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A kind of high weather resistance exterior wall nano-coating and preparation method thereof

A nano-coating, high weather resistance technology, applied in nanotechnology, nanotechnology, reflective/signal coatings, etc., can solve problems such as increasing the life of exterior wall coatings

Active Publication Date: 2019-11-15
南京思九科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to solve the problem of using compensatory anti-aging agents in traditional coatings to increase the life of exterior wall coatings

Method used

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  • A kind of high weather resistance exterior wall nano-coating and preparation method thereof
  • A kind of high weather resistance exterior wall nano-coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: Its preparation method of a kind of high weather resistance exterior wall nano-coating is as follows,

[0028] Step 1, solution A, dissolve 6 parts of polyvinylpyrrolidone in 20 parts of absolute ethanol and stir for 20 minutes; solution B, add 6 parts of stannous chloride to 20 parts of N~N dimethyl formaldehyde under stirring condition In amide, stir thoroughly for 20 minutes;

[0029] Step 2, mix A solution and B solution in a ratio of 1:1, add 1 part of acetylacetone, 5 parts of carbon quantum dots and 2 parts of mineral oil, and fully stir for 12 hours to obtain a precursor colloidal solution for preparing mesoporous tin dioxide;

[0030] Step 3, put the precursor solution prepared in step 2 into a spinneret with an inner diameter of 0.4mm, the receiving device is an aluminum roller with a grounded rotation diameter of 100mm, the receiving distance is 18cm, the spinning voltage is 15kV, and electrospinning is carried out ;

[0031] Step 4, place the...

Embodiment 2

[0035] Embodiment 2, its preparation method of a kind of high weather resistance exterior wall nano-coating is as follows,

[0036] Step 1: A solution, dissolve 10 parts of polyvinylpyrrolidone in 24 parts of absolute ethanol, and stir for 40 minutes; B solution: add 10 parts of stannous chloride to 24 parts of N~N dimethyl formaldehyde under stirring condition Amide, fully stirred for 40 minutes;

[0037] Step 2: Mix solution A and solution B at a ratio of 1:1, add 3 parts of acetylacetone, 5 parts of carbon quantum dots and 4 parts of mineral oil, and stir thoroughly for 12 hours to obtain a precursor colloidal solution for preparing mesoporous tin dioxide;

[0038] Step 3: Put the precursor solution prepared in step 2 into a spinneret with an inner diameter of 1mm, the receiving device is an aluminum roller with a grounded rotating diameter of 100mm, the receiving distance is 22cm, the spinning voltage is 20kV, and electrospinning is carried out;

[0039] Step 4: Place the...

Embodiment 3

[0043] Embodiment 3, its preparation method of a kind of high weather resistance exterior wall nano-coating is as follows,

[0044] Step 1: Solution A: Dissolve 8 parts of polyvinylpyrrolidone in 22 parts of absolute ethanol and stir for 30 minutes; Solution B: Add 8 parts of stannous chloride to 22 parts of N~N dimethyl formaldehyde under stirring condition Amide, fully stirred for 30 minutes;

[0045] Step 2: Mix solution A and solution B at a ratio of 1:1, add 2 parts of acetylacetone, 5 parts of carbon quantum dots and 3 parts of mineral oil, and stir thoroughly for 12 hours to obtain a precursor colloidal solution for preparing mesoporous tin dioxide;

[0046] Step 3: Put the precursor solution prepared in step 2 into a spinneret with an inner diameter of 0.8mm, the receiving device is an aluminum roller with a grounded rotation diameter of 100mm, the receiving distance is 20cm, and the spinning voltage is 18kV, and electrospinning is carried out ;

[0047] Step 4: Plac...

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Abstract

The invention belongs to the field of nano coating materials and particularly discloses a high-weatherability exterior wall nano coating material and a preparation method thereof. As for the preparation formula and the preparation steps, a solution A comprising polyvinylpyrrolidone and absolute ethyl alcohol and a solution B comprising stannous chloride and N-N dimethyl formamide are mixed according to the ratio of 1:1, diacetone and mineral oil are added, roasting is conducted after electrostatic spinning, and a mesoporous stannic oxide nanotube is obtained; and the mesoporous stannic oxide nanotube, water, propylene glycol, a coalescing agent, a wetting agent, a corrosion remover, hydroxyethyl cellulose, a dispersing agent, titanium dioxide, coarse whiting, kaolin, talc powder, acrylic emulsion, a defoaming agent and a thickening agent are evenly mixed, and the high-weatherability exterior wall nano coating material is obtained. By means of the nano coating material, the indoor formaldehyde gas content can be reduced under the action of photocatalysis, and indoor environmental friendliness is improved.

Description

technical field [0001] The invention relates to the field of nano-coatings, in particular to a nano-coating for exterior walls with high weather resistance and a preparation method thereof. Background technique [0002] Driven by the construction industry, China's coatings industry is growing from strength to strength. Statistics show that in 2011, the total output of China's architectural coatings was about 3.5182 million tons, an increase of more than 30% year-on-year. It can be seen that although China's architectural coatings industry has experienced the impact of the global financial crisis in 2008 and the pressure brought by rising raw material prices, its development momentum remains unabated, and it still maintains a relatively high growth rate. A large part of architectural coatings are used as exterior wall coatings. Exterior wall coatings are directly exposed to the external environment, and are subjected to year after year of sun and rain erosion, especially ul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D7/61C09D7/65C09D7/20C09D5/33C01G19/02B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G19/02C01P2004/13C01P2006/17C08K2003/2241C08K2003/265C08K2201/011C08L2201/08C08L2205/035C09D5/004C09D133/00C08L75/04C08L83/04C08L71/02C08L1/284C08K13/04C08K7/24C08K3/22C08K3/26C08K3/346C08K3/34C08K5/42
Inventor 田亮亮李璐陈贤闫兴武刘碧桃程江杨鑫
Owner 南京思九科技服务有限公司