Method for preparing high-performance rutile titanium dioxide pigment

A high-efficiency technology of rutile titanium dioxide, which is applied in the field of pigments, can solve problems such as uneven performance of titanium dioxide, poor dispersion of titanium dioxide, and affecting performance, and achieve the effect of improving the covering effect, stable performance, and easy realization

Inactive Publication Date: 2016-04-13
常熟市环虹化工颜料厂
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the titanium dioxide obtained by the current treatment method has defects such as uneven film and poor dispersion o

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

Example Embodiment

[0019] Example 1

[0020] The present invention discloses a method for preparing a high-performance rutile titanium dioxide pigment, which mainly includes forming a silica coating layer and an aluminum coating layer on the surface of the rutile titanium dioxide pigment successively. The specific steps are as follows:

[0021] (1) Slurry treatment: The chlorinated titanium dioxide is dehydrated and concentrated to a mass concentration of 380~450g / L, and then placed in a ball mill, and then a dispersant which accounts for 2 to 3% of the mass of the chlorinated titanium dioxide is added. Ethylene glycol octyl phenyl ether, under the conditions of a material-to-ball ratio of 5:1 and a rotating speed of 150-300r / min, high-speed dispersion and grinding for 10-15min

[0022] (2) Preparation of silicon dioxide pre-coating layer: adding SiO to the treated slurry in step (1) 2 Solution to make SiO 2 The added amount of the solution is 0.5 to 1% of the mass of the titanium dioxide, after mixing...

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 a method for preparing a high-performance rutile titanium dioxide pigment. The method comprises the following steps: a step (1) of performing slurry treatment, a step (2) of preparing a silicon dioxide pre-coating layer, a step (3) of preparing a silicon dioxide coating layer, a step (4) of preparing an aluminum pre-coating layer; a step (5) of preparing an aluminum coating layer; and a step (6) of obtaining the finished product. The method for preparing the high-performance rutile titanium dioxide pigment is novel in conception and easy to implement, the uniform dispersion of the rutile titanium dioxide and coating evenness of the coating layers are achieved through the pre-coating and coating two-step method, so that the coated rutile titanium dioxide pigment is uniform in texture and stable in performance, the covering effect of the product is improved effectively, and the comprehensive using performance of the pigment is improved.

Description

technical field [0001] The invention relates to the field of pigments, in particular to a preparation method of high-efficiency rutile titanium dioxide pigment. Background technique [0002] Titanium dioxide, a white pigment whose main component is titanium dioxide, is widely used in coatings, plastics, papermaking, ink and chemical fiber and other fields. Due to the photocatalytic activity of titanium dioxide, especially rutile titanium dioxide, titanium dioxide without surface treatment will catalyze and degrade the organic components in contact with it during use, causing the coating to lose gloss and pulverize and fall off, seriously reducing the various properties of the product. performance and service life. Inorganic coating is an important measure to improve the physical and chemical properties of titanium dioxide products. However, the titanium dioxide obtained by the current treatment method has defects such as uneven film and poor dispersion of titanium dioxide,...

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): C09C1/36C09C3/06C09C3/00C09C3/04
CPCC09C1/3692C09C1/3607C09C1/3623C09C1/3661C09C3/00C09C3/006C09C3/04C09C3/06
Inventor 范建平
Owner 常熟市环虹化工颜料厂
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