Preparation method of carbon-dioxide-base polyurea high polymer material

A polymer material, carbon dioxide technology, used in epoxy resin adhesives, adhesive types, adhesives, etc., can solve problems such as low performance, affecting polyurea reaction, and inability to remove moisture, achieving a wide range of applications and atomic economy. The effect of good performance and simple process
CN104650322AActive Publication Date: 2015-05-27CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2015-05-27

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Abstract

The invention discloses a preparation method of a carbon-dioxide-base polyurea high polymer material, belonging to the technical field of preparation of high polymer materials. The method solves the problem that the carbon-dioxide-base polyurea in the prior art can not satisfy the requirements, and widens the application range of the carbon-dioxide-base polyurea. The preparation method comprises the following step: polymerizing amino-terminated polyurea oligomer with a chain extender, an epoxy resin, an alkyd resin, a phenol formaldehyde resin, a urea-formaldehyde resin or other active-terminated oligomers to obtain the carbon-dioxide-base polyurea high polymer material. The structural formula of the amino-terminated polyurea oligomer is disclosed as Formula I. The preparation method is green and environment-friendly, has the advantages of no pollution, simple technique, favorable atomic economical efficiency and wide application range, can prepare high polymer materials with various properties through further reaction between amino-terminated polyurea oligomers with different structures and different substrates, and is suitable for multiple purposes.
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Description

technical field

[0001] The invention relates to a method for preparing a carbon dioxide-based polyurea polymer material, and belongs to the technical field of polymer material preparation. Background technique

[0002] Carbon dioxide-based polyurea, which has good mechanical properties, thermal reactivity and chemical resistance, has been extensively studied in recent years.

[0003] In the prior art, the preparation method of carbon dioxide-based polyurea mainly uses organic amine and carbon dioxide as raw materials for direct preparation. As reported by Zhao Fengyu et al. (Phys.Chem.Chem.Phys., 2012, 14, 464-468), a method for preparing polyurea by a one-step method of diamine and carbon dioxide at 4-20 MPa, however, in this preparation method, due to diamine and Carbon dioxide reacts in a closed container, and the water produced by the side reaction of polyurea cannot be removed, which affects the further reaction of polyurea, resulting in low molecular weight and low pe...

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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