Self-cross-linking waterborne light-curing polyurethane, preparation method and applications thereof

A photocuring and self-crosslinking technology, applied in the field of photocuring, can solve the problems of limited photoinitiation efficiency, limited degree of crosslinking and curing, and few double bond molecules, and achieve enhanced initiation efficiency, fast curing speed and high photoinitiation efficiency. Effect
CN110835397AActive Publication Date: 2020-02-25JIANGSU BIOSURF BIOTECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU BIOSURF BIOTECH CO LTD
Publication Date
2020-02-25

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Abstract

The invention relates to self-cross-linking waterborne light-curing polyurethane, a preparation method and applications thereof, wherein the polyurethane is mainly obtained by carrying out a reactionon components including polyol and isocyanate, wherein the polyol comprises unsaturated polyol containing tertiary amine groups and carbon-carbon double bonds, polyol containing photosensitive groups,polyalcohol and polyol containing carboxyl groups, and the polyurethane simultaneously contains carbon-carbon double bonds and photosensitive groups so as to be subjected to spontaneous polymerization and cross-link curing under ultraviolet irradiation without the addition of a photoinitiator. According to the invention, the polyurethane structure is flexible in design, and the overall chemical structure and the composition of each unit can be adjusted according to requirements, so that a polyurethane coating film with excellent performance is obtained.
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Description

technical field

[0001] The invention belongs to the field of photocuring technology, and more specifically, the invention relates to self-crosslinking water-based photocuring polyurethane. Background technique

[0002] Ultraviolet light curing technology is a process technology that takes into account both environmental and economic benefits. Compared with traditional curing technology, it has the characteristics of short curing time, simple equipment, excellent coating performance, and environmental friendliness. It is widely used in aerospace, electronics, etc. , medical and health and other fields have been widely used. Among them, as a typical representative of the application of this technology, UV-curable coatings such as photo-curable polyurethane have the characteristics of low energy consumption, fast curing speed, and excellent coating performance, so they have achieved rapid development. Among them, water-based UV-curable polyurethane has the advantages of no pol...

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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