymers, in particular to a one-component polyurethane foam and a preparation method thereof. Background technique [0002] One-component polyurethane foam can be used in the gaps and holes of decoration material parts to fill, seal and bond them. It uses trace moisture in the air as a cross-linking accelerator, and solidifies into an elastic state at room temperature. It has the advantages of strong adhesion, good elasticity, insulation, high temperature resistance and cold resistance, and has high performance for general building decoration materials. Excellent adhesion, so polyurethane foam has been widely used. However, most of the products on the market now use harmful solvents such as dichloromethane, and have a smell, so their application is limited. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a single-component polyureth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/42C08G18/32C08J9/12C08K3/36C09J175/08C09J11/04C08G101/00
CPCC08G18/42C08G18/4808C08G18/4812C08G18/4816C08G18/6607C08G18/6611C08G18/664C08G18/6644C08G18/6674C08G18/6677C08J9/122C08J2203/06C08J2375/08C08K3/36C09J11/04C09J175/08C08G2110/005
Inventor 杜辉赵凤艳徐磊郭东雷王伟董建国
Owner SHANGHAI DONGDA CHEM
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