阅读说明：本技术 一种耐水耐污环保型罩面漆及其制备方法 (Water-resistant stain-resistant environment-friendly finish coat and preparation method thereof ) 是由 侯进全 邱永兰 于 2020-03-23 设计创作，主要内容包括：本发明涉及一种耐水耐污环保型罩面漆及其制备方法,罩面漆包括：水45-55份,润湿剂0.1-0.3份,消泡剂0.1-0.3份,抗冻剂0.2-0.7份,增稠剂0.1-0.3份,乳液50-70份,疏水剂1.0-5.0份,成膜助剂0.5-1.5份,防霉抗藻剂0.5-0.8份,氟化石墨1-5份；制备方法包括依照配比依次将各组分混合均匀即得到所述的耐水耐污环保型罩面漆。与现有技术相比,本发明通过在罩面漆内掺入氟化石墨烯,得到具有良好耐水性、耐沾污性、耐候性、耐磨性、显色性的罩面漆,其制备方法具有生产工艺简单、操作方便、易于实现工业化生产等优点。(The invention relates to a waterproof stain-resistant environment-friendly finish coat and a preparation method thereof, wherein the finish coat comprises the following components: 45-55 parts of water, 0.1-0.3 part of wetting agent, 0.1-0.3 part of defoaming agent, 0.2-0.7 part of antifreeze agent, 0.1-0.3 part of thickening agent, 50-70 parts of emulsion, 1.0-5.0 parts of hydrophobic agent, 0.5-1.5 parts of film-forming additive, 0.5-0.8 part of mildew-proof and algae-resistant agent and 1-5 parts of graphite fluoride; the preparation method comprises the steps of uniformly mixing the components in sequence according to the mixture ratio to obtain the waterproof stain-resistant environment-friendly finish coat. Compared with the prior art, the fluorinated graphene is doped in the finish paint, so that the finish paint with good water resistance, stain resistance, weather resistance, wear resistance and color rendering property is obtained, and the preparation method has the advantages of simple production process, convenience in operation, easiness in realizing industrial production and the like.)

1. The water-resistant stain-resistant environment-friendly finish coat is characterized by comprising the following components in parts by weight: 45-55 parts of water, 0.1-0.3 part of wetting agent, 0.1-0.3 part of defoaming agent, 0.2-0.7 part of antifreeze agent, 0.1-0.3 part of thickening agent, 50-70 parts of emulsion, 1.0-5.0 parts of hydrophobic agent, 0.5-1.5 parts of film-forming assistant, 0.5-0.8 part of mildew-proof and algae-resistant agent and 1-5 parts of fluorinated graphene.

2. The water-resistant stain-resistant environment-friendly finish coat as recited in claim 1, wherein the hydrophobizing agent is a silane hydrophobizing agent.

3. The water-resistant stain-resistant environment-friendly finish coat as claimed in claim 1, wherein the antifreeze agent is ethylene glycol or methanol.

4. The water-resistant stain-resistant environment-friendly finish coat as recited in claim 1, wherein the thickener is carboxymethyl cellulose.

5. The water-resistant stain-resistant environment-friendly finish coat as claimed in claim 1, wherein the wetting agent is Dow chemical X-405.

6. The water-resistant stain-resistant environment-friendly finish coat as recited in claim 1, wherein the defoamer is a polysiloxane defoamer.

7. The water-resistant stain-resistant environment-friendly finish coat as recited in claim 1, wherein the emulsion is styrene-acrylic emulsion.

8. The water-resistant stain-resistant environment-friendly finish coat as recited in claim 1, wherein the coalescent is twelve alcohol ester.

9. The water-resistant stain-resistant environment-friendly finish coat according to claim 1, wherein the mildew-resistant and algae-resistant agent is an isothiazolinone bactericide.

10. The method for preparing a water-resistant stain-resistant environment-friendly finish coat as claimed in any one of claims 1 to 9, wherein the method comprises mixing water with a wetting agent and a defoaming agent in sequence according to the weight parts of the components under continuous stirring, then adding the fluorinated graphene, the antifreeze agent, the thickener, the emulsion and the stain-resistant agent in sequence under the ultrasonic power of 400 and 500W and dispersing uniformly, and then adding the film-forming assistant and the mildew-resistant and algae-resistant agent in sequence and mixing uniformly to obtain the finish coat.

Technical Field

The invention belongs to the technical field of coatings for architectural decoration, and relates to a waterproof stain-resistant environment-friendly finish coat and a preparation method thereof.

Background

With the development of the technical level and the improvement of the living standard, people have more and more strict requirements on the facing coating of the building outer wall, so that the use requirement is met, and the performance of each aspect is further expected to be further improved, such as better and different water resistance, easier washing and cleaning of surface dust and dirt, and the like. Therefore, it is necessary to develop a finish paint that forms a water-resistant and stain-resistant structure on the film-forming surface of the paint to effectively improve the stain resistance of the product.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a waterproof stain-resistant environment-friendly finish coat and a preparation method thereof, which are used for solving the problem of poor waterproof stain-resistant performance of the existing finish coat.

The purpose of the invention can be realized by the following technical scheme:

the waterproof stain-resistant environment-friendly finish coat comprises the following components in parts by weight: 45-55 parts of water, 0.1-0.3 part of wetting agent, 0.1-0.3 part of defoaming agent, 0.2-0.7 part of antifreeze agent, 0.1-0.3 part of thickening agent, 50-70 parts of emulsion, 1.0-5.0 parts of hydrophobic agent, 0.5-1.5 parts of film-forming assistant, 0.5-0.8 part of mildew-proof and algae-resistant agent and 1-5 parts of graphite fluoride.

Further, the hydrophobic agent is a silane hydrophobic agent.

Furthermore, the antifreeze is glycol or methanol and is used for reducing the freezing point of the finish paint and avoiding low-temperature frost damage

Furthermore, the thickening agent is carboxymethyl cellulose, and is used for adjusting the viscosity of the finish paint and improving the splash resistance.

Furthermore, the wetting agent is Dow chemical X-405, and the wetting agent has good high temperature resistance, corrosion resistance and good colloid stability.

Further, the defoaming agent is a polysiloxane defoaming agent, has low surface tension and excellent defoaming capability and foam inhibition performance, and has small influence on the surface gloss of the coating.

Further, the emulsion is styrene-acrylic emulsion. The emulsion has better alkali resistance, adhesiveness, stain resistance and weather resistance.

Further, the film-forming aid is alcohol ester twelve.

Furthermore, the mildew-resistant and algae-resistant agent is an isothiazolinone bactericide, has the advantages of small application dose, good compatibility, low toxicity and the like, and has strong antibacterial effect on various bacteria and fungi.

The preparation method of the waterproof stain-resistant environment-friendly finish coat comprises the steps of mixing water with a wetting agent and a defoaming agent in sequence according to the weight ratio of the components in a continuously stirring state, then adding the fluorinated graphene, the antifreeze agent, the thickening agent, the emulsion and the stain resistant agent in sequence under the ultrasonic power of 400-plus-500W, uniformly dispersing, then adding the film forming additive and the mildew-resistant and anti-algae agent in sequence, and uniformly mixing to obtain the finish coat.

Compared with the prior art, the invention has the following characteristics:

1) according to the invention, the fluorinated graphene is doped in the finish paint, the fluorinated graphene has lower surface self-energy C-F bonds, so that the surface tension of the finish paint is reduced, the surface of the finish paint is more compact, when pollutants are attached to the surface of the finish paint, the pollutants are prevented from permeating and absorbing into the finish paint along with water due to the improvement of the surface compactness of the pollutants, and the water resistance, the stain resistance and the cleanability of the finish paint are further improved; in addition, the fluorine group on the fluorinated graphene has stronger electronegativity, and is beneficial to improving the corrosion resistance, oxidation resistance and high temperature resistance of the finish paint. Obtaining finish paint with good water resistance, stain resistance, weather resistance, wear resistance and color rendering property;

2) the finish paint has simple production process and convenient operation, and is easy to realize industrialized and large-scale production.

Detailed Description

The present invention will be described in detail with reference to specific examples. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.