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A kind of modified titanium dioxide and its preparation method and application

A titanium dioxide and modification technology, applied in the field of titanium dioxide, can solve the problems of reducing the gloss of modified titanium dioxide, poor dispersibility of modified titanium dioxide, uneven film density, etc., so as to improve gloss and weather resistance, improve phase Capacitive, gloss-enhancing effect

Active Publication Date: 2022-04-26
浙江达尔美塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Through the above-mentioned related technologies, silicon oxides have high temperature requirements during the coating process. At high temperatures, the speed of silicon reaction is not easy to control, and the density of the film layer formed on the surface of titanium dioxide is not uniform, resulting in the dispersion of modified titanium dioxide. Poor, reduces gloss of modified titanium dioxide

Method used

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  • A kind of modified titanium dioxide and its preparation method and application
  • A kind of modified titanium dioxide and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1: a kind of modified titanium dioxide, included concrete component and weight are as shown in table 2, are made by following steps:

[0051] S1: Antioxidant, binding agent, stabilizer calcium lactate are mixed and stirred, and the stirring speed is 500r / min, and the first mixture is obtained after stirring;

[0052]S2: polyacrylic acid and ethanol are mixed and stirred, and the stirring speed is 600r / min, and the second mixture is obtained after the proud plate is uniform;

[0053] S3: Mix and stir titanium dioxide with a particle size of 2 μm and dispersant sodium lignosulfonate and coumarin at a stirring speed of 650r / min. After stirring evenly, add the first mixture for mixing and stirring at a stirring speed of 600r / min. After uniformity, add the second mixture and stir at a stirring speed of 800 r / min. Stir evenly and carry out drying treatment, the drying temperature is 65° C., and the drying time is 50 minutes to obtain the modified titanium dioxide....

Embodiment 2

[0054] Example 2: A modified titanium dioxide, the difference from Example 1 is that the components and weights are different, and the specific components and weights included are shown in Table 2.

Embodiment 3-5

[0055] Embodiment 3-5: a kind of modified titanium dioxide, the difference from embodiment 2 is that the specific components and weight of the dispersant are different, and the specific components and weight included are as shown in Table 2.

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Abstract

This application relates to the technical field of titanium dioxide, and specifically discloses a modified titanium dioxide and its preparation method and application, including the following raw materials in parts by weight: 90-94 parts of titanium dioxide, 0.6-0.8 parts of antioxidant, 1-1 part of dispersant 1.5 parts, 1-1.5 parts of coumarin, 2-3 parts of polyacrylic acid, 2.5-3 parts of ethanol, 0.2-0.3 parts of stabilizer; antioxidant includes at least one of apple phenol and diatomaceous earth; titanium dioxide The particle size is 0.2-0.3 μm; the preparation method is: mix antioxidant, binder and stabilizer, and mix uniformly to obtain the first mixture; mix polyacrylic acid and ethanol, and mix uniformly to obtain the second mixture ; Mix titanium dioxide with dispersant and coumarin, mix evenly, add the first mixture to mix the second mixture, mix evenly and dry to obtain modified titanium dioxide; the modified titanium dioxide gloss of the application Better, after being applied in PVC plastics, it can endow PVC plastics with better gloss.

Description

technical field [0001] The present application relates to the technical field of titanium dioxide, in particular to a modified titanium dioxide and its preparation method and application. Background technique [0002] The scientific name of titanium dioxide is titanium dioxide. It has the advantages of high refractive index, good whiteness, strong decolorization power, high hiding power, high gloss, and harmless to the human body. It is mainly used in coatings, plastics, and other fields; it is usually added to PVC. As a filler, titanium dioxide can improve the fluidity and impact strength of PVC plastics. [0003] However, due to the lattice defects of titanium dioxide itself, under the irradiation of ultraviolet rays, new ecological oxygen with high activity is formed. This new ecology can oxidize the organic matter around titanium dioxide, thus causing the coating to yellow, lose light, and powder. A series of physical and chemical changes such as chemical change serious...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/36C09C3/06C09C3/08C09C3/10C08K9/04C08K3/22C08K7/26C08K5/1545C08K5/053C08L27/06C08L27/18
CPCC09C1/3692C09C1/3676C09C1/3669C09C1/3653C09C3/006C09C3/06C09C3/08C09C3/10C08K9/04C08K3/22C08K7/26C08K5/1545C08K5/053C08L27/06C08L27/18C08K2003/2241
Inventor 吴南倪建赟吴斌
Owner 浙江达尔美塑胶有限公司