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

Preparation method of titanium dioxide pigment for water-based paint

A technology of titanium dioxide and water-based paint, which is applied in the direction of chemical instruments and methods, inorganic pigment treatment, fibrous fillers, etc., can solve the problems of impeding permeability, reducing the whiteness and gloss of titanium dioxide, and agglomerating titanium dioxide particles, so as to prevent Effects of agglomeration, improvement of gloss, and improvement of permeability

Inactive Publication Date: 2017-08-18
NINGBO XINFU TITANIUM DIOXIDE
View PDF17 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as CN200880014618.6, CN201110233081.6, CN201280012287.9, CN201410404059.7, in order to improve the anti-aging performance of titanium dioxide, the surface of titanium dioxide is coated with silicon dioxide or phosphate to form a dense glass-like film, but the coating These substances hinder the transmission of light, and the corresponding whiteness and gloss of titanium dioxide are significantly reduced.
On the other hand, the process of coating this dense film will lead to a certain degree of agglomeration of titanium dioxide particles. Although there is secondary crushing in the subsequent process, it still significantly affects the monodispersity of titanium dioxide.

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

[0018] Embodiment 1: A preparation method of titanium dioxide pigment for water-based paint, comprising the following steps. Step (A): dry grinding, pulverizing the calcined rutile titanium dioxide to form a crude rutile titanium dioxide. The crushing is carried out by the grinding roller and grinding ring of the Raymond machine, which has little pollution to the product, and the product has good fineness and low oil absorption. At the same time, adjust the parameters such as the feed speed of the Raymond machine, the speed of the classifier, and the air intake volume so that the particle size after crushing is 45 μm, and the sieve residue is ≤0.05%. Step (B): Wet grinding, adding desalted water, silicon components and boron components to the crude rutile titanium dioxide, the content of the silicon component added is 0.5% in weight percentage, and the content of the boron component is 0.5% 0.1%. The silicon component is a sodium silicate solution, and the boron component is...

Embodiment 2

[0019]Embodiment 2: A preparation method of titanium dioxide pigment for water-based paint, comprising the following steps. Step (A): dry grinding, pulverizing the calcined rutile titanium dioxide to form a crude rutile titanium dioxide. The crushing is carried out by the grinding roller and grinding ring of the Raymond machine, which has little pollution to the product, and the product has good fineness and low oil absorption. At the same time, adjust the parameters such as the feed speed of the Raymond machine, the speed of the classifier, and the air intake volume so that the particle size after crushing is 35 μm, and the sieve residue is ≤0.05%. Step (B): Wet grinding, adding desalted water, silicon components and boron components to the crude rutile titanium dioxide, the content of the silicon component added is 5%, and the content of the boron component is 5% by weight. 2%. The silicon component is a sodium silicate solution, and the boron component is a sodium borate ...

Embodiment 3

[0020] Embodiment 3: A preparation method of titanium dioxide pigment for water-based paint, comprising the following steps. Step (A): dry grinding, pulverizing the calcined rutile titanium dioxide to form a crude rutile titanium dioxide. The crushing is carried out by the grinding roller and grinding ring of the Raymond machine, which has little pollution to the product, and the product has good fineness and low oil absorption. At the same time, adjust the parameters such as the feed speed of the Raymond machine, the speed of the classifier, and the air intake volume so that the particle size after crushing is 45 μm, and the sieve residue is ≤0.05%. Step (B): Wet grinding, adding desalted water, silicon components and boron components to the crude rutile titanium dioxide, the content of the silicon component added is 2.5% in weight percentage, and the content of the boron component is 2.5% 2.5%. The silicon component is potassium silicate solution, and the boron component i...

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 preparation method of a titanium dioxide pigment for water-based paint, and belongs to the field of chemical engineering. The method comprises the following steps: carrying out dry grinding; carrying out wet grinding; screening; coating a membrane; washing and drying; and vaporizing gas. A silicon component and a boron component are added in a wet grinding process. Compared with the prior art, the silicon component and the boron component are added in the grinding process, so that titanium dioxide can be ground to certain fineness and concentration, the size of the titanium dioxide pigment on the original particle is maintained, and aggregation caused by coating the film among titanium dioxide particles is also prevented; and meanwhile, the transmissibility of light on the surface of the titanium dioxide also can be improved, and the glossiness in a using process is improved.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a preparation method of titanium dioxide for water-based wood ware paint. Background technique [0002] As the theme of furniture production and sales, environmental protection is impacting every link of furniture production and raw and auxiliary materials. For furniture coatings, it is also undergoing a transformation from traditional wood coatings to environmentally friendly coatings. The development of water-based wood paint complies with the requirements of environmental protection regulations, greatly reducing the release of organic compounds in wood paint, and is becoming another market hotspot after architectural latex paint for interior and exterior walls. At present, there are three main types of water-based wood paint products in my country: one is wood paint with acrylic acid as the main component. Low and not high-tech. The second is the composition of a...

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): C09C1/36C09C3/04C09C3/06C09C3/08C09C3/12
CPCC09C1/3623C09C1/3653C09C1/3661C09C1/3669C09C1/3684C09C1/3692C09C3/006C09C3/041C09C3/063C09C3/08C09C3/12
Inventor 陆祥芳陈跃晏育刚
Owner NINGBO XINFU TITANIUM DIOXIDE