A kind of bio-based antibacterial ultraviolet fluorescent coating and preparation method thereof

A fluorescent coating, bio-based technology, applied in luminescent coatings, antifouling/underwater coatings, coatings, etc., can solve problems such as harm to human health, and achieve the effects of low cost, short process flow and simple preparation method

Active Publication Date: 2022-06-21
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above existing problems, the purpose of the present invention is to provide a bio-based antibacterial ultraviolet fluorescent coating, to overcome the defects of traditional inorganic fluorescent materials that cause harm to human health, and to prepare bio-based coatings that are antibacterial, green, environmentally friendly, and have renewable raw materials. UV fluorescent paint

Method used

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  • A kind of bio-based antibacterial ultraviolet fluorescent coating and preparation method thereof
  • A kind of bio-based antibacterial ultraviolet fluorescent coating and preparation method thereof
  • A kind of bio-based antibacterial ultraviolet fluorescent coating and preparation method thereof

Examples

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preparation example Construction

[0040] The preparation method of bio-based antibacterial ultraviolet fluorescent coating, the preparation method is carried out according to the following steps:

[0041] S1. Dissolve 5',5-diallyl-2,2'-biphenol and 1,6-hexanedithiol in an organic solvent at a stirring speed of 200-400r / min at room temperature to obtain mixture.

[0042] Wherein, the mass fraction ratio of 5',5-diallyl-2,2'-biphenol and 1,6-hexanedithiol is 65-80: 20-35, and the mass fraction of solute and solvent The ratio is 10-20:80-90.

[0043]The organic solvent is one of toluene or acetone or DMSO or DMF.

[0044] S2. Add catalyst b to the mixed solution obtained in step S1, and the mass ratio of catalyst b to solute in S1 is 1-5:100; and the temperature is raised to 60-100 ° C, stirring at 600-800 r / min The reaction rate is 4-6h.

[0045] S3. The obtained product solution after the reaction of step S2 is added to the cyclohexane solution, stirred for 20min at a speed of 500~1000r / min, and then left s...

Embodiment 1

[0054] Preparation method of bio-based antibacterial ultraviolet fluorescent paint.

[0055] Prepare as above:

[0056] S1. Dissolve 6.5g 5',5-diallyl-2,2'-biphenol and 3.5g 1,6-hexanedithiol in 90g toluene at room temperature at a stirring speed of 200r / min , to obtain a mixed solution.

[0057] S2. Add 100 mg of azobisisobutyronitrile to the mixed solvent obtained in step S1, raise the temperature to 60 °C, and react at a stirring speed of 600 r / min for 6 h.

[0058] S3. The product solution obtained in step S2 was added to 900 g of cyclohexane solution, stirred at a speed of 500 r / min for 20 min, and then allowed to stand.

[0059] S4. Remove the supernatant of the solution obtained in step S3, collect the gelatinous precipitate in the lower layer, and dry at 30° C. and 0.09 Mpa for 30 min to obtain a prepolymer.

[0060] S5. The prepolymer obtained in step S4 and 1.1 g of trimethylolpropane tris(3-mercaptopropionic acid) ester are stirred uniformly at 80° C. to be fully...

Embodiment 2

[0068] Preparation method of bio-based antibacterial ultraviolet fluorescent paint.

[0069] Prepare as above:

[0070] S1. Dissolve 8.0g 5',5-diallyl-2,2'-biphenol and 2.0g 1,6-hexanedithiol in 100g toluene at a stirring speed of 200r / min at room temperature , to obtain a mixed solution.

[0071] S2. Add 500 mg of azobisisobutyronitrile to the mixed solvent obtained in step S1, raise the temperature to 100 °C, and react at a stirring speed of 600 r / min for 4 h.

[0072] S3. The product solution obtained in step S2 was added to 1900 g of cyclohexane solution, stirred at a speed of 500 r / min for 20 min, and then allowed to stand.

[0073] S4. Remove the supernatant of the solution obtained in step S3, collect the gelatinous precipitate in the lower layer, and dry at 30° C. and 0.09 Mpa for 30 min to obtain a prepolymer.

[0074] S5. The prepolymer obtained in step S4 and 2.5 g of trimethylolpropane tris(3-mercaptopropionic acid) ester are stirred uniformly at 80° C. to be fu...

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Abstract

The invention relates to an ultraviolet fluorescent paint, in particular to a bio-based antibacterial ultraviolet fluorescent paint and a preparation method thereof, belonging to the biomaterial synthesis technology. The bio-based antibacterial ultraviolet fluorescent coating is composed of a prepolymer and a polythiol compound in a catalyst 1,1'-(methylenedi-4,1-phenylene)bis[2-hydroxy-2-methyl-1- Acetone] (Irgacure127) under the role of cross-linking reaction in the system. Among them, the prepolymer is obtained by polymerization of 5',5-diallyl-2,2'-diphenol and 1,6-hexanedithiol under the action of the catalyst azobisisobutyronitrile (AIBN) linear polymer. The 5',5-diallyl-2,2'-biphenyldiol in the present invention comes from the bio-based compound of Magnoliaceae deciduous arbor plants. The bio-based ultraviolet fluorescent coating has antibacterial, green and environmental protection, and renewable raw materials And the characteristics of biodegradability, simple process, and wide source of raw materials; and there is no risk of toxicity to the human body, which greatly expands the use of ultraviolet fluorescent coatings.

Description

technical field [0001] The invention relates to an ultraviolet fluorescent coating, in particular to a bio-based antibacterial ultraviolet fluorescent coating and a preparation method thereof, belonging to the synthesis technology of biological materials. Background technique [0002] With the improvement of people's living standards and the continuous emergence of new materials, the needs of people and the working environment have new requirements for printing. Fluorescent printing is playing an increasingly important role in military and police logos, anti-counterfeiting technology, and costumes for stage performances. At present, fluorescent printing is mostly composed of fluorescent coatings, adhesives, cross-linking agents, thickeners and other additives; among them, fluorescent coatings play a fluorescent role, and fluorescent coatings refer to coatings that emit light when irradiated by ultraviolet rays. [0003] Most of the fluorescent coatings on the market are ino...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/22C09D5/14C09D181/02C09D7/63
CPCC09D5/22C09D5/14C09D181/02C09D7/63C08K5/37
Inventor 杨红军王宗垒王玉丽王朝荣周应山刘欣庄燕徐卫林
Owner WUHAN TEXTILE UNIV
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