Polyurethane asphalt composite emulsion and use method thereof

A composite emulsion and polyurethane technology, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of slow curing speed, long surface drying and hard drying time, and reduced construction efficiency of waterborne polyurethane coatings, so as to shorten surface drying time and The effect of hard work time, good comprehensive physical and mechanical properties, and improvement of construction efficiency
CN105504781AInactive Publication Date: 2016-04-20SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2016-04-20
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to the field of preparation and application of composite materials, in particular to polyurethane asphalt composite emulsion and a use method thereof. The polyurethane asphalt composite emulsion is prepared from components A, B and C; the component A is polyurethane prepolymer emulsion; the component B is mixed emulsion of petroleum asphalt, fatty acid ethyl ester, carbodiimide, triethylene diamine, light calcium carbonate and a plasticizer; the component C is a mixed solution of a quaternary ammonium salt surfactant and low mass molecule alcohol. In the preparation and implementation processes, no organic solvents are used; meanwhile, the petroleum asphalt is low in toxicity and has small influence on the environment and the health of human; furthermore, the composite emulsion disclosed by the invention and a construction method thereof are higher in applicability to a base material, have a low requirement on the drying performance of the base material, and can be used in irregular surfaces. The method can promote rapid breakage of the composite emulsion, quick precipitation of particles and generation of crosslinking solidification, so that a composite coating film with high intensity, high low-temperature toughness and high watertightness can be obtained.
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Description

technical field

[0001] The invention relates to the field of preparation and application of composite materials, in particular to a polyurethane asphalt composite emulsion and a use method thereof. Background technique

[0002] In recent years, water-based coatings have attracted more and more attention in the coating field due to their good environmental friendliness, surface adaptability and construction safety. As a kind of water-based coating, two-component polyurethane coating has low film-forming temperature, strong adhesion, good wear resistance, high hardness, good chemical resistance and weather resistance, and has become an important development direction of water-based coatings. However, the curing speed of water-based polyurethane coatings is relatively slow, and its surface drying and hard drying time are relatively long, which reduces the construction efficiency, has a long construction period, and is vulnerable to damage before molding. Therefore, improving t...

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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