Water-based polyurethane

A technology of water-based polyurethane and water-based curing agent, applied in the direction of polyurea/polyurethane coating, polyurea/polyurethane adhesive, adhesive type, etc., can solve the problem of polyurethane insoluble in water and environmental protection, and achieve excellent chemical resistance properties, low viscosity, and good film adhesion
CN101638470AInactive Publication Date: 2010-02-03SHENZHEN OCEANPOWER NEW MATERIALS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN OCEANPOWER NEW MATERIALS TECH
Publication Date
2010-02-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a water-based polyurethane, which comprises the following components in portion by mass: 20 to 80 portions of polyol resin emulsion, 1 to 5 portions of zeolite powder, 0.2 to 0.5 portion of wetting dispersant, 0.4 to 0.8 portion of epoxy resin curing agent, 0.1 to 1 portion of organic drier, 20 to 80 portions of water-based curing agent, and water which is added based on the viscosity of the water-based polyurethane. The water-based polyurethane overcomes the defects that the conventional solvent-based polyurethane is water-insoluble, has poor environment protection property and the like, has the advantages of low viscosity, sprayability, convenient construction, no dangers of flammability and explosiveness, washability with water, good paint film adhesive force, excellent chemical resistance, high-degree abrasive resistance and tenacity and the like, can be used for preparing a varnish applied to water-based wood lacquers, can be used as a colored paint by adding color fillers, can be mixed with cement, is quickly cured for repair work, and can also be applied in the fields of floor coatings, binding agents, mold injection molding, electric appliance packaging, chemical grouting and the like.
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Description

technical field

[0001] The invention relates to a waterborne polyurethane. Background technique

[0002] Polyurethane is widely used in various industries: such as adhesives, foaming, elastomers, casting, injection molding, coatings and varnish, etc. Petroleum resin is an indispensable infrastructure material for transportation, construction and other industries, and its application is increasingly widespread. However, due to It is a water-insoluble oily polymer and cannot be mixed with hydrophilic materials. In recent years, with the application and research progress of polyurethane, people's awareness of environmental protection has been continuously strengthened, and the relevant labor protection, safety, As laws and regulations such as fire protection and environmental protection are becoming more and more perfect, a water-based polyurethane that can replace solvent-based polyurethane in the field of coatings and adhesives has become a demand. Contents of the invention...

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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