Unlock instant, AI-driven research and patent intelligence for your innovation.

Low-angle-dependence red cadmium sulfide structural color film and preparation method thereof

A cadmium sulfide-dependent technology, applied in the direction of cadmium sulfide, etc., to achieve wide application prospects, low external environmental requirements, and solve the effect of easy fading

Inactive Publication Date: 2019-03-12
SHAANXI UNIV OF SCI & TECH
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] So far, no literature has reported on the use of cadmium sulfide to prepare short-range ordered structures and high-saturation structural color materials.

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
  • Low-angle-dependence red cadmium sulfide structural color film and preparation method thereof
  • Low-angle-dependence red cadmium sulfide structural color film and preparation method thereof
  • Low-angle-dependence red cadmium sulfide structural color film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0047] The preparation method of the low angle dependence red cadmium sulfide structural color thin film of the present invention comprises the following steps:

[0048] 1) According to the ratio of (20-30) g: 80 mL, fully dissolve cadmium nitrate tetrahydrate in diethylene glycol, and let it stand to prepare the cadmium source; according to thiourea: diethylene glycol = (6-10) g: 80mL ratio, fully dissolve thiourea in diethylene glycol to obtain a uniform solution as a sulfur source;

[0049] 2) According to the ratio of (0.6-1.0) g: 60mL, dissolve polyvinylpyrrolidone in diethylene glycol, heat and magnetically stir to obtain a uniform mixed base solution; heat up, add sulfur source and cadmium source in step 1) successively , to react for a period of time; the ratio of the sulfur source to the mixed base solution is (180-240) μL: 60 mL, and the ratio of the cadmium source to the mixed base solution is (180-240) μ L: 60 mL.

[0050] 3) After the reaction in step 2), place i...

Embodiment 1

[0060] A method for preparing a low-angle-dependent red cadmium sulfide structural color thin film, comprising the following steps:

[0061] 1) According to the ratio of 20g:80mL, stir cadmium nitrate tetrahydrate for 6h to fully dissolve in 80mL diethylene glycol, and let it stand for 1h to prepare the cadmium source; according to the ratio of thiourea:diethylene glycol=6g:80mL, the sulfur Urea was dissolved in 80mL of diethylene glycol, and magnetically stirred for 6 hours to mix well and obtain a uniform solution as a sulfur source.

[0062] 2) According to the ratio of 0.6g: 60mL, dissolve polyvinylpyrrolidone (PVP) in 60mL diethylene glycol, heat and magnetically stir for 2 hours, rotate at 500r / min, and heat at 60°C to obtain a uniform mixture Base solution; warm up to 190°C, first add 180 μL of the sulfur source in step 1), and then add 180 μL of the cadmium source in step 1).

[0063] 3) After step 2) was reacted for 6 minutes, it was quickly cooled in ice water at 10...

Embodiment 2

[0067] A method for preparing a low-angle-dependent red cadmium sulfide structural color thin film, comprising the following steps:

[0068] 1) According to the ratio of 25g:80mL, stir cadmium nitrate tetrahydrate for 6h to fully dissolve in 80mL diethylene glycol, and let it stand for 1h to prepare the cadmium source; according to the ratio of thiourea:diethylene glycol=8g:80mL, the sulfur Urea was dissolved in 80mL of diethylene glycol, and magnetically stirred for 6 hours to mix well and obtain a uniform solution as a sulfur source.

[0069] 2) According to the ratio of 0.8g: 60mL, dissolve polyvinylpyrrolidone (PVP) in 60mL of diethylene glycol, heat and magnetically stir, the stirring time is 2h, the rotation speed is 500r / min, and the heating temperature is 60°C to obtain a uniform mixture base solution; warm up to 190°C, first add 200 μL of the sulfur source in step 1), and then add 200 μL of the cadmium source in step 1).

[0070] 3) After step 2) was reacted for 6 mi...

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 invention provides a low-angle-dependence red cadmium sulfide structural color film and a preparation method thereof. The method comprises the following steps of: step 1, respectively preparing acadmium source, a sulfur source and a mixed base solution; step 2, adding the sulfur source and the cadmium source into the mixed base solution, and performing high-temperature reaction to prepare a seed solution; step 3, after completing the reaction in the step 2, placing the obtained seed solution in ice water, cooling rapidly to room temperature, and centrifuging to retain bright yellow cleartransparent supernatant; step 4, adding cadmium nitrate tetrahydrate and thiourea into the supernatant; reacting for 50-70 min at 55-65 DEG C, then heating to 160-170 DEG C to react for 60-120 min, washing, and then ultrasonically dispersing in an ethanol solvent; and step 5, carrying out film coating by adopting a vertical sedimentation method. According to the cadmium sulfide structural color film obtained by the invention, the structure has isotropy, the color is stable, the color is to liable to fade, the angle dependence is weak, and the color does not change with the change of an observation angle.

Description

technical field [0001] The invention belongs to the technical field of structural color material preparation, and in particular relates to a low-angle-dependent red cadmium sulfide structural color film and a preparation method thereof. Background technique [0002] Materials with high and low refractive indices are arranged alternately to form a periodic structure, that is, photonic crystals. Light of a specific wavelength cannot pass through the photonic band gap generated by it, thus producing structural color. Structural color is a kind of physical coloration, which has the advantages of bright color, never fading, environmental friendliness, and short preparation cycle. [0003] In recent years, through the ordered self-assembly method of colloidal microspheres, opal structure photonic crystals can be formed, and finally the light forms on the surface of photonic crystals with a periodic structure through dry radiation, diffraction, scattering, etc., resulting in colorf...

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 Applications(China)
IPC IPC(8): C03C17/22C01G11/02
CPCC01G11/02C01P2002/72C01P2004/03C01P2004/32C01P2004/61C03C17/22
Inventor 王芬薛雨朱建锋罗宏杰武文玲郭江赵婷方园
Owner SHAANXI UNIV OF SCI & TECH