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

Near-infrared absorbing white material and preparation method thereof

A near-infrared and white technology, which is applied in the field of near-infrared-absorbing white substances and their preparation, can solve the problems of not revealing the structural formula of substances and the like

Active Publication Date: 2018-11-23
BUSEONG POLYCOM
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent synthesizes a white and granular copper phosphate compound that meets the objectives of the present invention, but does not disclose the structural formula of the substance, and the substances input during the synthesis need to be treated for the by-products of boric acid and fluoboric acid other than copper phosphate

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
  • Near-infrared absorbing white material and preparation method thereof
  • Near-infrared absorbing white material and preparation method thereof
  • Near-infrared absorbing white material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0111] The first embodiment - preparation of copper pyrophosphate compound

[0112] In order to synthesize a copper pyrophosphate compound with a high whiteness, the reaction is carried out in a supersaturated aqueous solution state. Pour 530 ml of water into a 1 L beaker, pour 55 g of sodium pyrophosphate anhydride into it while maintaining the temperature at 60° C., and stir and dissolve it with a mechanical stirrer. 50 ml of water was poured into another beaker, and 68 g of copper chloride dihydrate was poured and stirred to dissolve while maintaining the temperature at 60°C.

[0113] While stirring the aqueous solution in which sodium pyrophosphate anhydride was dissolved, the copper chloride aqueous solution was slowly poured in, and then the aging reaction was carried out for a certain period of time. Filter and wash the white precipitate formed after the reaction, and redisperse it in 1kg of water, keeping the temperature at 60°C.

[0114] The precipitate aqueous solu...

no. 2 example

[0116] The second embodiment - preparation of copper pyrophosphate compound

[0117] 400 ml of water was poured into a 1 L beaker, and 68 g of potassium pyrophosphate anhydride was poured while maintaining a temperature of 60° C., and stirred and dissolved using a mechanical stirrer. 250 ml of water was poured into another beaker, and 103 g of copper sulfate pentahydrate was poured in while maintaining the temperature at 60° C., and stirred to dissolve.

[0118] The following process is the same as in Example 1, the acid treatment is carried out with phosphoric acid, and the pH is maintained at 3.5. After the reaction was completed, it was filtered, washed, and dried, and heat-treated at 750° C. to realize crystallization.

no. 3 example

[0119] The third embodiment - preparation of copper pyrophosphate compound

[0120] The copper pyrophosphate compound was synthesized by a general method, and it was used to compare the whiteness of the first embodiment and the second embodiment reacted in a supersaturated aqueous solution state. Pour 1000ml of water into a 2L beaker and pour 55g of sodium pyrophosphate at room temperature and stir to dissolve using a mechanical stirrer. 500 ml of water was poured into another beaker, and 68 g of copper chloride dihydrate was poured at room temperature, stirred and dissolved.

[0121] After the reaction was completed, it was filtered, washed and dried. The properties before and after heat treatment are shown in Table 1.

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

No PUM Login to View More

Abstract

The present invention relates to a white material which appears white in the visible light region and absorbs wavelengths in the near-infrared light region, a preparation method thereof, and use thereof and, more particularly, to a method for preparing a near-infrared absorbing material which has a whiteness (CIE L*) of 90 or higher in the visible light region and shows excellent particle preparation properties, and the use thereof in producing a product characterized by near-infrared absorption and antibacterial activity. To achieve the purpose of the present invention, selection is made of acopper pyrophosphate compound, which exhibits near-infrared absorption and antibacterial properties. Appearing green to blue, materials prepared using conventional techniques and methods have limitations in use whereas the material prepared according to the present invention has a high degree of whiteness and shows excellent microparticle properties, thus overcoming constraints attributed to colors. The copper pyrophosphate compound prepared finds applications and uses in various fields, including the use of near-infrared absorption properties in the prevention of forgery and modification ofsecurity products, machine reading, and the laser marking and welding of plastics, and the application of antibacterial activity to products added therewith.

Description

technical field [0001] The present invention relates to a kind of white substance that is white in the visible spectrum and can absorb the wavelength of the near-infrared spectrum and its preparation method. The preparation of white near-infrared absorbing substances with the wavelength of infrared spectrum also involves the following various uses and applied technologies: anti-counterfeiting, anti-alteration, equipment testing, etc. of security products using its absorption of near-infrared characteristics; Laser marking (marking), laser welding, etc.; to add it to the product to give antibacterial properties, etc. Background technique [0002] As the near-infrared absorbing substance of the present invention, the copper pyrophosphate compound is used in a wide range of fields, such as optical filters, anti-counterfeiting and equipment inspection inks (ink), plastic marking and soldering agents, etc. Antibacterial property imparted to various products, etc., the following ...

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
IPC IPC(8): C01G3/02C09D11/03C09D7/40D21H21/48B23K26/21B23K26/352
CPCD21H21/48C08K2003/328C09D7/61C09D11/03C09D11/037C09D11/38C01B25/168B23K26/21B23K26/352C01G3/02C09D11/00C01P2002/72C01P2002/88C01P2004/01C01P2006/60C08K3/32D06C29/00D21H17/67
Inventor 徐具元刘大晟金宝庆
Owner BUSEONG POLYCOM
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