A class of double electron-donating aromatic amine photosensitizer and its application in visible LED light curing

An electron-donating and aromatic amine technology, applied in the field of photofunctional organic molecules, can solve the problems of poor sensitivity enhancement, low photocuring efficiency, and long photocuring time, and achieve long photosensitive wavelength band, strong light absorption ability, and low cost. cheap effect
CN105669591BActive Publication Date: 2018-01-19BEIJING UNIV OF CHEM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING UNIV OF CHEM TECH
Publication Date
2018-01-19

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Abstract

The invention discloses a double-donor aromatic amine photosensitizer, structurally characterized by having an aromatic amine double-donor conjugated group and a structurally general formula shown as I. Compared with commonly reported visible light initiating systems, this photosensitizer has high absorbability in a visible light area, is simple to synthesize, is applicable to visible LED light source free radicals and cationic curing systems and has application potential.
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Description

technical field

[0001] The invention belongs to the technical field of photofunctional organic molecules, and in particular relates to a class of double electron-donating aromatic amine photosensitizer and its application in photocuring of visible LED light sources. Background technique

[0002] UV curing technology has been widely used in many industrial fields such as: printing, ink, coating, adhesives, optical devices, electronic circuits, etc. In recent years, it has also been involved in emerging digital storage, three-dimensional precision machining and other fields. Compared with thermal polymerization or thermal curing, it has the characteristics of fast curing rate, simple equipment, small footprint, room temperature operation, less pollution, and excellent performance of cured products. It is an environmentally friendly green technology. However, there are many weaknesses in UV curing: ① UV radiation is harmful to the human body, poor in environmental protection a...

Claims

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