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A platform for research: civil engineering, architecture and urbanism
Fluororesin-polyurethane self-stratification concrete protective coating and preparation method thereof
The invention provides a fluororesin-polyurethane self-stratification concrete protective coating consisting of fluororesin, fluorine modified polyurethane, polyurethane and an organic solvent, wherein the total solid content of resin is 35-60wt%, and the mass ratio of fluorocarbon resin to fluorine modified polyurethane to polyurethane is (2-20):(1-20):(5-30). According to the fluororesin-polyurethane self-stratification concrete protective coating provided by the invention, the self-stratification of a single component of fluororesin-polyurethane is realized and the interlaminar adhesive force is improved by using incompatibility of fluororesin and polyurethane. The fluororesin is removed to a surface to form a surface hydrophobic layer to achieve the advantages of hydrophobic property, weathering resistance, corrosion resistance, acid-alkali resistance and light-color retention of the fluororesin; but the polyurethane sinks to the bottom, a lot of polar groups in the structure of the polyurethane are used for combining with a substrate or a modified substrate to achieve the advantages of high strength and strong adhesive force of the polyurethane.
Fluororesin-polyurethane self-stratification concrete protective coating and preparation method thereof
The invention provides a fluororesin-polyurethane self-stratification concrete protective coating consisting of fluororesin, fluorine modified polyurethane, polyurethane and an organic solvent, wherein the total solid content of resin is 35-60wt%, and the mass ratio of fluorocarbon resin to fluorine modified polyurethane to polyurethane is (2-20):(1-20):(5-30). According to the fluororesin-polyurethane self-stratification concrete protective coating provided by the invention, the self-stratification of a single component of fluororesin-polyurethane is realized and the interlaminar adhesive force is improved by using incompatibility of fluororesin and polyurethane. The fluororesin is removed to a surface to form a surface hydrophobic layer to achieve the advantages of hydrophobic property, weathering resistance, corrosion resistance, acid-alkali resistance and light-color retention of the fluororesin; but the polyurethane sinks to the bottom, a lot of polar groups in the structure of the polyurethane are used for combining with a substrate or a modified substrate to achieve the advantages of high strength and strong adhesive force of the polyurethane.
Fluororesin-polyurethane self-stratification concrete protective coating and preparation method thereof
WANG RUI (author) / LI LEI (author) / TIAN QIAN (author) / WANG HONGSONG (author) / WANG WEI (author) / WANG WENBIN (author) / JIANG YONGJING (author)
2015-04-22
Patent
Electronic Resource
English
IPC:
C09D
Überzugsmittel, z.B. Anstrichstoffe, Firnisse oder Lacke
,
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS
/
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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