Method for analyzing surface hydrophobicity of fluorinated polyurethane

An analytical method and polyurethane technology, applied in chemical property prediction, special data processing applications, instruments, etc., can solve the problem of low accuracy of hydrophobicity on the surface of fluorine-containing polyurethane, and achieve remarkable technological progress, effective analytical methods and reliable results. Effect
CN106096258AInactive Publication Date: 2016-11-09UNIV OF SHANGHAI FOR SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF SHANGHAI FOR SCI & TECH
Publication Date
2016-11-09
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a method for analyzing surface hydrophobicity of fluorinated polyurethane. Materials Studio software is utilized to establish a surface structure model containing fluorinated polyurethane, water clusters are placed above a float point unit (FPU) surface model, and FPU surface hydrophobicity is analyzed through a molecular dynamics calculation method. Since the molecular simulation calculation process is performed in an ideal environment, interference of all external factors is excluded. The method for analyzing surface hydrophobicity of fluorinated polyurethane is more effective, results are more reliable, and the theoretical basis and guidance are provided for experimental research.
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Description

technical field

[0001] The invention belongs to the field of chemical industry and relates to a fluorine-containing polyurethane, in particular to a method for analyzing the surface hydrophobicity of the fluorine-containing polyurethane. Background technique

[0002] In FPU, due to the extremely low surface energy of fluorine element, the fluorine-containing segment will spontaneously migrate to the surface and enrich the fluorine element on the surface of the material, so that FPU has excellent water repellency, oil repellency and corrosion resistance, etc. . The surface fluorine content and surface energy of FPU are usually analyzed and characterized by X-ray diffraction spectroscopy (XPS) and contact angle measuring instrument. There have been some reports on the surface properties of FPU. The migration rate of the fluorine-containing segment and the surface enrichment rate of fluorine depend on the mobility of the fluorine-containing segment. When the fluorine-containi...

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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