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A kind of multi-modified ultrafine non-metallic powder partially substituted for titanium dioxide and its preparation method

A technology of non-metallic powder and titanium dioxide is applied in the field of multiple modified ultra-fine non-metallic powder that partially replaces titanium dioxide and its preparation. Overcome the tendency of agglomeration, good compatibility, improve the effect of compatibility

Active Publication Date: 2015-11-18
芜湖同达新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the investment is large, the equipment structure is complex, the material requirements are high, high temperature resistance, corrosion resistance are required, the device is difficult to maintain, and the research and development is difficult.

Method used

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  • A kind of multi-modified ultrafine non-metallic powder partially substituted for titanium dioxide and its preparation method
  • A kind of multi-modified ultrafine non-metallic powder partially substituted for titanium dioxide and its preparation method
  • A kind of multi-modified ultrafine non-metallic powder partially substituted for titanium dioxide and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Proportion

[0021]

[0022] The model of the silane coupling agent is KH-580, produced by Nanjing Shuguang Company.

[0023] Described stearic acid model is 1801, commercially available.

[0024] The calcined kaolin and wollastonite are commercially available products.

[0025] The superfine ground calcium carbonate powder is produced by Wuhu Tongda New Material Technology Co., Ltd.

[0026] Its preparation method is:

[0027] Add superfine heavy calcium carbonate powder into the high-speed mixer, then add wollastonite powder and kaolin powder respectively, stir at high speed and heat up. When the temperature reaches 105°C, keep it warm for 8 minutes to dry off the water, and then add evenly Combined agent, heat up to 155°C, keep warm for 8 minutes, discharge the material into the intermediate hopper, cool the material to 95°C, and quantitatively add the above-mentioned preliminary modification to the three-roller continuous powder surface modification machine co...

Embodiment 2

[0029] Proportion

[0030]

[0031] The model of the silane coupling agent is KH-580, produced by Nanjing Shuguang Company.

[0032] Described stearic acid model is 1801, commercially available.

[0033] The calcined kaolin and wollastonite are commercially available products.

[0034] The superfine ground calcium carbonate powder is produced by Wuhu Tongda New Material Technology Co., Ltd.

[0035] Its preparation method is:

[0036] Add superfine heavy calcium carbonate powder into the high-speed mixer, then add wollastonite powder and kaolin powder respectively, stir at high speed and heat up, when the temperature reaches 110°C, keep it warm for 1 minute to dry off the moisture, and then add coupling Raise the temperature to 160°C, keep it warm for 7 minutes, discharge the material into the intermediate hopper, cool the material to 95°C, and quantitatively add the above-mentioned preliminary modified mixture to the three-roller continuous powder surface modification...

Embodiment 3

[0045] Embodiment 3: Embodiment 1, 2 are used respectively in the water-based architectural paint, and concrete scheme is as follows:

[0046] 1. Formula

[0047] Recipe 1

[0048]

[0049] Ammonia to adjust PH=7

[0050] Recipe 2

[0051] Replace 20 parts of titanium dioxide in formula 1 with 30 parts of multi-modified ultrafine non-metallic powder prepared in Example 1, and the rest are the same as formula 1.

[0052] The titanium dioxide is rutile and imported; the precipitated barium sulfate light calcium carbonate is 600 mesh and commercially available; other materials are commercially available.

[0053] Recipe 3

[0054] Replace 20 parts of titanium dioxide in formula 1 with 32 parts of multi-modified ultrafine non-metallic powders prepared in Example 2, and the rest are the same as formula 1.

[0055] 2. Process

[0056] ① Dissolve the thickener in water

[0057] ②Add various additives and stir evenly at low speed

[0058] ③ Add powder, stir well, and mois...

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Abstract

The present invention discloses multiple modified ultrafine non-metal powder partially replacing titanium dioxide powder, and a preparation method thereof. The multiple modified ultrafine non-metal powder is prepared from the following raw materials by weight: 60-75 parts of ultrafine heavy calcium carbonate powder, 15-20 parts of calcined kaolin powder, 10-15 parts of wollastonite powder, 1-2 parts of a silane coupling agent, and 0.8-1.2 parts of stearic acid. Compared with the rutile type titanium dioxide powder, the produced multiple modified ultrafine non-metal powder of the present invention has characteristics of excellent surface activity, excellent dispersibility, good compatibility with other organic materials, good processing flowability, excellent whiteness and excellent coverage rate.

Description

technical field [0001] The invention relates to a multi-modified superfine non-metallic powder product, a preparation method and an application thereof. The multi-modified superfine non-metallic powder can partially replace rutile-type titanium dioxide. technical background [0002] Titanium dioxide is considered to be the most widely used white pigment in the world, and is widely used in coatings, plastics, papermaking, printing ink, chemical fiber, rubber, cosmetics and other industries. There are two manufacturing methods of titanium dioxide: sulfuric acid method and chlorination method. The sulfuric acid method is to produce titanous sulfate by acidolysis reaction of ferrotitanium powder and concentrated sulfuric acid, which is hydrolyzed to generate metatitanic acid, and then calcined and crushed to obtain titanium dioxide products. This method can produce anatase and rutile titanium dioxide. The disadvantage is that the process is long, and it can only be operated in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/42C09C3/12C09C3/08C09D7/12
Inventor 陈永辉
Owner 芜湖同达新材料科技有限公司
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