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Water fluorine carbon emulsion paint and preparation process thereof

A latex paint, water-based fluorocarbon technology, applied in latex paint, coating, etc., can solve the problems of environmental pollution, low fluorine content, opaque latex film, etc., and achieve the effect of solving environmental pollution, excellent weather resistance, and no solvent odor

Active Publication Date: 2008-06-11
JIANGSU LANLING POLYMER MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At the beginning of the 21st century, when room temperature curing fluorocarbon coatings began to be used in different fields in my country, the coatings were solvent-based and two-component. Although the coatings had excellent performance, they polluted the environment due to the volatilization of solvents, causing harm to the human body and inconvenient construction.
According to information, in 2002, Shanghai University, Dalian Zhenbang, and Hunan University all reported on the development of emulsions for water-based fluorocarbon latex coatings, but so far no products have come out; Harbin Xuejia and Shanghai Yining Building Materials Co., Ltd. have commercial products , but after use, it is found that the fluorine content in the emulsion is low, the stability of the emulsion is poor, the latex film is opaque, the paint prepared with this emulsion has low gloss, and the weather resistance of the natural exposure cloth is not good

Method used

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  • Water fluorine carbon emulsion paint and preparation process thereof
  • Water fluorine carbon emulsion paint and preparation process thereof
  • Water fluorine carbon emulsion paint and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 33.00g of water into the batching tank according to the names and proportions of raw materials listed in Table 3, and add 10.00g of dispersant, 1.00g of defoamer, 0.50g of preservative in the tank, and 0.50g of paint film antifungal agent respectively under stirring , after stirring evenly, add 5.00g of pH adjuster to adjust the pH value of the system, after the pH value reaches the range of 8.0-9.0, add imported rutile titanium dioxide, mix well and pump the material into a sand mill for grinding. Fineness ≤ 50μm, then add 700.0g of SE-350 emulsion, slowly and uniformly add 50.00g of film-forming aid under stirring, add 40.00g of thickener according to the viscosity requirements of the coating, and use 80-100 mesh screen when the product reaches the standard Filter and pack to get the finished product.

Embodiment 2～7

[0024] Adopt the same method as embodiment 1 to prepare water-based fluorocarbon latex paint, the names of raw materials used in embodiments 2-7 and the proportioning ratio as shown in table 3.

[0025] The solid content of the water-based fluorocarbon emulsion used in Examples 1-7 is 40-50%, and the fluorine content of the solvent-soluble matter is 40%.

[0026] The main performance test results of the water-based fluorocarbon latex coatings prepared according to Examples 1 to 7 are shown in Table 4:

[0027] Table 4

[0028]

Test items

Example

1

Example

2

Example

3

Example

4

Example

5

Example

6

Example

7

Tu Mo Appearance

normal

normal

normal

normal

normal

normal

normal

Drying time (surface dry), h

≤2

≤2

≤2

≤2

≤2

≤2

≤2

Contrast Ratio (White and Light)

0.94

0.94

0.95

...

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Abstract

The invention relates to the water fluorocarbon emulsion paint which the weight ratio is: the fluorocarbon 30.00-75.00%, the film forming assistant 1.00-5.00%, the dispersant agent 0.10-2.00%, the pH modifier 0.10-1.00%, the foam suppressor 0.01-1.00%, the tank antiseptic substance 0.01-0.50%, the paint film mildew preventive 0.01-0.50%, the padding 0.00-20.00%, the paint 1.00-20.00%, the thickener 0.10-5.00% and the residuum is the water. The water is added into the tank firstly, then the dispersant agent, the foam suppressor, the tank antiseptic substance, the paint film mildew preventive and the pH modifier are added with the mixing, next the material is draw to the grinder to grind, then the fluorocarbon is added and the film forming assistant is added slowly, then the paint is added to mix the color, the last is the thickener. The invention has solved the problem of the environment pollution in the premise of the weather and pollution resistance.

Description

technical field [0001] The invention relates to a chemical product and a preparation method thereof, in particular to a water-based fluorocarbon latex paint and a preparation method thereof. Background technique [0002] At the beginning of the 21st century, when room temperature curing fluorocarbon coatings began to be used in different fields in my country, the coatings were solvent-based and two-component. Although the coatings had excellent performance, they polluted the environment due to the volatilization of solvents, causing harm to the human body and inconvenient construction. In addition, due to the particularity of the fluorine emulsion polymer, the high fluorine content of the solvent-soluble matter will cause the emulsion to show great non-polarity and low surface tension, and the pH of the emulsion will decrease with the prolongation of the storage time, which is manifested in the color ( The wettability of the filler, the compatibility with the film-forming ai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D127/16C09D5/02
Inventor 高新田朱一玉陈建刚庄建林李忠莫显文
Owner JIANGSU LANLING POLYMER MATERIAL CO LTD
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