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Compound type net taste photoinitiator and UV curing coating

A photoinitiator, composite technology, applied in polyester coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the effect of photoinitiator's deodorization effect, which has not been reported yet, less use, and photoinitiation efficiency. Low problems, to achieve the effect of optimizing curing rate and material properties, deodorizing properties, and high initiation efficiency

Active Publication Date: 2018-06-29
CARPOLY CHEM GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, inorganic photoinitiators or macromolecular photoinitiators are less used because their photoinitiation efficiency is slightly lower than that of organic photoinitiators and their prices are more expensive.
[0006] Odor-cleaning coating technology is one of the development directions of UV-curable coatings, but so far, the influence of photoinitiators on the odor-cleaning effect of UV-curable coatings has not been reported

Method used

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  • Compound type net taste photoinitiator and UV curing coating
  • Compound type net taste photoinitiator and UV curing coating
  • Compound type net taste photoinitiator and UV curing coating

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0044] The present embodiment adopts a kind of compound type net taste photoinitiator, comprises the component of following percentage by weight:

[0045] Nano Zinc Oxide 30%

[0046] Macromolecular photoinitiator 70%.

[0047] The preparation method of the above-mentioned nano-zinc oxide: dry the zinc oxide in a vacuum oven at a temperature of 60° C. and a relative vacuum pressure of about -0.095 MPa for 3 hours, and then use ultrasonic treatment for 10 minutes to obtain a nano-zinc oxide with an average diameter of 127 nanometers. , the purity is greater than 99%;

[0048] Synthesis of macromolecular photoinitiator: Weigh 2-hydroxy-2-methyl-1-phenyl-1-propanone, isophorone diisocyanate and hydroxyethyl acrylate, and the molar ratio is 1.05:1:1; React isophorone diisocyanate with hydroxyethyl acrylate at 50°C for 2 hours, then add 2-hydroxy-2-methyl-1-phenyl-1-propanone and 1-hydroxycyclohexyl phenyl ketone , reacted at 60°C for 4 hours;

[0049] Preparation of odor-free ...

Embodiment 2

[0055] The present embodiment adopts a kind of compound type net taste photoinitiator, comprises the component of following percentage by weight:

[0056] Nano Zinc Oxide 40%

[0057] Macromolecular photoinitiator 60%.

[0058] The preparation method of the above-mentioned nano-zinc oxide: dry the zinc oxide in a vacuum drying oven at a temperature of 60° C. and a relative vacuum pressure of about -0.095 MPa for 3 hours, and then use ultrasonic treatment for 20 minutes to obtain a nano-zinc oxide with an average diameter of 108 nanometers. , the purity is greater than 99%;

[0059] Synthesis of macromolecular photoinitiator: Weigh 1-hydroxycyclohexyl phenyl ketone, isophorone diisocyanate and hydroxyethyl methacrylate, and its molar ratio is 1.1:1:1; The isocyanate and hydroxyethyl methacrylate were first reacted at 30°C for 4 hours, then added 1-hydroxycyclohexyl phenyl ketone, and reacted at 70°C for 3 hours;

[0060] Preparation of odor-free photoinitiator: add the above...

Embodiment 3

[0066] The present embodiment adopts a kind of compound type net taste photoinitiator, comprises the component of following percentage by weight:

[0067] Nano Zinc Oxide 30%

[0068] Macromolecular photoinitiator 70%.

[0069] The preparation method of the above-mentioned nano-zinc oxide: dry the zinc oxide in a vacuum oven at a temperature of 60°C and a relative vacuum pressure of about -0.095MPa for 3 hours, and then use ultrasonic treatment for 30 minutes to obtain a nano-zinc oxide with an average diameter of 82 nanometers. , the purity is greater than 99%;

[0070] Synthesis of macromolecular photoinitiator: Weigh 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone, isophorone diisocyanate and hydroxypropyl acrylate, and its molar ratio is 1.05 :1:1; react isophorone diisocyanate and hydroxypropyl acrylate at 50°C for 2 hours, then add 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone , reacted at 80°C for 3 hours;

[0071] Preparation of odor-free photoinitiator...

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Abstract

The invention relates to a compound type odor-less light initiator and an ultraviolet curing coating material. The compound type odor-less light initiator is prepared from the following components in percentage by weight: 30 to 70 percent of zinc oxide and 30 to 70 percent of macromolecular light initiator, wherein the macromolecular light initiator is prepared from a hydroxy-containing light initiator, isocyanate and hydroxy-containing acrylic acid. The compound type odor-less light initiator disclosed by the invention is capable of effectively solving a smell problem generated by volatile organic small molecules released after photolysis of an organic light initiator, the initiation efficiency is high, and the conversion rate of the ultraviolet curing coating material can be increased, so that the smell and volatile organic matters released by residual unreacted raw materials in the ultraviolet curing coating material can be further reduced, and a paint film after photopolymerization is odor-less and is good in performance.

Description

technical field [0001] The invention relates to a photoinitiator, in particular to a compound odor-cleaning photoinitiator and an ultraviolet light curing coating. Background technique [0002] UV-curable coatings contain almost no volatile organic solvents, and have the advantages of low energy consumption, fast response, clean and environmentally friendly. A UV-curable coating formulation system includes at least the following three components: ① Photosensitive resin (or prepolymer, oligomer), is the source of the most basic physical and chemical properties of coatings and paint films, and determines the overall formula The curing rate of the system and the performance of the material; ②Reactive diluent, mainly used to adjust the viscosity of the coating formulation system; ③Photoinitiator, under the irradiation of ultraviolet light, produces active groups that can initiate photopolymerization of the above two substances (free radical or cation). [0003] Odor-free coati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F2/48C09D163/10C09D175/14C09D167/06C08G18/75C08G18/28C08G18/32
CPCC08F2/48C08G18/2825C08G18/284C08G18/3215C08G18/755C08L2205/03C09D163/10C09D167/06C09D175/14C08L75/14C08L67/06C08L63/10
Inventor 叶代勇冯钦
Owner CARPOLY CHEM GRP
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