TW201425212A - Method of making paint containing porous hollow nano-spheres - Google Patents

Abstract

A method of making a paint containing porous hollow nano-spheres comprises: providing the nano calcium diphosphate as a central core; adding the silicon dioxide to the outer layer of the central core as the coverage layer; adding the strong acid cation exchange resin to make the interior of the coverage layer hollow and generate micro-holes in the coverage layer; and adding the coverage layer product containing the silicon dioxide into a paint containing the citric acid to enable acid-base neutralization and eliminate the basic calcium hydroxide or magnesium hydroxide generated from the moisture in air in the cement or brick.

Description

Method for producing paint with porous hollow nanosphere

The invention relates to a method for preparing a wall cancer resistant coating, in particular to a strong acid-base neutralization function through porous hollow nano particles, so as to improve the application value of paint or cement paint to complement the currently available paint paints. Insufficient function, the method of making porous hollow nanospheres.

According to the current commercial coatings can be divided into the following:

1. Paint - Acrylic resin with excellent weather resistance and alkali resistance as the main component, suitable for inner and outer wall protection and decorative paint for cement buildings.

2. Water-based cement paint - It is made of water-based resin and water-resistant and alkali-resistant resin and special pigments. It is suitable for interior and exterior wall protection and decorative paint for cement buildings. Its products are divided into two types: flat light type and bright light type. In general, the light-type durability is better, but the texture is poor, and the flat-type texture is better.

3. Latex paint - refined by emulsified vinyl acetate (PVAC) copolymer resin and alkali-resistant raw pigment, suitable for cement building inner wall, engineering decorative water coating.

However, most of the conventional paints are aesthetically functional and have no anti-wall cancer function. With the rapid development, more and more solutions have been made to overcome the anti-wall cancer effect of the paint, but the effects are not good.

It can be seen that there are still many shortcomings in the above-mentioned household items, which is not a good designer and needs to be improved.

In view of the above-mentioned conventional coatings, the inventors of the present invention cannot improve the defects caused by the wall cancer, but they have improved and innovated, and after years of painstaking research, they finally succeeded in research and development of the method for producing the porous hollow spheres. .

The object of the present invention is to provide a method for preparing a lacquer having porous hollow nanospheres, which comprises a method of neutralizing citric acid by a porous hollow nanosphere structure and eliminating the cement or brick by the acid-base neutralization principle. Alkaline calcium hydroxide, magnesium hydroxide and other substances produced by water vapor in the air.

A method for producing a paint having porous hollow nanospheres which achieves the above object, which comprises providing a nanometer calcium diphosphate as a central core body, and then adding ceria as a coating layer to the outer core layer of the central core, and adding a strong acid cation The resin is exchanged to make the inside of the coating layer hollow, and the coating layer produces minute pores, and the coating product with cerium oxide is added to the lacquer with citric acid. The manufacturing process comprises the following steps: Step 1: Measure 60g of ethanol , a sol of calcium diphosphate 30g, and tetraethoxy decane, adding an aqueous ammonia solution to make PH=10, stirring at 20 ° C for 6 hours to obtain a core-shell fine particle mixture; Step 2: obtaining a core-shell fine particle mixture Adding a strong acid cation exchange resin, stirring for 1 hour to make PH=4, removing the strong acid cation exchange resin by filtration, thereby obtaining a porous hollow cerium oxide nanosphere mixture Dispersing liquid; Step 3: Adding 23 g of the obtained porous hollow cerium oxide hollow sphere suspension, 65 g of ethanol, and hydrolyzing tetraethoxy decane with nitric acid as a matrix component to obtain a decanoic acid oligomer solution 10 g 2 g of a nonionic surfactant, stirred for 10 minutes, and then poured into a coating containing 0.5% to 2.5% of citric acid, and stirred for 3 hours, thereby obtaining a coating having porous hollow nanospheres.

Referring to FIG. 1 , a method for fabricating a porous hollow sphere provided by the present invention comprises providing a nanometer calcium diphosphate as a central core body, and then adding cerium oxide as a coating layer to the outer core layer of the central core. The strong acid cation exchange resin is added to make the inside of the coating layer hollow, and the coating layer produces minute pores, and the coating product with cerium oxide is added to the lacquer with citric acid.

Please refer to FIG. 1 , wherein the porous hollow cerium oxide hollow sphere mixed liquid is prepared as follows:

(a) measuring 60 g of ethanol, 30 g of sol of calcium diphosphate, and tetraethoxy decane, adding an aqueous ammonia solution to make PH = 10, and stirring at 20 ° C for 6 hours to obtain a core-shell fine particle mixture; wherein the diphosphate In the presence of calcium, the precursor of the cerium oxide is reacted at pH>8 to form cerium oxide, and the formed cerium oxide is coated on the calcium diphosphate fine particles.

(b) adding a core-shell microparticle mixture to a strongly acidic cation After changing the resin and stirring for 1 hour to make PH=4, the strong acid cation exchange resin is removed by filtration to obtain a porous hollow cerium oxide hollow sphere spheroidal liquid; wherein the core-shell microparticle mixture is exchanged with the strong acid cation The resin is mixed and contacted to dissolve the calcium diphosphate of the central core in the range of pH 2-8.

(c) 23 g of the obtained porous hollow cerium oxide hollow sphere mixture and 65 g of ethanol were added, and as a matrix component, tetraethoxy decane was hydrolyzed with nitric acid to obtain 10 g of a decanoic acid oligomer solution, and nonionic 2 g of the surfactant was stirred for 10 minutes, and then poured into a coating material containing 0.5% to 2.5% of citric acid, and stirred for 3 hours, thereby obtaining a coating having porous hollow nanospheres.

Therefore, the above-mentioned method for producing a porous hollow nanosphere provided by the present invention is further described as follows: First, the user uniformly coats the wall surface to be painted with the porous hollow naphthalene of the present invention. The painting of the rice sphere can be completed. Since the wall bread contains cement and bricks, it will produce alkaline calcium hydroxide, magnesium hydroxide and other chemical components when reacted by moisture in the air, due to the hollow nanoparticle of the present invention. The coating of the sphere is low in acidity, so it can neutralize the acid and alkali of chemical components such as calcium hydroxide and magnesium hydroxide to reduce or slow the occurrence of wall cancer.

The method for producing a paint having porous hollow nanospheres provided by the present invention has the following advantages through the above description:

(1) By mixing citric acid with a porous hollow nanosphere structure, the acidity and alkali neutralization principle is used to eliminate the alkalinity generated by water vapor in the cement or brick. Calcium hydroxide, magnesium hydroxide and other substances.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

In summary, this case is not only innovative in terms of space type, but also can enhance the above-mentioned multiple functions compared with the customary items. It should fully meet the statutory invention patent requirements of novelty and progressiveness, and apply for it according to law. This invention patent application, in order to invent invention, to the sense of virtue.

1 is a top perspective exploded view of a method for producing a paint having a porous hollow nanosphere according to the present invention;

Claims (1)

A method for preparing a paint having porous hollow nanospheres, comprising providing a nanometer calcium diphosphate as a central core body, then adding cerium oxide as a coating layer in a central core outer layer, adding a strong acid cation exchange resin to make a package The inside of the layer is hollow, and the coating layer generates minute pores, and the coating product with cerium oxide is added to the lacquer with citric acid. The manufacturing process comprises the following steps: Step 1: measuring 60 g of ethanol and calcium diphosphate 30 g of sol and tetraethoxy decane, adding an aqueous ammonia solution to make PH=10, stirring at 20 ° C for 6 hours to obtain a core-shell fine particle mixture; Step 2: adding a core-shell fine particle mixture to a strongly acidic cation exchange After the resin is stirred for 1 hour to make PH=4, the strong acid cation exchange resin is removed by filtration to obtain a porous hollow cerium oxide nanosphere hollow sphere mixed liquid; Step 3: adding the obtained porous hollow cerium oxide naphthalene 23 g of a hollow sphere-shaped mixed liquid, 65 g of ethanol, and hydrolyzed tetraethoxy decane with nitric acid as a matrix component to obtain a decanoic acid oligomer solution 10 g 2 g of a nonionic surfactant, stirred for 10 minutes, and then poured into a coating containing 0.5% to 2.5% of citric acid, and stirred for 3 hours, thereby obtaining a coating having porous hollow nanospheres.