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Exterior wall coating and preparation method thereof

A technology for exterior wall coatings and pigments and fillers, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of affecting the decorative appearance of buildings, low gloss, easy back-sticking, etc., and achieve easy large-scale promotion and application, low equipment requirements, The effect of simple preparation process

Inactive Publication Date: 2011-02-16
广州市枫源化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the acrylic paints currently on the domestic market have disadvantages such as low gloss, poor adhesion, and not washable, and are easy to stick back at high temperatures and brittle at low temperatures, resulting in easy cracking and peeling of the paint, and rainwater is easy to penetrate into the wall and corrode the wall. body
This not only affects the decorative appearance of the building, but also reduces the service life of the building

Method used

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  • Exterior wall coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Formulation composition of exterior wall paint:

[0056] raw material

Dosage(kg)

Manufacturer / Supplier

water

24.2

[0057] Interpenetrating network structure silicone acrylic emulsion

20

self made

Styrene acrylic emulsion

20

National starch

Modified Nano Silica

5

self made

Rutile Titanium Dioxide

10

Shanghai Yantai

Ultrafine Calcium Carbonate Powder

10

Shenzhen peak

Kaolin

9

Shenzhen peak

Dispersant 5040

0.3

Rufa Chemical

Defoamer TP-39

0.1

Japan Nopco

Preservative KSG201

0.1

Guangdong Dimei

Leveling agent RM2020

0.3

Rohm and Haas

Thickener 3800

1

Haichuan Chemical

total

100

[0058] The preparation process of the silicone acrylic emulsion with network interpenetrating structure is as follows:

[0059] (1) First, 20 parts by weight...

Embodiment 2

[0074] Formulation composition of exterior wall paint:

[0075] raw material

Dosage(kg)

Manufacturer / Supplier

water

11.8

Interpenetrating network structure silicone acrylic emulsion

30

self made

Silicone acrylic emulsion

20

National starch

Modified Nano Titanium Dioxide

5

self made

Rutile Titanium Dioxide

10

Shanghai Yantai

Ultrafine Calcium Carbonate Powder

10

Shenzhen peak

Kaolin

10

Shenzhen peak

Dispersant 5040

1

Rufa Chemical

Defoamer TP-39

0.2

Japan Nopco

[0076] Preservative KSG201

0.1

Guangdong Dimei

Leveling agent RM2020

0.4

Rohm and Haas

Thickener 3800

1.5

Haichuan Chemical

total

100

[0077] The preparation process of the silicone acrylic emulsion with network interpenetrating structure is as follows:

[0078] (1) First, 22 parts...

Embodiment 3

[0092] Formulation composition of exterior wall paint:

[0093] raw material

Dosage(kg)

Manufacturer / Supplier

water

21.9

Interpenetrating network structure silicone acrylic emulsion

10

self made

Pure acrylic emulsion

40

National starch

Modified Nano Titanium Dioxide

5

self made

Rutile Titanium Dioxide

20

Shanghai Yantai

Dispersant 5040

0.3

Rufa Chemical

Defoamer TP-39

0.1

Japan Nopco

Preservative KSG201

0.1

Guangdong Dimei

Leveling agent RM2020

0.6

Rohm and Haas

Thickener 3800

2

Haichuan Chemical

total

100

[0094] The preparation process of the silicone acrylic emulsion with network interpenetrating structure is as follows:

[0095] (1) First, 23 parts by weight of vinyltriethoxysilane, 6 parts by weight of isobutyl methacrylate, 0.25 parts by weight of N-methylolacrylamide, 0.3 p...

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Abstract

The invention discloses a multifunctional exterior wall coating with strong weather resistance, brushing resistance and high adhesion and a preparation method thereof. The exterior wall coating is prepared from the following raw materials in percentage by weight: 10-30% of silicone acrylic emulsion with a interpenetrating network structure, 10-40% of acrylic ester emulsion, 1-15% of hydrophobically modified inorganic nanoparticles, 10-40% of pigment and filler, 0.3-1% of a dispersing agent, 0.1-0.2% of a defoaming agent, 0.1-0.3% of a preservative, 0.3-0.6% of a flatting agent, 1-2% of a thickening agent, and the balance deionized water. The exterior wall coating of the invention has the advantages of strong weather resistance, brushing resistance, strong adhesion, long service life, simple and convenient preparation process and low equipment requirement, thus being easy for large-scale popularization and application. The exterior wall coating overcomes the defects of poor brushing resistance, poor ageing resistance and the like of the existing exterior wall coating.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an exterior wall paint and a preparation method thereof. Background technique [0002] In recent years, water-based, environmentally friendly, multi-functional and high-performance have become the development trend of architectural exterior wall coatings. With the improvement of people's living standards, the waterproof, anti-mildew, insect-proof and other functions of exterior wall coatings are gradually understood and accepted by the public, thus putting forward higher requirements for the decorative effect of coatings. [0003] At present, the exterior wall paints used in my country are mainly based on acrylic emulsion. Water-based acrylic coatings have the advantages of moderate cost, excellent weather resistance, good adjustability, and no release of organic solvents. They are a type of coating product that has developed rapidly in recent years. However, the acrylic paint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D133/04C09D5/08
Inventor 蒋星亮
Owner 广州市枫源化工有限公司
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