Method for preparing siloxane and nano silicon dioxide double modified ultraviolet curing aqueous polyurethane dispersion

A nano-silica, water-based polyurethane technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve problems such as poor compatibility and easy agglomeration, and achieve the effects of inhibiting agglomeration, good repeatability, and easy reaction control.
CN101942192BActive Publication Date: 2014-09-24RUNTAI CHEM TAIXING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RUNTAI CHEM TAIXING CO LTD
Publication Date
2014-09-24

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Abstract

The invention relates to a method for preparing a siloxane and nano silicon dioxide double modified ultraviolet curing aqueous polyurethane dispersion, belonging to the technical field of ultraviolet curing aqueous paint. The method comprises the following steps of: synthesizing bishydroxy siloxane; preparing the bishydroxy siloxane with a diisocyanate compound, polyether glycol, polyhydroxy carboxylic acid and an unsaturated double bond acrylate monomer into an organic siloxane modified polyurethane prepolymer through an acetone method; and then adding an amine compound and water for salifying and emulsifying, meanwhile, in the processes, adding nano silicon dioxide to prepare the siloxane and nano silicon dioxide double modified ultraviolet curing aqueous polyurethane dispersion. Through the organic siloxane modified polyurethane, the interaction of the polyurethane with the nano silicon dioxide can be effectively enhanced, and the problems of easy agglomeration, poor compatibility, and the like of the nano silicon dioxide in the polyurethane dispersion are solved. The dispersion has good application prospect in the fields of surface coatings of high scratches, wear woodware, metal, plastic rubber, and the like.
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Description

technical field

[0001] The invention relates to a method for preparing a water-based polyurethane resin double-modified by organosiloxane and inorganic nano-silica for a new type of water-based paint, and mainly relates to a method for preparing a green and environment-friendly novel UV-curable paint. The invention belongs to the technical field of ultraviolet curing water-based paint. Background technique

[0002] At present, water-based coatings have become the main direction of the development of environmentally friendly coatings, especially the technology of water-based ultraviolet (UV) curing coatings has attracted increasing attention because of its compliance with the concepts of high efficiency, environmental protection, energy saving, and clean production. In addition, water-based light-curing coatings combine many advantages of both traditional UV curing technology and water-based coating technology, and become a new coating technology with great development and ap...

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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