Modified carbon dioxide-based waterborne polyurethane and preparation method thereof

A technology of water-based polyurethane and carbon dioxide, applied in the field of polyurethane, can solve problems such as poor water resistance, poor heat resistance, and difficulty in meeting market requirements
CN106977680AInactive Publication Date: 2017-07-25CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2017-07-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides modified carbon dioxide-based waterborne polyurethane, which has a structure as shown in a formula (I). Carbon dioxide and epoxypropane are copolymerized so as to prepare carbon dioxide-based polyatomic alcohol, and 9,10-dioxystearic acid and dimethylolbutanoic acid are matched jointly as a hydrophilic group chain segment, so that not only the dependence on petrifaction resources be reduced, but also compared with traditional waterborne polyurethane prepared from polyester polyatomic alcohol and polyether polyol, the modified carbon dioxide-based waterborne polyurethane has excellent water resistance and mechanical property. The formula (I) is shown in the specification.
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Description

technical field

[0001] The invention relates to the technical field of polyurethane, in particular to a modified carbon dioxide-based waterborne polyurethane and a preparation method thereof. Background technique

[0002] Polyurethane materials with superior performance have been widely used in many fields of national economic development. Most of the raw materials for the preparation of polyurethane come from the petrochemical industry. With the development and progress of society, the petroleum resources that support the development of the world economy are increasingly exhausted. The preparation and use of raw materials from petrochemical resources will also cause environmental pollution. In addition, due to the implementation of environmental laws and regulations and the enhancement of people's awareness of environmental protection, the application of solvent-based polyurethane is also limited. It is particularly important to seek petroleum substitutes, develop new mate...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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