Negative ion coating and preparation method thereof

Abstract

The invention discloses a negative ion coating which comprises the following components in percentage by mass: 15-25% of titanium dioxide, 4-6% of kaolin, 10-20% of high-calcium powder, 20-40% of natural resin emulsion, 1-2% of tourmaline, 1-2% of rare earth spar powder and 25-30% of water. A preparation method of the negative ion coating comprises the following steps: sequentially adding the titanium dioxide, the kaolin, the high-calcium powder, the rare earth spar powder and the tourmaline into a reaction kettle filled with the water; and finally, adding the natural resin emulsion, and uniformly stirring to obtain the product. By introducing the rare spar, the tourmaline and the natural resin emulsion, the prepared anion coating has the function of continuously releasing anions, can effectively improve the indoor air quality and remove harmful pollutants such as formaldehyde in the indoor air, and has the antibacterial and bacteriostatic functions, meanwhile, the preparation method is simple, the industrial production cost is reduced, and the preparation method is suitable for industrial production. The prepared negative ion coating has good negative ion release performance and decoration performance, is particularly suitable for occasions such as residential buildings, commercial buildings and public buildings, and has wide application prospects.

Description

Technical Field

[0001] The invention relates to the technical field of air purification, and in particular to a negative ion coating and a preparation method thereof. Background Art

[0002] According to statistics, pollutants and organic chemicals discharged into the atmosphere are the main reasons for the increase in chemical concentration in the ozone layer. Automobiles account for 34.9% of the emission of these toxic and harmful substances, and paint accounts for 46.2%. There is no good way to eliminate these pollutants. Opening windows for ventilation can only temporarily reduce the concentration of pollutants. In many cases, windows cannot be opened for a long time, and the pollution source is constantly releasing pollutants, so indoor pollution is difficult to cure. Therefore, our company began to develop paint that can release negative ions to purify the air.

[0003] Air is a mixture, composed of a variety of molecules. Due to the influence of cosmic rays, ultraviolet rays, soil and air radiation in nature, some molecules in the air release electrons and anions. Most of the free electrons generated by the ionization of air molecules under the action of high pressure or strong rays are obtained by oxygen. Therefore, negative air ions are often collectively referred to as "negative oxygen ions". Negative oxygen ions are negatively charged and are colorless and odorless. The significant impact of negative ions on human health, longevity and ecology has been verified by medical experts at home and abroad through clinical practice. According to medical data, negative air oxygen ions are known as vitamins in the air and can degrade and neutralize harmful gases in the air. Regulate human physiological functions, eliminate fatigue, improve sleep, prevent respiratory diseases, improve cardiovascular and cerebrovascular diseases, lower blood pressure, increase people's appetite, and enhance skin elasticity.

[0004] Negative ions have an outstanding role in anti-oxidation (reduction) and anti-aging, and the anti-oxidation (reduction) of negative ions is a basic chemical principle. Chemical reactions are the exchange of electrons on the electron layer. Losing electrons is called oxidation, and gaining electrons is called reduction. Molecules (groups) or atoms that lose electrons show positive charges and are called positive ions, while molecules (groups) or atoms that gain excess electrons show negative charges and are called negative ions. Therefore, negative ions have a negative potential, that is, they have excess electrons, which can be supplemented to aging cells or blood cells. This achieves the role of anti-oxidation and anti-aging, and reduces free radicals. Negative oxygen ions are oxygen ions that have gained excess electrons. In the body, when the electrons of lipids are robbed, they will be oxidized into age spots; when the electrons of proteins are robbed, cell functions will be abnormal; when the electrons of genes are robbed, cancer will occur. In the body, this substance that robs electrons is called a "free radical". From the perspective of quantum medicine, the robbing of electrons is the source of all diseases. Similarly, iron rusts, stones weather, and plants rot, all of which are the result of oxidation. Negative oxygen ions carry a negative potential, that is, they have excess electrons. After the electrons are supplemented to the free radicals, the free radicals are reduced, that is, the free radicals are eliminated, and the negative oxygen ions themselves are converted into oxygen molecules O2.

[0005] However, although a certain amount of negative ion additives are added to the existing coatings containing negative ion additives, the concentration of negative air ions produced by the products is not high and the effect is not long-lasting. Summary of the invention

[0006] The object of the present invention is to provide a negative ion coating and a preparation method thereof to solve the problems raised in the above background technology.

[0007] To achieve the above purpose, the present invention provides a negative ion coating, which comprises, by mass percentage, 15-25% titanium dioxide, 4-6% kaolin, 10-20% high calcium powder, 20-40% natural resin emulsion, 1-2% tourmaline, 1-2% rare earth powder and 25-30% water.

[0008] A method for preparing a negative ion coating comprises the following steps:

[0009] S1. Add water to the reaction mixture and stir using a paint mixer;

[0010] S2. Add titanium dioxide, kaolin, and high calcium powder into the reactor, and stir using a paint mixer until the solid added into the reactor is dissolved without particles;

[0011] S3, add dilute spar powder and tourmaline to the reactor, and stir using a paint mixer until the solid added to the reactor is dissolved without particles;

[0012] S4. Add the natural resin emulsion into the reaction kettle and stir it with a paint mixer. After stirring evenly, stop the paint mixer for more than 2 hours to dissipate heat, and then package the obtained negative ion paint.

[0013] As a preferred technical solution of the present invention, in step S2, the stirring time of the paint mixer is 1 hour, and the stirring speed is 120 r / min.

[0014] As a preferred technical solution of the present invention, in step S3, the stirring time of the paint mixer is 30 minutes, and the stirring speed is 120 r / min.

[0015] As a preferred technical solution of the present invention, in step S4, the stirring time of the paint mixer is 30 minutes, and the stirring speed is 120 r / min.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention introduces rare earth, tourmaline and natural resin emulsion to make the prepared negative ion coating have the function of continuously releasing negative ions, which can effectively improve the indoor air quality, remove harmful pollutants such as formaldehyde in the indoor air, and have antibacterial and antimicrobial functions. At the same time, the preparation method is simple and convenient, which is conducive to reducing the cost of industrial production. The negative ion coating prepared by the present invention has good negative ion release performance and decorativeness, and is particularly suitable for residential buildings, commercial buildings, public buildings and other occasions, and has broad application prospects. The negative oxygen ions generated by the negative ion coating are a necessary factor for human health and longevity. On the one hand, negative oxygen ions have a positive effect on the activities of the human central nervous system, which can make people excited, energetic and focused. On the other hand, negative ions can not only make the air fresh, but also have the functions of sterilization, dust prevention, disease prevention, disinfection and air purification.

[0018] (2) The negative ion coating prepared by the present invention can effectively release 2000 / cm by evenly applying it on the wall. 3 The above negative oxygen ions can naturally purify harmful gases such as formaldehyde, toluene, TVOC, etc. in the air 24 hours a day, and have antibacterial and antimicrobial effects. They do not require additional energy consumption, are energy-efficient, and are green and environmentally friendly. No harmful gas substances are produced during the process. They can effectively improve the air quality of the living environment, achieve a natural ecological level of fresh air for the living environment, and have certain health and immunity-enhancing effects on the body. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] Example 1

[0021] This embodiment provides a method for preparing a negative ion coating, comprising the following steps:

[0022] S1. Add 28% water to the reaction mixture and stir using a paint mixer;

[0023] S2. Add 20% titanium dioxide, 5% kaolin, and 15% high calcium powder into the reactor, and stir using a paint mixer for 1 hour until the solid added to the reactor is dissolved without particles, with a stirring speed of 120 r / min;

[0024] S3, add 1% rare earth powder and 1% tourmaline to the reactor, use a paint mixer to stir for 30 minutes, until the solid added to the reactor is dissolved without particles, the stirring speed is 120r / min;

[0025] S4. Add 30% natural resin emulsion into the reactor, stir for 30 minutes using a paint mixer at a stirring speed of 120 r / min. After stirring evenly, stop the paint mixer for more than 2 hours to dissipate heat, and then package the obtained negative ion paint.

[0026] Example 2

[0027] The negative ion coating was prepared according to the preparation method of Example 1, except that the raw materials of the negative ion purification liquid included: 29% water, 20% titanium dioxide, 5% kaolin, 15% high calcium powder, 0% rare earth powder, 1% tourmaline, and 30% natural resin emulsion.

[0028] Example 3

[0029] The negative ion coating is prepared according to the preparation method of Example 1, except that the raw materials of the negative ion purification liquid include: 29% water, 20% titanium dioxide, 5% kaolin, 15% high calcium powder, 1% rare stone powder, 0% tourmaline, and 30% natural resin emulsion.

[0030] Test Example 1

[0031] Before painting, the negative ion detector was used for detection, and then the wall and ceiling of the house with an area of ​​100 square meters were painted twice with the above embodiments, and the wall was naturally ventilated and waited for the wall to be completely dry before testing with the formaldehyde detector. The negative ion purification liquid prepared in Examples 1-5 was tested for formaldehyde purification rate and formaldehyde purification durability using the "JC / T1074-2021 Purification Performance of Indoor Air Purification Function Coating Materials" standard. The specific test data are shown in Table 1.

[0032] Test Example 2

[0033] Before painting, formaldehyde and negative ion detectors were used for detection, and then the above embodiments were used to paint the walls and ceilings of a house with an area of ​​100 square meters for 2 times, and the walls were naturally ventilated and waited for them to be completely dry before testing with a negative ion detector. The negative ion purification liquids prepared in Examples 1-5 were tested for air negative ion induction using the standard "HG / T4109-2009 Negative Ion Functional Coatings", and the specific test data are shown in Table 1.

[0034] Table 1 Test data table of test case 1 and test case 2

[0035]

[0036]

[0037] It can be seen from the test results that the raw materials of the negative ion purification liquid prepared by the present invention lack one of the rare crystal stone powder and tourmaline, which greatly reduces the generation of negative oxygen ions, while having little effect on the formaldehyde purification effect. A large amount of negative oxygen ions are generated under the synergistic effect of the rare crystal stone powder and tourmaline, so that the coating has the function of continuously releasing negative ions.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A negative ion coating, characterized in that: Calculated by mass percentage, it includes: 15-25% titanium dioxide, 4-6% kaolin, 10-20% high calcium powder, 20-40% natural resin emulsion, 1-2% tourmaline, 1-2% rare stone powder and 25-30% water.

2. A method for preparing a negative ion coating, characterized in that: The following steps are involved: S1. Add water to the reaction mixture and stir using a paint mixer; S2. Add titanium dioxide, kaolin, and high calcium powder into the reactor, and stir using a paint mixer until the solid added into the reactor is dissolved without particles; S3, add dilute spar powder and tourmaline to the reactor, and stir using a paint mixer until the solid added to the reactor is dissolved without particles; S4. Add the natural resin emulsion into the reaction kettle and stir it with a paint mixer. After stirring evenly, stop the paint mixer for more than 2 hours to dissipate heat, and then package the obtained negative ion paint.

3. The method for preparing a negative ion coating according to claim 2, characterized in that: In step S2, the paint mixer has a stirring time of 1 hour and a stirring speed of 120 r / min.

4. The method for preparing a negative ion coating according to claim 2, characterized in that: In step S3, the paint mixer has a stirring time of 30 minutes and a stirring speed of 120 r / min.

5. The method for preparing a negative ion coating according to claim 2, characterized in that: In step S4, the paint mixer has a stirring time of 30 minutes and a stirring speed of 120 r / min.

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