阅读说明：本技术 用于清水混凝土的环保型保护涂料及其制备方法 (Environment-friendly protective coating for fair-faced concrete and preparation method thereof ) 是由 周龙 于 2021-06-22 设计创作，主要内容包括：本发明涉及用于清水混凝土的环保型保护涂料及其制备方法,包括用于清水混凝土的环保型保护涂料,包括以下按质量份数计的原料：天然树脂50-70份、颜料10-15份、溶剂12-20份、流平剂2-4份、乳液型消泡剂5-8份、阻燃剂6-12份以及适量的水。包括本发明所述涂料流平性好,对清水混凝土的综合保护性好,喷涂本发明所述保护剂后,对清水混凝土的阻燃性、平整性、一平方裸露气泡数量、耐水性、耐久性方面都有显著的提升,而且在阻燃与去除内部气泡,能够有效解决现有技术中存在的技术问题。(The invention relates to an environment-friendly protective coating for fair-faced concrete and a preparation method thereof, wherein the environment-friendly protective coating for fair-faced concrete comprises the following raw materials in parts by weight: 50-70 parts of natural resin, 10-15 parts of pigment, 12-20 parts of solvent, 2-4 parts of flatting agent, 5-8 parts of emulsion type defoaming agent, 6-12 parts of flame retardant and a proper amount of water. The coating has good leveling property and comprehensive protection property on the fair-faced concrete, the flame retardance, the smoothness, the number of flat exposed bubbles, the water resistance and the durability of the fair-faced concrete are remarkably improved after the protective agent is sprayed, and the technical problems in the prior art can be effectively solved by retarding flame and removing internal bubbles.)

1. The environment-friendly protective coating for the bare concrete and the preparation method thereof comprise the environment-friendly protective coating for the bare concrete, and are characterized in that: the composite material comprises the following raw materials in parts by weight: 50-70 parts of natural resin, 10-15 parts of pigment, 12-20 parts of solvent, 2-4 parts of flatting agent, 5-8 parts of emulsion type defoaming agent, 6-12 parts of flame retardant and a proper amount of water.

2. The environment-friendly protective coating for fair-faced concrete according to claim 1 and the preparation method thereof, characterized in that: the leveling agent is at least one of silicone oil, polydimethylsiloxane and polyether polyester modified organic siloxane, and defoaming property can be improved by using the silicone oil.

3. The environment-friendly protective coating for fair-faced concrete according to claim 1 and the preparation method thereof, characterized in that: the solvent is at least one of mineral spirit, kerosene, gasoline, benzene, toluene and xylene.

4. A process for the preparation of a protective agent according to any one of claims 1 to 3, comprising the following steps: mixing the natural resin, the pigment, the solvent and water according to the parts by weight, gradually adding half of the emulsion type defoaming agent during mixing, adding the rest materials into the mixed solution, adding a proper amount of water, and stirring.

Technical Field

The invention belongs to the technical field of coatings, and relates to an environment-friendly protective coating for fair-faced concrete and a preparation method thereof.

Background

The coating is usually just one of the paints, which refers to a kind of liquid or solid material that can form a film to protect, decorate or perform other special functions when coated on the surface of an object under certain conditions, and since the early coatings mostly use vegetable oil as a main raw material, the coating is also called as paint, and the synthetic resin replaces the vegetable oil, so the coating is called as coating, the coating is not liquid, the powder coating is a large class of coating varieties, the coating belongs to organic chemical high molecular materials, the formed coating film belongs to a high molecular compound type, according to the classification of modern popular chemical products, the coating belongs to fine chemical products, the modern coatings gradually become a kind of multifunctional engineering materials, and the coating is an important industry in chemical industry.

The coating is smeared on the surface of the fair-faced concrete to protect the fair-faced concrete, the coating is smeared on the surface of an object to isolate an external corrosive medium, prevent corrosion and prolong the service life, the coating has the characteristics of brightness, attractiveness, brightness, beautiful appearance, beautiful color and the like, the original color of the object can be changed, the color can be blended, the environment can be improved, the life can be beautified, the building coating can improve the indoor brightness and play the roles of sound absorption and heat insulation, but the coating has poor fireproof performance, wall surface combustion is easy to cause, bubbles can appear during stirring, and the bubbles can appear on the surface of the gas when the coating is smeared, so that the appearance is poor.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an environment-friendly protective coating for fair-faced concrete and a preparation method thereof, and the specific technical scheme is as follows:

the environment-friendly protective coating for the fair-faced concrete comprises the following raw materials in parts by weight: 50-70 parts of natural resin, 10-15 parts of pigment, 12-20 parts of solvent, 2-4 parts of flatting agent, 5-8 parts of emulsion type defoaming agent, 6-12 parts of flame retardant and a proper amount of water.

As an improvement of the technical scheme, the flatting agent is at least one of silicone oil, polydimethylsiloxane and polyether polyester modified organic siloxane, and the defoaming property can be improved by using the silicone oil.

As an improvement of the technical scheme, the solvent is at least one of mineral spirit, kerosene, gasoline, benzene, toluene and xylene.

The invention also provides a preparation method of the environment-friendly protective coating for the fair-faced concrete; mixing natural resin, pigment, solvent and water according to the parts by weight, gradually adding a galactophore type defoaming agent during mixing, adding the rest materials into the mixed solution, adding a proper amount of water, and stirring.

The invention has the beneficial effects that: the coating has good leveling property and good comprehensive protection property on the fair-faced concrete, the flame retardance, the leveling property, the number of square exposed bubbles, the water resistance and the durability of the fair-faced concrete are remarkably improved after the protective agent is sprayed, and the technical problems in the prior art can be effectively solved by retarding flame and removing internal bubbles.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

The raw materials adopted by the invention are conventional commercial products, and can be purchased in the market.

The environment-friendly protective coating for the fair-faced concrete comprises the following raw materials in parts by weight: 50-70 parts of natural resin, 10-15 parts of pigment, 12-20 parts of solvent, 2-4 parts of flatting agent, 5-8 parts of emulsion type defoaming agent, 6-12 parts of flame retardant and a proper amount of water;

the emulsion type defoaming agent has larger tension of silicone oil in the emulsion type defoaming agent. Meanwhile, the emulsion type defoaming agent has the characteristics of low price, wide application range, obvious defoaming effect and the like, is used in the organosilicon defoaming agent in the largest amount, is more environment-friendly to use, and effectively avoids pollution.

Flame retardant, microencapsulated red phosphorus. The microencapsulated red phosphorus overcomes the inherent disadvantages of red phosphorus, has high efficiency, low smoke and no generation of toxic gas in processing, and improves the dispersibility, physical and mechanical properties, thermal stability and flame retardant property. Common red phosphorus is easy to oxidize and absorb moisture in the air, is easy to cause dust explosion, is difficult to transport, has poor compatibility with high polymer materials and the like, and has limited application range.

The leveling agent is at least any one of silicone oil, polydimethylsiloxane and polyether polyester modified organosiloxane, and defoaming property can be improved by using the silicone oil;

the solvent is at least one of mineral spirit, kerosene, gasoline, benzene, toluene and xylene;

the invention also provides a preparation method of the environment-friendly protective coating for the fair-faced concrete; mixing natural resin, pigment, solvent and water according to the parts by weight, gradually adding a galactophore type defoaming agent during mixing, adding the rest materials into the mixed solution, adding a proper amount of water, and stirring.

Example 1

The environment-friendly protective coating for the fair-faced concrete comprises the following raw materials in parts by weight: 50 parts of natural resin, 10 parts of pigment, 12 parts of solvent, 2 parts of flatting agent, 5 parts of emulsion type defoaming agent, 6 parts of flame retardant and a proper amount of water;

the leveling agent in the embodiment is silicone oil, and defoaming property can be increased by using the silicone oil;

the solvent in the embodiment is mineral spirit and kerosene;

the preparation method of the environment-friendly protective coating for fair-faced concrete comprises the following steps: mixing the natural resin, the pigment, the solvent and water according to the parts by weight, gradually adding half of the emulsion type defoaming agent during mixing, adding the rest materials into the mixed solution, adding a proper amount of water and stirring.

Example 2

The environment-friendly protective coating for the fair-faced concrete comprises the following raw materials in parts by weight: 55 parts of natural resin, 11 parts of pigment, 14 parts of solvent, 2.5 parts of flatting agent, 5.5 parts of emulsion type defoaming agent, 7 parts of flame retardant and a proper amount of water;

the leveling agent in the embodiment is polydimethylsiloxane, and defoaming property can be improved by using silicone oil;

the solvent in the embodiment is gasoline and benzene;

the preparation method of the environment-friendly protective coating for fair-faced concrete comprises the following steps: mixing the natural resin, the pigment, the solvent and water according to the parts by weight, gradually adding half of the emulsion type defoaming agent during mixing, adding the rest materials into the mixed solution, adding a proper amount of water and stirring.

Example 3

The environment-friendly protective coating for the fair-faced concrete comprises the following raw materials in parts by weight: 60 parts of natural resin, 12 parts of pigment, 15 parts of solvent, 3 parts of flatting agent, 6 parts of emulsion type defoaming agent, 8 parts of flame retardant and a proper amount of water;

the leveling agent in the embodiment is polyether polyester modified organic siloxane, and defoaming property can be improved by using silicone oil;

the solvent in the embodiment is mineral spirit or gasoline;

the preparation method of the environment-friendly protective coating for fair-faced concrete comprises the following steps: mixing the natural resin, the pigment, the solvent and water according to the parts by weight, gradually adding half of the emulsion type defoaming agent during mixing, adding the rest materials into the mixed solution, adding a proper amount of water and stirring.

Example 4

The environment-friendly protective coating for the fair-faced concrete comprises the following raw materials in parts by weight: 65 parts of natural resin, 13 parts of pigment, 17 parts of solvent, 3.5 parts of flatting agent, 6.5 parts of emulsion type defoaming agent, 9 parts of flame retardant and a proper amount of water;

the leveling agent in the embodiment is silicone oil, polydimethylsiloxane and polyether polyester modified organic siloxane, and defoaming property can be improved by using the silicone oil;

the solvent in the embodiment is mineral spirit, kerosene, gasoline, benzene, toluene and xylene;

the preparation method of the environment-friendly protective coating for fair-faced concrete comprises the following steps: mixing the natural resin, the pigment, the solvent and water according to the parts by weight, gradually adding half of the emulsion type defoaming agent during mixing, adding the rest materials into the mixed solution, adding a proper amount of water and stirring.

Comparative example 1

The environment-friendly protective coating for the fair-faced concrete comprises the following raw materials in parts by weight: 50 parts of natural resin, 10 parts of pigment, 12 parts of solvent, 0 part of flatting agent, 0 part of emulsion type defoaming agent, 0 part of flame retardant and a proper amount of water;

the preparation method of the environment-friendly protective coating for fair-faced concrete comprises the following steps: mixing the natural resin, the pigment, the solvent and water according to the parts by weight, gradually adding half of the emulsion type defoaming agent during mixing, adding the rest materials into the mixed solution, adding a proper amount of water and stirring.

TABLE 1

Examples of the experiments

After the fair-faced concrete is poured, the protective agents prepared in examples 1 to 4 and comparative example 1 are respectively sprayed on the surface of the fair-faced concrete until the surface of the fair-faced concrete is completely wetted, the clear-faced concrete is kept stand until the protective agents are completely absorbed by the fair-faced concrete, and the protective agents can be repeatedly sprayed for 3 times. And then under the same test conditions, obtaining the flame retardance, the smoothness, the quantity of the exposed bubbles in one square, the water resistance and the durability to comprehensively characterize the environment-friendly protective coating of the fair-faced concrete.

TABLE 2

Referring to tables 1-2, the technical effect of examples 2 and 3 in terms of overall performance (e.g., one square bare bubble count) is the worst of the 4 sets of examples, as can be seen by comparing the data of examples 1-4 with that of comparative example 1. However, as can be seen from the comparison of the test data of example 2 and example 3 with the test data of comparative example 1, the technical effect of the embodiment of example 3 in terms of flame retardancy, flatness, the number of one-square bare bubbles, water resistance and durability is significantly better than that of comparative example 1. Therefore, it can be confirmed that the technical solution of the present invention has a significantly better technical effect than that of comparative example 1.

Therefore, the technical scheme of the invention has the following unexpected technical effects: the flame retardance, the smoothness, the number of the exposed air bubbles in one square, the water resistance and the durability of the fair-faced concrete are all remarkably improved, and the technical problems in the prior art can be effectively solved by retarding and removing the internal air bubbles. In addition, a synergistic effect exists among technical characteristics of the technical scheme of the invention, for example, the silicone oil in the leveling agent increases the bubble removal performance.

The specific technology not described in the present invention is the prior art.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the present invention as defined by the appended claims.