Preparation method of waterborne polyurethane acrylate printing binding agent

A polyurethane acrylate and water-based polyurethane technology, which is applied in the field of preparation of water-based polyurethane acrylate printing adhesives, can solve problems such as poor back tackiness, poor hydrophobic performance, and stiff hand feeling, and achieve increased surface roughness and good hydrophobic performance , good flexibility
CN109338752AActive Publication Date: 2019-02-15ZHEJIANG KEFENG ORGANIC SILICON CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG KEFENG ORGANIC SILICON CO LTD
Publication Date
2019-02-15

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Abstract

The invention relates to a pigment printing binding agent, in particular to a preparation method of a waterborne polyurethane acrylate printing binding agent. The preparation method comprises the following steps: 1), adding first monomer composition to deionized water, adding 1,4-butanediol, 2,2-bis(hydroxymethyl)propionic acid and dibutyltin dilaurate for reaction to obtain a polyurethane prepolymer; 2), adding hydroxyethyl methacrylate to the polyurethane prepolymer to obtain double bond terminated polyurethane; 3), adding second monomer composition to N,N-dimethylacetamide to obtain an emulsifier; 4), adding the emulsifier and glycidyl methacrylate to waterborne polyurethane to obtain waterborne polyurethane acrylate emulsion; 5), coating the emulsion with silicon dioxide particles. Thebinding agent has good flexibility, and binding strength between layers is larger; moreover, a rough surface is formed by fluorine-containing acrylate and the silicon dioxide particles, and the binding agent has better hydrophobic performance.
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Description

technical field

[0001] The invention relates to a pigment printing adhesive, in particular to a preparation method of a water-based polyurethane acrylate printing adhesive. Background technique

[0002] Acrylic adhesives have received great attention since then due to their many advantages, such as high bonding performance, fast curing speed, wide adaptability, excellent mechanical properties, and no selectivity to bonding objects. Many defects are also exposed, such as sticky film, poor water resistance and temperature resistance, poor moisture permeability and air permeability, low temperature film forming property, poor anti-back tack at high temperature, relatively low elongation, etc. In response to these problems, many modification studies have been carried out on the structure of this type of adhesive, but most of the modification studies are only aimed at a certain defect, and can simultaneously improve properties such as water resistance, temperature resistance and ...

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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