阅读说明：本技术 外墙涂料施工方法 (Exterior wall coating construction method ) 是由 张海明 佟健 郭嘉灏 陈本 林平 于 2019-11-18 设计创作，主要内容包括：本发明涉及涂料施工领域,针对外墙涂料所形成的涂层容易开裂的问题,提供了一种外墙涂料施工方法,该技术方案如下：包括以下步骤：S1、基面处理；S2、批刮外墙弹性腻子层；S3、批刮外墙补平腻子层；S4、涂刷水性外墙抗碱底漆层；S5、涂刷面漆层；其中,面漆包括以下质量份数的组分：聚醋酸乙烯乳液60-70份；水30-35份；颜料10-15份；成膜助剂5-8份；溶剂10-15份；3-氨基正丁醇1-2份；2-氯-3-(三氟甲基)吡嗪0.1-0.3份；2-氯-4-三氟甲基嘧啶0.2-0.5份。通过各层涂料的互相配合,有利于增强外墙涂料的抗水性能以及抗腐蚀性能,使得外墙涂料所形成的涂层更加不容易在风吹日晒雨淋的环境下出现开裂或剥落的情况。(The invention relates to the field of coating construction, and provides an exterior wall coating construction method aiming at the problem that a coating formed by exterior wall coating is easy to crack, the technical scheme is as follows: the method comprises the following steps: s1, base surface treatment; s2, scraping the elastic putty layer of the outer wall; s3, scraping the outer wall to fill and level the putty layer; s4, coating the water-based alkali-resistant primer layer on the outer wall; s5, painting a finish paint layer; the finishing paint comprises the following components in parts by mass: 60-70 parts of polyvinyl acetate emulsion; 30-35 parts of water; 10-15 parts of pigment; 5-8 parts of a film-forming assistant; 10-15 parts of a solvent; 1-2 parts of 3-aminon-butanol; 0.1-0.3 part of 2-chloro-3- (trifluoromethyl) pyrazine; 0.2-0.5 part of 2-chloro-4-trifluoromethylpyrimidine. Through the mutual matching of the coatings of all layers, the water resistance and the corrosion resistance of the exterior wall coating are favorably enhanced, so that the coating formed by the exterior wall coating is more difficult to crack or peel under the environment of wind, sunshine and rain.)

1. An exterior wall coating construction method is characterized in that: the method comprises the following steps:

s1, basal plane treatment: cleaning a base surface;

s2, scraping the elastic putty layer of the outer wall: coating the outer wall elastic putty slurry on the base surface to form an outer wall elastic putty layer;

s3, scraping the outer wall to fill and smooth the putty layer: coating exterior wall leveling putty slurry on the exterior wall elastic putty layer to form an exterior wall leveling putty layer;

s4, coating an aqueous alkali-resistant primer layer for the outer wall: coating a water-based outer wall alkali-resistant primer on the outer wall leveling putty layer to form a water-based outer wall alkali-resistant primer layer;

s5, painting a finishing paint layer: coating a finish paint on the water-based outer wall alkali-resistant primer layer to form a finish paint layer;

the finishing paint comprises the following components in parts by mass:

60-70 parts of polyvinyl acetate emulsion;

30-35 parts of water;

10-15 parts of pigment;

5-8 parts of a film-forming assistant;

10-15 parts of a solvent;

1-2 parts of 3-aminon-butanol;

0.1-0.3 part of 2-chloro-3- (trifluoromethyl) pyrazine;

0.2-0.5 part of 2-chloro-4-trifluoromethylpyrimidine.

2. The exterior wall paint construction method of claim 1, wherein: the coating rate of the outer wall elastic putty layer and the outer wall leveling putty layer is 2.5kg/m²The coating rate of the water-based exterior wall alkali-resistant primer layer is 0.12kg/m²Coating rate of topcoat layerIs 0.25kg/m²。

3. The exterior wall paint construction method of claim 2, wherein: the outer wall leveling putty layer and the finish paint layer are respectively coated with two layers in a transverse and vertical mode.

4. The exterior wall paint construction method of claim 3, wherein: in the steps S2 and S3, when the elastic putty layer and the leveling putty layer of the outer wall are painted, the elastic putty layer and the leveling putty layer of the outer wall need to be scraped back and forth twice in batch to ensure that the elastic putty layer and the leveling putty layer of the outer wall are compact and bubble-free.

5. The exterior wall paint construction method according to any one of claims 1 to 4, characterized in that: the pigment is prepared by mixing kaolin and titanium dioxide in a mass portion ratio of 1: 1.

6. The exterior wall paint construction method according to any one of claims 1 to 4, characterized in that: the film-forming additive is prepared by mixing 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate and propylene glycol butyl ether in a mass ratio of 2: 3.

7. The exterior wall paint construction method according to any one of claims 1 to 4, characterized in that: the solvent is mineral olein.

8. The exterior wall paint construction method according to any one of claims 1 to 4, characterized in that: the finish paint also comprises the following components in parts by mass:

1-2 parts of talcum powder.

9. The exterior wall paint construction method according to any one of claims 1 to 4, characterized in that: the finish paint also comprises the following components in parts by mass:

0.2-0.5 part of hexabenzocoronene.

10. The exterior wall paint construction method according to any one of claims 1 to 4, characterized in that: the finish paint also comprises the following components in parts by mass:

0.5-1 part of allicin.

Technical Field

The invention relates to the field of coating construction, in particular to an exterior wall coating construction method.

Background

The coating is traditionally named as paint in China. The coating is a material which can be coated on the surface of a coated object and can form a firmly attached continuous film, and can play a role in protecting and beautifying a building.

The outer wall coating generally can play a certain decorative effect, but the outer wall coating is exposed in the atmosphere and is subjected to the actions of wind, sunlight, salt spray corrosion, rain, cold and heat change and the like, so that the coating is easy to crack, pulverize, peel off, discolor and the like, and the coating is easy to lose the original decorative protection function, and therefore, the development of the outer wall coating with weather resistance is very important.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an exterior wall coating construction method which has the advantage of being beneficial to improving the weather resistance of the exterior wall coating.

In order to achieve the purpose, the invention provides the following technical scheme:

an exterior wall coating construction method comprises the following steps:

s1, basal plane treatment: cleaning a base surface;

s2, scraping the elastic putty layer of the outer wall: coating the outer wall elastic putty slurry on the base surface to form an outer wall elastic putty layer;

s3, scraping the outer wall to fill and smooth the putty layer: coating exterior wall leveling putty slurry on the exterior wall elastic putty layer to form an exterior wall leveling putty layer;

s4, coating an aqueous alkali-resistant primer layer for the outer wall: coating a water-based outer wall alkali-resistant primer on the outer wall leveling putty layer to form a water-based outer wall alkali-resistant primer layer;

s5, painting a finishing paint layer: coating a finish paint on the water-based outer wall alkali-resistant primer layer to form a finish paint layer;

the finishing paint comprises the following components in parts by mass:

60-70 parts of polyvinyl acetate emulsion;

30-35 parts of water;

10-15 parts of pigment;

5-8 parts of a film-forming assistant;

10-15 parts of a solvent;

1-2 parts of 3-aminon-butanol;

0.1-0.3 part of 2-chloro-3- (trifluoromethyl) pyrazine;

0.2-0.5 part of 2-chloro-4-trifluoromethylpyrimidine.

By adopting the technical scheme, the outer wall elastic putty layer, the outer wall leveling putty layer, the water-based outer wall alkali-resistant primer layer and the finish paint layer are sequentially coated on the base surface, so that the water resistance and the corrosion resistance of the coating formed by the outer wall paint are enhanced, and the coating formed by the outer wall paint is more difficult to crack or peel under the environment of wind, sun and rain; meanwhile, the flexibility of the coating formed by the exterior wall coating is enhanced, so that the coating formed by the exterior wall coating is not easy to crack, and the service life of the coating is prolonged.

By adopting the 3-amino n-butyl alcohol, the 2-chloro-3- (trifluoromethyl) pyrazine and the 2-chloro-4-trifluoromethyl pyrimidine to cooperate with each other, the weather resistance of the finish paint is favorably enhanced, so that the finish paint layer is less prone to cracking, peeling and other phenomena under the environment of wind blowing, sun drying and rain showering, the decorative effect of the finish paint is less prone to being influenced, the service life of the finish paint is favorably prolonged, and the later maintenance cost of the finish paint is reduced.

The invention is further configured to: the coating rate of the outer wall elastic putty layer and the outer wall leveling putty layer is 2.5kg/m²The coating rate of the water-based exterior wall alkali-resistant primer layer is 0.12kg/m²The coating rate of the topcoat layer was 0.25kg/m²。

By adopting the technical scheme, the coating rate of each layer of coating on the outer wall is controlled, so that the coating thickness of each coating on the outer wall can be better controlled, the coatings on the outer wall can be better matched with each other to play a role in resisting water and corrosion, and meanwhile, the construction cost can be reduced, and the consumption of the coating is not easy to be excessive.

The invention is further configured to: the outer wall leveling putty layer and the finish paint layer are respectively coated with two layers in a transverse and vertical mode.

By adopting the technical scheme, the two outer wall leveling putty layers are respectively coated transversely and vertically, so that the base surface can be better leveled, the flatness of the outer wall body is higher, and the outer wall coating can better keep the decorative effect; meanwhile, the bonding firmness among all the layers of the exterior wall coating is facilitated, so that all the layers of the exterior wall coating are not easy to separate, and a coating formed by the exterior wall coating is not easy to crack.

The invention is further configured to: in the steps S2 and S3, when the elastic putty layer and the leveling putty layer of the outer wall are painted, the elastic putty layer and the leveling putty layer of the outer wall need to be scraped back and forth twice in batch to ensure that the elastic putty layer and the leveling putty layer of the outer wall are compact and bubble-free.

By adopting the technical scheme, the elastic putty layer of the outer wall and the filling putty layer of the outer wall are guaranteed to be compact and bubble-free by scraping back and forth twice, so that the coating formed by the outer wall coating is not easy to leave bubbles inside, the coating formed by the outer wall coating is not easy to have stress weak points, and the coating formed by the outer wall coating is not easy to crack.

The invention is further configured to: the pigment is prepared by mixing kaolin and titanium dioxide in a mass portion ratio of 1: 1.

By adopting the technical scheme, the pigment is formed by mixing the kaolin and the titanium dioxide in a mass ratio of 1:1, so that the pigment is favorably and uniformly dispersed in the finish paint, the finish paint is more uniformly colored, and the finish paint has a better decorative effect; meanwhile, the mutual cooperative matching of the kaolin and the titanium dioxide is beneficial to enhancing the weather resistance of the finish paint to a certain extent, so that the finish paint is not easy to crack under the environment of wind, sunshine and rain.

The invention is further configured to: the film-forming additive is prepared by mixing 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate and propylene glycol butyl ether in a mass ratio of 2: 3.

By adopting the technical scheme, the 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate and the propylene glycol butyl ether are mixed according to the mass part ratio of 2:3 to form the film forming auxiliary agent, so that the film forming effect of the finish paint is improved, and the decorative effect of the finish paint is better; meanwhile, the weather resistance of the finish paint is favorably enhanced, so that the finish paint is less prone to cracking and peeling under the environment of wind, sunlight and rain, the decorative effect of the finish paint is less prone to being influenced, the later maintenance cost of the finish paint is favorably reduced, and the economic benefit is improved.

The invention is further configured to: the solvent is mineral olein.

By adopting the technical scheme, the mineral olein is adopted as the solvent, so that the components in the finish paint can be better dissolved in the solvent, and the components in the finish paint can be better cooperated with each other to play a role, and the film forming effect and the weather resistance effect of the finish paint are better.

The invention is further configured to: the finish paint also comprises the following components in parts by mass:

1-2 parts of talcum powder.

By adopting the technical scheme, the talcum powder is added, so that the filling of the pores in the finish paint is facilitated, the compactness of the finish paint is higher, air holes are not easy to leave in the finish paint, the anti-cracking performance of the finish paint is further facilitated to be enhanced, and the finish paint is not easy to crack when being stressed.

The invention is further configured to: the finish paint also comprises the following components in parts by mass:

0.2-0.5 part of hexabenzocoronene.

By adopting the technical scheme, the hexabenzocoronene is added, so that the 3-amino n-butyl alcohol, the 2-chloro-3- (trifluoromethyl) pyrazine and the 2-chloro-4-trifluoromethyl pyrimidine can be better promoted to be mutually cooperated, the weather resistance of the finish paint can be better enhanced, the finish paint is less prone to cracking in the environment of wind, sunshine and rain, the decorative effect of the finish paint can be better maintained, meanwhile, the later maintenance cost of an outer wall can be reduced, and the economic benefit is improved.

The invention is further configured to: the finish paint also comprises the following components in parts by mass:

0.5-1 part of allicin.

By adopting the technical scheme, the garlicin is beneficial to inhibiting breeding and growth of bacteria and fungi, so that the mildew condition is less likely to occur on the surface of the finish paint, and the decorative effect of the finish paint is less likely to be influenced.

In conclusion, the invention has the following beneficial effects:

1. the elastic putty layer, the leveling putty layer, the water-based alkali-resistant primer layer and the finish paint layer of the outer wall are sequentially coated on the base surface, so that the water resistance and the corrosion resistance of the coating formed by the outer wall paint are enhanced, and the coating formed by the outer wall paint is less prone to cracking or peeling under the environment of wind, sun and rain;

2. the flexibility of the coating formed by the exterior wall coating is favorably enhanced through the mutual matching of the exterior wall elastic putty layer, the exterior wall leveling putty layer, the water-based exterior wall alkali-resistant primer layer and the finish paint layer, so that the coating formed by the exterior wall coating is more difficult to crack, and the service life of the coating is favorably prolonged;

3. by adopting the 3-amino n-butyl alcohol, the 2-chloro-3- (trifluoromethyl) pyrazine and the 2-chloro-4-trifluoromethyl pyrimidine to cooperate with each other, the weather resistance of the finish paint is favorably enhanced, so that the finish paint layer is less prone to cracking, peeling and the like under the environment of wind, sun and rain, the service life of the finish paint is favorably prolonged, and the later maintenance cost of the finish paint is reduced.

Drawings

FIG. 1 is a process flow diagram of the exterior wall coating construction method of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

In the following examples, the exterior wall elastic putty powder used in Qingdao Huanxiu paint Co.

In the following examples, the exterior wall leveling putty powder was the exterior wall leveling putty powder of Kunming Green decorations boat building materials Co.

In the following examples, the water-based exterior wall alkali-resistant primer of Guangdong Pasteur chemical Co., Ltd was used.

In the following examples, a polyvinyl acetate emulsion having a trade name of 730 from Jining HuaKai resin Co., Ltd is used as the polyvinyl acetate emulsion.

In the following examples, 3-aminon-butanol was 3-aminon-butanol of A53191-1g from Shanghai Ji to Biochemical technology Co., Ltd.

In the following examples, 2-chloro-3- (trifluoromethyl) pyrazine available from Hangzhou Shali medicine science and technology Co., Ltd, as its product number, CL6539, was used.

In the following examples, 2-chloro-4-trifluoromethylpyrimidine (available from Biotech, Inc., of Shanghai province) was used.

In the following examples, kaolin obtained from Cinese county Bright mineral processing Co., Ltd was used.

In the following examples, titanium dioxide from shinyless mine products processing ltd, lingshou county was used.

In the following examples, 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate was 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, Puyang hong Kogyo high-tech development Co.

In the following examples, propylene glycol butyl ether was prepared from propylene glycol butyl ether available from Jiangsu Chuangteng New Material science and technology Co., Ltd, Cat # 29387-86-8.

In the following examples, mineral oil essence from Shanghai Qibao chemical Co., Ltd was used as mineral oil essence.

In the following examples, talc powder having a particle size of 1250 mesh from Shijia Bennuo mineral Co., Ltd was used.

In the following examples, a hexabenzocoronene having a product number 12121 from Wuhan Ruilan Kangtai chemical Co.

In the following examples, allicin was produced by the method of Jinan Biqi chemical Limited under the product number BQ-20181203005.