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Mica compound titanium dioxide used for paint and preparation method

A technology for compounding titanium dioxide and titanium dioxide, which is applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve the problems of poor coating effect, restricting development and application, easy agglomeration, etc., and achieves simple preparation process and low cost. Inexpensive, anti-agglomeration effect

Inactive Publication Date: 2019-02-12
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, the production cost of titanium dioxide, which is widely used, is high. When it is used in polymer materials such as coatings, it has problems such as easy agglomeration and poor coating effect, which affects the effect of adding modification and restricts its further development and application.

Method used

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  • Mica compound titanium dioxide used for paint and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Mix mica, fatty acid methyl ester sulfonate and isopropanol evenly, and then transfer to a ball mill for ball milling. With the assistance of isopropanol, fatty acid methyl ester sulfonate infiltrates the mica surface and collects the ball milling mixture ; Fatty acid methyl ester sulfonate is sodium fatty acid methyl ester sulfonate; the material-ball ratio of the ball mill is 1:2, the ball diameter is 7mm, the ball mill speed is 56r / min, and the ball mill time is 4h;

[0031] Wherein, 84 parts by weight of mica, 9 parts by weight of fatty acid methyl ester sulfonate, 7 parts by weight of isopropanol;

[0032] (2) Spray-dry the ball-milled mixture obtained in step (1), and collect the dried material; the speed of spray-drying is 21000r / min, the inlet temperature is 210°C, the outlet temperature is 86°C, and the diameter of the spray disc is 130mm;

[0033] (3) Mix the dried product obtained in step (2) with titanium dioxide, add water to make a slurry, and then per...

Embodiment 2

[0037] (1) Mix mica, fatty acid methyl ester sulfonate and isopropanol evenly, and then transfer to a ball mill for ball milling. With the assistance of isopropanol, fatty acid methyl ester sulfonate infiltrates the mica surface and collects the ball milling mixture ; Fatty acid methyl ester sulfonate is sodium fatty acid methyl ester sulfonate; the material-ball ratio of the ball mill is 1:1, the ball diameter is 6mm, the ball mill speed is 50r / min, and the ball mill time is 5h;

[0038] Wherein, 87 parts by weight of mica, 8 parts by weight of fatty acid methyl ester sulfonate, 5 parts by weight of isopropanol;

[0039] (2) Spray-dry the ball-milled mixture obtained in step (1), and collect the dried material; the speed of spray-drying is 16000r / min, the inlet temperature is 180°C, the outlet temperature is 80°C, and the diameter of the spray disc is 50mm;

[0040] (3) Mix the dried product obtained in step (2) with titanium dioxide, add water to make a slurry, and then perf...

Embodiment 3

[0044] (1) Mix mica, fatty acid methyl ester sulfonate and isopropanol evenly, and then transfer to a ball mill for ball milling. With the assistance of isopropanol, fatty acid methyl ester sulfonate infiltrates the mica surface and collects the ball milling mixture ; Fatty acid methyl ester sulfonate is sodium fatty acid methyl ester sulfonate; the material-ball ratio of the ball mill is 1:2, the ball diameter is 8mm, the ball mill speed is 60r / min, and the ball mill time is 3h;

[0045] Wherein, 80 parts by weight of mica, 12 parts by weight of fatty acid methyl ester sulfonate, 8 parts by weight of isopropanol;

[0046] (2) Spray-dry the ball-milled mixture obtained in step (1), and collect the dried material; the speed of spray-drying is 25000r / min, the inlet temperature is 250°C, the outlet temperature is 90°C, and the diameter of the spray disc is 200mm;

[0047] (3) Mix the dried product obtained in step (2) with titanium dioxide, add water to make a slurry, and then pe...

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Abstract

The invention relates to the field of compound filler, and discloses mica compound titanium dioxide used for paint and a preparation method. The method comprises the following preparation processes that 1, mica, fatty acid methyl ester sulfonate and isopropanol are subjected to ball milling after being mixed, and a mixture is collected; 2, the ball milling mixture is subjected to spray drying, anda dried matter is collected; 3, after the dried matter and titanium dioxide are mixed, water is added to prepare slurry, then a polyester-type hyperdispersant is added for wet ball milling, and a mixture and porous polymeric microspheres are further subjected to dispersion and assembly to prepare the mica compound titanium dioxide used for the paint. According to the mica compound titanium dioxide used for the paint and the preparation method, by adding the fatty acid methyl ester sulfonate to conduct surface activation and infiltration on the mica, the mica is covered by titanium dioxide evenly, the titanium dioxide is fully exposed, and the mixture and the porous polymeric microspheres are further subjected to assembly so that the aggregation phenomenon of powder can be effectively prevented, meanwhile, a preparation technology is simple, the cost is low, and the mica compound titanium dioxide can be widely applied into the paint.

Description

technical field [0001] The invention relates to the field of composite fillers, and discloses a mica composite titanium dioxide used for coatings and a preparation method. Background technique [0002] As a white pigment, titanium dioxide has high hiding power, high finish, high whiteness and strong weather resistance, but its application is limited due to the much higher production cost than other white pigments and the increasing shortage of titanium ore resources. How to reduce the production cost of titanium dioxide has become an urgent research topic. The pigment performance of titanium dioxide particles is reflected by optical properties, which mainly depend on TiO 2 The surface properties of the particles, therefore, TiO 2 Particle cores contribute little to optical performance. If a cheap and easy-to-obtain white material can be used to replace the inner core, the unit cost of titanium dioxide will be greatly reduced. Composite titanium dioxide uses cheap non-met...

Claims

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Application Information

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IPC IPC(8): C09C1/40C09C3/04C09C3/06C09C3/08C09C3/10
CPCC09C1/405C01P2006/22C01P2006/60C09C3/006C09C3/041C09C3/063C09C3/08C09C3/10
Inventor 陈庆司文彬
Owner CHENDU NEW KELI CHEM SCI CO LTD
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