Titanium dioxide for outdoor paint and preparation method

A technology of titanium dioxide and coatings, applied in the direction of polyester coatings, chemical instruments and methods, coatings, etc., can solve the problems of thixotropy, poor slurry filtration and washing performance, false thickening, etc., and achieve improved weather resistance and light shielding Catalytic activity, effect of improving dispersibility

Active Publication Date: 2020-08-14
LOMON BILLIONS GRP CO LTD
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the silicon oxide film is generally not carried out alone, and the separate film will cause the filtration and washing performance of th

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
  • Titanium dioxide for outdoor paint and preparation method
  • Titanium dioxide for outdoor paint and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Pump the pulverized and sand-milled slurry into the coating tank, add water to dilute the slurry concentration to 300g / L (based on TiO 2 At the same time, the slurry was heated to 60°C with steam; within 30 minutes, TiOCl, which accounted for 0.1% of the mass fraction of titanium dioxide in the slurry, was added in parallel. 2 solution (with TiO 2 meter) and 0.1% ZrOCl 2 solution (as ZrO 2 meter), and use NaOH to control the pH of the slurry to 8.0, and homogenize for 20 minutes; raise the temperature of the slurry to 90°C, adjust the pH of the slurry to 10.0 with NaOH solution, and add 1.0% Na within 20 minutes 2 SiO 3 solution (as SiO 2 meter), homogenize for 20min; use dilute H 2 SO 4 Adjust the pH of the slurry to 6.5 within 120 minutes, homogenize for 30 minutes; cool the slurry to 60°C, adjust the pH to 8.0, and add 0.1% NiSO 4 (as NiO) solution and X% NaAlO 2 solution (as Al 2 o 3 meter), and maintain the pH of the slurry at 8.0, until the NiSO 4 After...

Embodiment 2

[0064] Pump the pulverized and sand-milled slurry into the coating tank, add water to dilute the slurry concentration to 300g / L (based on TiO 2 At the same time, the slurry was heated to 60°C with steam; 0.3% TiOCl was added concurrently within 60 minutes 2 and 0.3% ZrOCl 2 , and use NaOH to control the pH of the slurry to 8.5, and homogenize for 30 minutes; raise the temperature of the slurry to 90°C, adjust the pH of the slurry to 10.2 with NaOH solution, and add 2.0% Na within 30 minutes 2 SiO 3 solution, homogenize for 30min; use dilute H 2 SO 4 Adjust the pH of the slurry to 6.8 within 120 minutes, homogenize for 30 minutes; cool the slurry to 60°C, adjust the pH to 8.3, and add 0.3% NiSO 4 (as NiO) solution and X% NaAlO 2 solution (as Al 2 o 3 meter), and maintain the pH of the slurry at 8.3, until the NiSO 4 After the solution has reacted completely, (4-X)% NaAlO 2 solution and dilute H 2 SO 4 Parallel flow, the total addition time of sodium metaaluminate is ...

Embodiment 3

[0066] Pump the pulverized and sand-milled slurry into the coating tank, add water to dilute the slurry concentration to 300g / L (based on TiO 2 At the same time, the slurry was heated to 60°C with steam; 0.5% TiOCl was added concurrently within 60 minutes 2 and 0.5% ZrOCl 2 , and use NaOH to control the pH of the slurry to 9.0, and homogenize for 30 minutes; raise the temperature of the slurry to 90°C, adjust the pH of the slurry to 10.3 with NaOH solution, and add 3.0% Na within 30 minutes 2 SiO 3 solution, homogenize for 30min; use dilute H 2 SO 4 Adjust the pH of the slurry to 6.8 within 150 minutes, homogenize for 30 minutes; cool the slurry to 60°C, adjust the pH to 8.5, and add 0.5% NiSO 4 solution with X% NaAlO 2 solution, and maintain the pH of the slurry at 8.5, until the NiSO 4 After the solution has reacted completely, (5-X)% NaAlO 2 solution and dilute H 2 SO 4 Parallel flow, adding sodium metaaluminate for 120 minutes, homogenizing for 30 minutes; within ...

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 discloses titanium dioxide for outdoor paint. The titanium dioxide comprises a titanium dioxide base material and a coating layer located on the surface of the titanium dioxide base material, and the coating layer sequentially comprises a titanium/zirconium composite coating layer, a silicon coating layer, a transition metal and aluminum oxide composite coating layer and an aluminumoxide coating layer from inside to outside. According to the invention, a multilayer composite coating is adopted on the surfaces of titanium dioxide particles, so that the photoactive groups of TiO2can be masked, the weather resistance of the titanium dioxide is improved, and the dispersity is also improved, so that the prepared titanium dioxide is excellent in performance.

Description

technical field [0001] The invention belongs to the technical field of titanium dioxide preparation, and in particular relates to a titanium dioxide for outdoor paint and a preparation method. Background technique [0002] Titanium dioxide is the best white functional pigment, known as the "King of White Pigment". Due to its excellent hiding power, light scattering power, high color reduction power and non-toxic and harmless, it is widely used in coatings, plastics, papermaking, Ink, rubber, chemical fiber, cosmetics and other industries. However, titanium dioxide also has inherent defects, the most prominent of which is photochemical activity. There are some lattice defects (ie Schottky defects) in titanium dioxide without surface treatment. Under irradiation, electrons in the valence band absorb photon energy, jump to the conduction band, and move freely in the lattice. Most of the electrons and holes undergo a recombination reaction, and a small part of the electrons an...

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): C09D7/62C09D5/02C09D127/06C09D167/08C09C1/36C09C3/06
CPCC09D7/62C09D5/024C09D127/06C09D167/08C09C1/3661C09C3/006C09C3/063C08K2003/2241C08K9/10C08K3/22
Inventor 和奔流曹青喜王永珊王欢欢王莉萍李瑞瑞冯亚阳郭永阳赵丁张健
Owner LOMON BILLIONS GRP CO LTD
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