A kind of preparation method and application of modified titanium dioxide as photoinitiator

A titanium dioxide and modification technology, which is applied in the field of preparation of modified titanium dioxide, can solve the problems of poor loading modification efficiency, insufficient efficiency of titanium dioxide photoinitiator, and efficiency that cannot meet the requirements of the application, and achieve the goal of improving the initiation efficiency Effect
CN112794933BActive Publication Date: 2022-04-15SUN YAT SEN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUN YAT SEN UNIV
Publication Date
2022-04-15

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Abstract

The invention belongs to the technical field of photocurable materials, and in particular relates to a preparation method and application of modified titanium dioxide as a photoinitiator. The invention first converts the Ti-OH bond structure on the surface of the titanium dioxide particle into a Ti-F bond structure , and then transform the Ti-F bond structure on the surface of the titanium dioxide particles into a titanium-carboxylate structure, thereby preparing the modified titanium dioxide. The prepared modified titanium dioxide has significant activity of photoinitiating the polymerization and crosslinking of acrylate monomers or / and resins, and can be used as a photoinitiator in the photocuring fields of white photocurable coatings and inks.
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Description

Technical field

[0001] The present invention belongs to the technical field of photocurable materials, and more particularly to the preparation method of modified titanium white powder as a photoinitiator. Background technique

[0002] Light curing is based on a monomer or resin containing a particular group, under synergistic action of the photoinitiator, a material processing technique for rapidly aggregating cross-linkage is rapidly aggregated by ultraviolet radiation, and the mechanism includes free radical light curing and Censored, so-called specific groups generally refer to (meth) acrylate or epoxy group. Based on photocurable coating, ink, ink, adhesives developed by photocurable techniques, and has a global coating and ink development direction due to dissolving without solvents. White photocurable coatings colored with titanium powder, ink, due to a higher proportion of titanium powder contained in its formulation, and titanium white powder can absorb most ultraviolet ...

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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