Waterborne polyurethane modified epoxy steel structure anti-corrosive paint and preparation method thereof

A water-based polyurethane and anti-corrosion coating technology, applied in the coating field, can solve the problems of poor anti-aging, anti-pulverizing performance, insufficient flexibility, etc., and achieve the effects of low price, improved safety, and good coating film strength
CN101735706AInactive Publication Date: 2010-06-16TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TONGJI UNIV
Publication Date
2010-06-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the paint technical field, in particular relates to a waterborne polyurethane modified epoxy steel structure anti-corrosive paint and a preparation method thereof. The component A of the paint is a dispersion of modified E-20 and the component B used as curing agent is a waterborne dispersion which is prepared through modification by using epoxy and hydrophilic groups. The system has the advantages of common waterborne paints, overcomes the defects of the waterborne epoxy anti-corrosive paint and has the advantages of polyurethane and epoxy materials. The waterborne epoxy anti-corrosive paint prepared by using the system as the base material has great development prospect in the field of steel structures such as bridges, pipes, containers, industrial plants and public facilities.
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Description

technical field

[0001] The invention belongs to the technical field of coatings, and in particular relates to a water-based polyurethane modified epoxy steel structure anticorrosion coating and a preparation method thereof. Background technique

[0002] With the increasingly stringent requirements of environmental protection, the research of low VOC or zero VOC and its HAPs (hazardous air pollution) water-based coatings, in order to develop new products that meet the needs of the market, is an important development direction of coatings.

[0003] When water-based epoxy resin is used as a coating for steel structures, wood and other substrates, it has high hardness and tensile strength after curing, high gloss of the coating film, good adhesion to various substrates, excellent chemical resistance, and electrical insulation. With the advantages of good performance, various varieties, low price and easy availability, it has been widely used in the coating field of various steel...

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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