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Inorganic nonmetallic mineral composite material loaded with titanium dioxide layer, preparation method and application thereof

An inorganic non-metallic and composite material technology, applied in the field of inorganic non-metallic mineral composite materials, can solve the problems of high refractive index, high hiding power performance, insufficient loading firmness, and high equipment requirements that limit titanium dioxide, so as to achieve photocatalytic activity , low cost, and the effect of improving the overall performance

Active Publication Date: 2013-03-13
SHANGHAI WORLD PROSPECT CHEMTECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The preparation cost is relatively high and the process is complicated
For example, the gel sol method using titanate or orthotitanic acid as the titanium source, the impregnation and roasting method using the soluble titanium salt as the titanium source directly loaded on the micron carrier, and the preparation of the loaded micron carrier in a high-temperature oxygen atmosphere environment Methods such as micro-nano composite materials of nano-titanium dioxide, these methods require high-temperature calcination to transform crystals or react in a high-temperature oxygen atmosphere environment, and there are problems of high preparation costs, complicated processes, and high equipment requirements.
[0006] 2. Among the current methods, there are many factors affecting the loading rate (or coating rate) of nano-titanium dioxide, such as low loading rate or insufficient loading firmness
In this method, since hydrochloric acid inhibits the growth of nanoparticles during the hydrolysis of titanium tetrachloride, the size of the formed titanium dioxide nanoparticles is concentrated in the range of 10 nanometers, so nano-titanium dioxide is highly transparent, thereby limiting the size of titanium dioxide nanoparticles. The performance of high refractive index and high hiding power

Method used

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  • Inorganic nonmetallic mineral composite material loaded with titanium dioxide layer, preparation method and application thereof
  • Inorganic nonmetallic mineral composite material loaded with titanium dioxide layer, preparation method and application thereof
  • Inorganic nonmetallic mineral composite material loaded with titanium dioxide layer, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] Add 400 grams of 1250 mesh sericite to a mixed solution of 1100 grams of water, 70 grams of sulfuric acid, 1.6 grams of sodium hexametaphosphate and 0.4 grams of polyacrylamide, and stir at 80-90°C to form a uniformly dispersed suspension; weigh; Take 50 grams of titanium tetrachloride, add 110 grams of an aqueous solution containing 3 grams of polyethylene glycol 1200, 1 gram of polyvinyl alcohol (PVA), and 0.5 grams of polyimide dispersant into the titanium tetrachloride dropwise to prepare stable tetrachloride. Titanium chloride hydrolyzate: Add the titanium tetrachloride hydrolysate dropwise to the sericite-containing suspension. After 4 hours of reaction, filter and wash until the pH of the filtrate is close to 4 to obtain a composite filter cake, which is functional after drying Composite material 1.

[0093] The following observations and tests were performed on the obtained composite product.

[0094] Load detection

[0095] According to the GB\T 1706-2006 standard,...

Embodiment 2

[0101] Add 500 grams of 800 mesh kaolin to a mixed solution of 2000 grams of water, 300 grams of hydrochloric acid, 50 grams of sulfuric acid, 2 grams of sodium hexametaphosphate, and 1 gram of polyether L61 (Guangzhou Chengfeida Trading Co., Ltd.). Stir at 80-90℃ to form a uniformly dispersed suspension; weigh 240 grams of titanium tetrachloride, which will contain 6 grams of polycarboxylate TH-361 (Shandong Taihe Water Treatment Co., Ltd.), 3 grams of polyethylene glycol 1200, 1 1900 grams of polyvinyl alcohol (PVA) aqueous solution was added dropwise to titanium tetrachloride to prepare a stable titanium tetrachloride hydrolysate; the titanium tetrachloride hydrolysate was added dropwise to the suspension containing kaolin, and after 6 hours of reaction, filtered Wash with water until the pH of the filtrate reaches 5 to obtain a composite filter cake, which is dried to obtain functional composite material 2.

[0102] The following observations and tests were performed on the o...

Embodiment 3

[0108] Add 600 grams of 800 mesh sericite to 1100 grams of water, 40 grams of hydrochloric acid, 10 grams of sulfuric acid, 6 grams of sodium hexametaphosphate, and 2 grams of polycarboxylate GY-D06 (Sinchem Research Institute of Chemical Technology). In the solution, stir at 85-95℃ to form a uniformly dispersed suspension; weigh 200 g of titanium tetrachloride, which will contain 1 g of polyethylene glycol 1200, 0.4 g of polyvinyl alcohol (PVA), and 0.6 g of polyethylene glycol 600 grams of lauric acid PEG200ML (Jiangsu Haian Petrochemical Plant) aqueous solution was dropped into titanium tetrachloride to prepare a stable titanium tetrachloride hydrolysis solution; the titanium tetrachloride hydrolysis solution was dropped into the sericite-containing suspension, After reacting for 4 hours, filter and wash the filtrate until the pH of the filtrate is 7, to obtain a composite filter cake, and then obtain functional composite 3 after drying.

[0109] The following observations and...

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Abstract

The invention discloses a composite material which comprises inorganic nonmetallic mineral as a carrier, and a nanometer titanium dioxide layer loaded on the carrier; the layer comprises a plurality of titanium dioxide nanospheres, and the titanium dioxide nanospheres are composed of a plurality of titanium dioxide nanometer single particles. The invention also discloses a composite material with one or more than one functional layer loaded on the nanometer titanium dioxide layer. The composite material can not only bring into play the advantages of high refractive index and high covering power of the nanometer titanium dioxide layer, but also bring into play the good photocatalytic activity of the small nanometer single particles, which widens the application fields of the composite material, improves the comprehensive performance of the final product, and facilitates easier coating of other functional layers to prepare composite material with reinforced functions or multiple functions. The invention also discloses a preparation method of the composite material, which is simple in process and low in cost. The composite material of the invention has wide applications, can be used as an additive for various industrial fields, and has good compatibility.

Description

Technical field [0001] The invention relates to an inorganic non-metallic mineral composite material loaded with a titanium dioxide layer, a preparation method and application of the composite material. The invention also relates to an inorganic non-metallic mineral composite material loaded with a titanium dioxide layer and one or more functional layers, a preparation method and application of the composite material. Background technique [0002] Titanium dioxide is an important chemical raw material closely related to our lives. When its particle size drops to the nanometer level, due to its special structural level, it has better optical properties of absorbing ultraviolet rays and photocatalytic properties, so it has become a chemical material in nearly 20 research hotspots of the year. However, due to the large specific surface energy of nano-titanium dioxide, nano-titanium dioxide cannot achieve true nano-dispersion when used in coatings, plastics, paper, rubber, envi...

Claims

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Application Information

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IPC IPC(8): B01J23/06B01J23/66A01N59/16A01P1/00C09D7/12C08K9/12D01F1/10C09J11/04A61K8/92A61K8/29A61Q19/00A61Q17/04C04B14/02C04B41/86D21H19/64D21H17/69
Inventor 范莉许晓峻
Owner SHANGHAI WORLD PROSPECT CHEMTECH
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