Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A polymer water-based coating that responds to ultraviolet light

A water-based coating, responsive technology, applied in polyester coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as single function, and achieve the effect of easy observation, easy preparation, and easy coating

Inactive Publication Date: 2016-08-17
SHANGHAI JIAOTONG UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a kind of polymer water-based coating that has response characteristic to ultraviolet UV light, to overcome the single function of polymer water-based coating in the prior art, and can not respond to ultraviolet light. question

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A polymer water-based coating that responds to ultraviolet light
  • A polymer water-based coating that responds to ultraviolet light

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The aqueous dispersion of nanopolymer particles containing spiropyran photochromic molecular groups described in this example is synthesized by a miniemulsion polymerization process, including the following steps:

[0044] 1) Prepare water phase: mix emulsifier, pH buffer solution and water, described emulsifier is sodium dodecylsulfonate, described pH buffer agent is sodium bicarbonate; Wherein sodium lauryl sulfate content 20mmol / L, sodium bicarbonate content 10mmol / L; the rest is water;

[0045] 2) Prepare the oil phase: mix the monomer, crosslinking agent and co-stabilizer, the monomer is selected from 0.1 part of N-hydroxyethylspiropyranyl methacrylate and 2 parts of methyl methacrylate, the resulting The crosslinking agent is selected from 0.1 part of 1,4-butanediol diacrylate, and the co-stabilizer is 0.05 part of polystyrene with a weight average molecular weight of 5000;

[0046] 3) Mixing and emulsification: the water phase and the oil phase are mixed and em...

Embodiment 2

[0051]Only change the commercially available Dulux white polyacrylate interior wall latex paint into Dulux white polyacrylate exterior wall white latex paint in step 2) of embodiment 1, and the rest are identical to embodiment 1.

[0052] Apply the polymer water-based paint prepared above to pure wood pulp thick paper by heat-sealing, and form a film after drying, put it in a transparent plastic bag and hang it at the place where the ultraviolet disinfection lamp is exposed. After a few minutes, the color changes from colorless or Very light purple to dark blue-purple. The color returns to its original light state after hours of exposure to white light.

Embodiment 3

[0054] Only change the cross-linking agent in step 1) of Example 1 into 0.2 part of divinylbenzene, and the rest are identical to Example 1.

[0055] Apply the polymer water-based paint prepared above to pure wood pulp thick paper by heat-sealing, and form a film after drying, put it in a transparent plastic bag and hang it at the place where the ultraviolet disinfection lamp is exposed. After a few minutes, the color changes from colorless or Very light purple to dark blue-purple. The color returns to its original light state after hours of exposure to white light.

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
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a polymer water-based paint with response characteristics to ultraviolet light, which is characterized in that the polymer water-based paint includes the following raw material components and parts by weight: nano 1 part of aqueous dispersion of polymer particles; 1 to 50 parts of white water-based paint; the white water-based paint is selected from one of acrylate white paint, water-based polyurethane white paint or alkyd resin white paint. The present invention designs and synthesizes a polymer water-based coating material with UV photoresponse characteristics. The synthesized polymer material will show the characteristics of ultraviolet photochromic effect because it contains methacrylic acid spiropyran functional group, and it has the characteristics of easy The advantages of preparation, real-time color development, and product safety are of creative value.

Description

technical field [0001] The invention relates to a nanocomposite material, in particular to a high molecular water-based paint with response characteristics to ultraviolet UV light. Background technique [0002] Ultraviolet light Electromagnetic radiation with shorter wavelengths than visible light but longer than X-rays. Ultraviolet light has a wavelength range of 10-400nm in the electromagnetic spectrum. This range begins at the short-wavelength limit of visible light and overlaps with the wavelengths of long-wavelength X-rays. Ultraviolet light is divided into A rays, B rays and C rays (referred to as UVA, UVB and UVC), and the wavelength ranges are 400-315nm, 315-280nm, 280-190nm respectively. Sterilization is the most common use function of ultraviolet light. Because ultraviolet rays have strong lethality to organisms, it can be used to deal with bacteria and viruses. However, special attention should be paid to the fact that these sterilization equipment can also ha...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D175/04C09D167/08C09D7/12
Inventor 张青张沛怡张诣卓周寅宁罗正鸿
Owner SHANGHAI JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com