Weather-resistant multiple-layer alteration paint and preparation method thereof

A color-changing pigment and weather-resistant technology, applied in inorganic pigment treatment, chemical instruments and methods, layered products, etc., can solve problems such as the weather resistance problem of color-changing pigments, and achieve the effects of bright colors, advanced technology and easy operation.

Inactive Publication Date: 2008-06-18
河北欧克新型材料股份有限公司
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But none of them have yet solved the weather-resistant problem of color-shifting pigments

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The structure is (Ce 2 o 3 +ZrO 2 +SiO2 2 +Al 2 o 3 )|Fe 2 o 3 |SiO 2 |Fe 2 o 3 |SiO 2 (thin layer) | natural mica flakes

[0033] Add 1000 ml of deionized water into a 2.5-liter small reaction kettle, and then add 100 g of natural mica flakes with a thickness of 0.2-0.8um and a particle size of 10-150um, stir and heat to 75°C.

[0034] 1. Adjust the pH value of the above suspension to 8.5 [when adjusting the pH value, use 10% dilute hydrochloric acid or 15% sodium hydroxide solution by weight, the same below], meter and drop 50 ml concentration to contain SiO 2 18g / LNa 2 SiO 3 9H 2 O solution, dropwise add dilute hydrochloric acid solution with a weight ratio of 10% at the same time to maintain a constant pH value. After the addition is complete, stir at a constant temperature for 30 minutes. cladding;

[0035] 2. Adjust the pH value to 3.3, meter and drop 820 ml of ferric chloride solution with a concentration of 60g / L, and maintain a constant pH value b...

Embodiment 2

[0045] The structure is (Ce 2 o 3 +ZrO 2 +SiO2 2 +Al 2 o 3 )|TiO 2 +SnO 2 |SiO 2 +Al 2 o 3 |TiO 2 +SnO 2 |SiO 2 (thin layer) | synthetic mica flakes

[0046] Add 1000 ml of deionized water into a 2.5-liter small reaction kettle, and then add 150 g of synthetic mica flakes with a thickness of 0.5-2um and a particle size of 30-250um, stir and heat to 70°C.

[0047] 1. Adjust the pH value of the suspension to 8.5 (when adjusting the pH value, use 10% dilute hydrochloric acid or 15% sodium hydroxide solution by weight, the same below), and add 37 ml of SiO 2 18g / L Na 2 SiO 3 9H 2 O solution, while adding dropwise 10% dilute hydrochloric acid solution by weight to maintain a constant pH value, when the addition was complete, stir at a constant temperature for 30 minutes, at this time the first coating layer was formed, and the SiO in the solution 2 fully converted into the first coating layer;

[0048] 2. Adjust the pH value to 2.0 and add 8.8ml of tin tetrachlori...

Embodiment 3

[0058] The structure is (Ce 2 o 3 +ZrO 2 +SiO2 2 +Al 2 o 3 )|CoO+TiO 2 |B 2 o 3 +SiO2 2 |CoO+TiO 2 |SiO 2 (thin layer)|glass flake

[0059] Add 1000 ml of deionized water into a 2.5-liter small reaction kettle, and then add 200 g of glass flakes with a thickness of 1-5 um and a particle size of 50-500 um, stir and heat to 80 °C.

[0060] 1. Adjust the pH value of the above suspension to 8.5 [when adjusting the pH value, use 10% dilute hydrochloric acid or 15% sodium hydroxide solution by weight, the same below], and the concentration of SiO 2 18g / L 25ml Na 2 SiO 3 9H 2 O solution, while adding dropwise 10% dilute hydrochloric acid solution by weight to maintain a constant pH value, when the addition was complete, stir at a constant temperature for 30 minutes, at this time the first coating layer was formed, and the SiO in the solution 2 fully converted into the first coating layer;

[0061] 2. Adjust the pH value to 2.0, meter and drop the titanium tetrachlorid...

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
thicknessaaaaaaaaaa
refractive indexaaaaaaaaaa
refractive indexaaaaaaaaaa
Login to view more

Abstract

The invention provides weather resistant discoloration pigment with a plurality of layers and a preparation method thereof, which relates to the pigment field. At present, the technical effects of the pigment with a plurality layers are various, but the weather resistant problem is not solved. The weather resistant discoloration pigment with a plurality of layers of the invention uses a natural mica thin section (including a synthetic mica thin section and a glass thin section) as substrate. A plurality of layers of metal oxides are alternatively coated on the surface of the substrate. The first layer is SiO2 thin layer. The refractive index of the metal oxides in the second layer and the fourth layer is bigger than 20. The refractive index of the oxide in the third layer is smaller than 1.8. The outer layer is a colorless transparent weather resistant protection layer which consists of four oxides. The weather resistant discoloration pigment with a plurality of layers has the advantages of obvious discoloration effects, bright color and good weather resistant performance. The preparation method is to use a wet chemical hydrolysis process to coat a plurality of oxides on the surface of the substrate. The method has the advantages of reasonable structure, advanced process, easy operation and stable product quality and is applied to the industrialized production.

Description

technical field [0001] The invention relates to the field of pigments and their preparation, in particular to multilayer color-changing pigments and their preparation methods. Background technique [0002] Multi-layer color-changing pigments can show continuous color changes between two or more interference colors with different viewing angles. [0003] Oxide is coated on the flake substrate, and when the coating reaches a certain thickness, when the light hits the surface of the coating, part of the incident light waves are reflected, and part of the light is transmitted through the coating to the surface of the next layer, and another light wave is generated. The reflection and transmission of light will produce the phenomenon of "interference" of light. If n below represents the refractive index of the coating and d is the thickness of the coating, then nd is the optical thickness of the coating. Some reflected light [λ=2nd / N (N is a positive integer, λ is the wavelengt...

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): C09C3/06B32B19/04B32B17/00
Inventor 付建生彭义霆田晓辉刘景茂谭坤
Owner 河北欧克新型材料股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap