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Water fluorine-carbon nanapaint and producing process thereof

A technology of nano-fluorocarbon coatings and nano-materials, applied in coatings and other directions, can solve the problems of poor artificial aging resistance of coatings, difficulty in popularization and application, and inconvenient use, and achieve excellent weather resistance, convenient use, and improved performance.

Inactive Publication Date: 2003-03-12
上海开来湿克威防水材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fluorocarbon coating successfully developed in the 1970s is a solvent-based coating, which is difficult to popularize due to its disadvantages such as strong odor, heavy pollution, difficult construction, and high cost.
For example, Chinese patent CN1322775A in 2001 discloses a water-based fluorocarbon coating containing water-based fluorocarbon resin, but it is still made into a solvent-based resin first, and then converted from a solvent-based resin to a water-based resin. The artificial aging resistance of the paint is also relatively poor, failing to meet the national standard GB / T9755-2001 "Synthetic Resin Emulsion Exterior Wall Paint" high-quality product technical indicators, and it is a two-component paint, which needs to be mixed with a curing agent when used. Homogenization is extremely inconvenient to use and may cause quality problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: the production of white matte waterborne nano fluorocarbon exterior wall paint:

[0038] While adding the following substances into the stainless steel container, stir at the same time, the stirring speed is 1000~1600 rpm. Its weight is as follows:

[0039] water 16kg

[0040] Titanium dioxide (pigment) 22kg

[0041] Talc powder (filler) 5kg

[0042] Aluminum silicate (filler) 5kg

[0043] Ethylene glycol (film-forming aid) 1kg

[0044] Lauryl alcohol ester (film-forming aid) 0.01kg

[0045] Nano zinc oxide (water-based nano material) 0.1kg

[0046] Polycarboxylate amine (dispersant) 0.2kg

[0047] Mineral oil base containing silicon (defoamer) 0.01kg

[0048] 2-n-octyl-4-isothiazolin-3-one (preservative and fungicide) 0.01kg

[0049] Then mechanically emulsify the uniformly stirred mixture to make an intermediate slurry with a fineness of 40-60 μm and a viscosity of 20-25 seconds.

[0050] Then the above-mentioned intermediate slurry is stirred ...

Embodiment 2～4

[0068] The formula of waterborne nano fluorocarbon exterior wall paint is shown in Table 2.

[0069] Table 2 Weight: kg

[0070] The production process steps are the same as in Example 1.

[0071] The main technical properties of the water-based nano-fluorocarbon coating prepared by the above method are similar to the technical performance data of Example 1.

Embodiment 5～6

[0073] The formula of waterborne nano fluorocarbon interior wall paint is shown in Table 3.

[0074] Table 3 Weight: kg

[0075] The production process steps are the same as in Example 1.

[0076] The main technical properties of the water-based nano-fluorocarbon interior wall paint prepared by the above method are as follows:

[0077] Scrub resistance >5000 times

[0078] Volatile organic compound (VOC value) <80g / L

[0079] Free formaldehyde mg / L ≤0.1

[0080] Heavy metal content mg / kg

[0081] Soluble lead 0

[0082] Soluble cadmium <1

[0083] Soluble chromium <1

[0084] Soluble Mercury 0

[0085] Antibacterial rate (24 hours)% >50

[0086] The above indicators are obviously superior to the national standard GB / T9756-2001 "synthetic resin emulsion interior wall paint" premium products and GB18582-2001 "interior decoration materials interior wall paint" technical indicators of harmful substances limit.

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Abstract

A water F-C nano paint is prepared from aqueous vinyl F-C emulsion as filming liquid, nano material as modifier, pigment, filler, assistant and water. Its advantages are smooth surface, high weatherability, self-cleaning power, chemical resistance and durability, and low cost.

Description

Technical field [0001] The invention relates to fluorocarbon coatings, and more specifically relates to a water-based nano-fluorocarbon coating and a production method thereof. Background technique [0002] Fluorocarbon coatings produced with fluorine-containing copolymer resins of fluoroolefins and other monomers as the main film-forming material, compared with general coating products, have excellent characteristics such as weather resistance, chemical corrosion resistance, and abrasion resistance, so they are favored by various industries. Fang watched. The fluorocarbon coating successfully developed in the 1970s is a solvent-based coating, which is difficult to popularize and apply because of its disadvantages such as strong odor, heavy pollution, difficult construction, and high cost. As a result, countries all over the world turned their attention to the development of water-based fluorocarbon coatings in the 1990s. For example, Chinese patent CN1322775A in 2001 disc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12
Inventor 徐寿柏
Owner 上海开来湿克威防水材料有限公司
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