WO2014032202A1

WO2014032202A1 - Anti-moss self-cleaning protective agent and preparation method therefor

Info

Publication number: WO2014032202A1
Application number: PCT/CN2012/001147
Authority: WO
Inventors: 王兆樑
Original assignee: Wang Zhaoliang
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2014-03-06

Abstract

Disclosed are an anti-moss self-cleaning protective agent and a preparation method therefor. The anti-moss self-cleaning protective agent comprises: 5-20 weight parts of a nanomolecular mixture of an organosilicon silane and a siloxane having different molecular weights, 5-8 weight parts of an anatase and rutile titanium dioxide mixture, 10-20 weight parts of ethanol, and 50-80 weight parts of water. The self-cleaning protective agent has excellent hydrophobic, bactericidal and self-cleaning properties.

Description

Anti-mosa self-cleaning protective agent and preparation method thereof

Technical field

The invention relates to a moss protection agent for a building base, in particular to an anti-mosa self-cleaning protective agent and a preparation method thereof.

Background technique

The base surface of the building in modern gardens, especially the pavement, roof and wall surface, is susceptible to the growth of filamentous algae and other moss on the surface of the substrate due to environmental influences, causing inconvenience to people's lives. At the same time, breeding various molds will erode the building. The base surface is harmful to the environment.

Summary of the invention

The object of the present invention is to provide a molybdenum self-cleaning protective agent capable of preventing the surface of the building, especially the surface of the building, especially the road surface, the roof surface, the wall surface, etc., and the self-cleaning protection effect. And a preparation method thereof to solve the problem that the moss on the base of the existing building is easy to grow, such as filamentous algae, which causes inconvenience to people's life, and erodes the base of the building and hinders the appearance of the environment.

The technical solution of the present invention is as follows:

An anti-mosa self-cleaning protective agent made of raw materials comprising the following parts by weight:

5 - 20 different sizes of silicone silicon germanium and siloxane nano 'molecular mixtures,

5-8 parts of titanium dioxide mixture,

10-20 parts of ethanol,

50 - 80 parts of water,

Wherein the mixture of the organosilicon germanium and the siloxane nanomolecule has a nanometer molecular particle diameter of less than 2 nm, the mixture includes silane and siloxane, and the silane is a nanometer small molecule silicon germanium, and the siloxane includes different sizes. The siloxane molecules, the number of repeating units in the siloxane molecules is 20-60; the titanium dioxide particles in the titanium dioxide mixture have a particle size of less than 5 nm, and are anatase and rutile Type titanium dioxide nanoparticle mixture.

The silicone silicon germanium and siloxane nanomolecular mixture may be commercially available silicone.

Preferably, an emulsifier is further included, and the emulsifier may be any conventional emulsifier which can be used for silicone emulsification, such as a fluorine-containing emulsifier, a TWEEN series emulsifier, a SPAN series emulsifier, and a stearic acid emulsifier. One or more of them.

A preparation method of a moss-proof self-cleaning protection agent, comprising the following steps:

(1) mixing 5-8 parts by weight of the titanium dioxide mixture with 40-60 parts by weight of water to obtain a titanium dioxide solution;

5-20 parts by weight of a mixture of silicone silicon germanium and siloxane nanomolecules of different sizes are mixed with an emulsifier, 10-20 parts by weight of ethanol, 10-20 parts by weight of water, and stirred at a high speed to obtain a silicone emulsion; wherein the titanium dioxide solution and The preparation of the silicone emulsion may be carried out in any order, and the titanium dioxide solution may be prepared first to prepare the silicone emulsion, or the silicone emulsion may be prepared first to prepare the titanium dioxide solution, or may be simultaneously performed;

(2) The titanium dioxide solution obtained in the step (1) is mixed with the silicone emulsion, and stirred uniformly to obtain an anti-green moss self-cleaning protective agent.

Compared with the prior art, the beneficial effects of the present invention are as follows:

First, the silicone nano-region formed on the base surface coated with the anti-moss self-cleaning protective agent of the invention forms a strong hydrophobicity on the base surface, greatly reduces the adhesion of the filamentous algae bacteria, and does not give a living space for the moss;

Secondly, the protective agent of the invention adds titanium dioxide photocatalytic nanoparticles, and has excellent sterilization effect. The titanium dioxide nanoparticles are capable of being strongly decomposed by filamentous algae by ultraviolet radiation, and can effectively inhibit the growth of moss;

Third, the nanophotocatalytic mechanism of titanium dioxide is effectively combined with the hydrophobic mechanism of the organosilicon nanomolecules, and acts on the base surface to cause the pollutants to be decomposed in time and quickly washed away, thereby ensuring long-term cleansing of the base surface and having excellent self-cleaning properties;

Fourth, the organic nano-molecule effectively penetrates into the capillary wall of the substrate to form a unidirectional gas permeability, and the service life of the moss-free self-cleaning protective agent is greatly improved; Fifth, the specific properties of silicone nanomolecules can also effectively protect the substrate from weathering, chemical corrosion of acid and alkali salts, and prolong the service life of the substrate.

Sixth, the protective agent combines high-quality organic silicon nanomaterials and nano photocatalytic technology, and has stable chemical properties. It is an ideal environmental protection and self-cleaning protection agent, and belongs to green environmental protection technology.

Of course, implementing any of the products of the present invention does not necessarily require all of the advantages described above to be achieved at the same time.

detailed description

The invention is further illustrated below in conjunction with specific embodiments. It is to be understood that the examples are merely illustrative of the invention and are not intended to limit the scope of the invention. Improvements and modifications made by the skilled person in accordance with the present invention in practical applications are still within the scope of the present invention.

The invention provides a molybdenum self-cleaning protection agent capable of preventing the surface of the building, especially the surface of the building, especially the road surface, the roof surface, the wall surface, and the like, and capable of self-cleaning protection. It can effectively extend the service life of the building and make the building look beautiful and bright.

The invention is mainly applied to the anti-moisture self-cleaning protection of sandstone, marble, granite, artificial stone, brick, ceramic clay, cement base surface, and raw materials such as logs and bamboo.

Example 1

The anti-mosa self-cleaning protective agent of the present embodiment is made of a raw material comprising the following parts by weight:

20 different sizes of silicone silane and siloxane nano-molecular mixture,

8 parts of titanium dioxide mixture,

20 parts of ethanol,

80 parts of water,

Wherein the mixture of the organosilane silane and the siloxane nano-molecular material has a nanometer molecular particle diameter of less than 2 nm, the mixture includes silane and siloxane, the silicon germanium is a nano-small molecular silane, and the siloxane comprises different sizes. A siloxane molecule having a number of repeating units of from 20 to 60 in the siloxane molecule; wherein the titanium dioxide particles in the titanium dioxide mixture have a particle size of less than 5 nm and are an anatase-type and rutile-type titanium dioxide nanoparticle mixture. In addition, the anti-moss self-cleaning protective agent further includes a small amount of an emulsifier. In this embodiment, the emulsifier is TWEEN series emulsifier Tween 20.

The preparation method of the anti-moss self-cleaning protective agent of the embodiment comprises the following steps:

(1) mixing 8 parts by weight of a titanium dioxide mixture with 60 parts by weight of water to obtain a titanium dioxide solution;

20 parts by weight of the silicone nano-molecular mixture of different sizes and the emulsifier Tween 20, 20 parts by weight of ethanol, 20 parts by weight of water are mixed, and the silicone emulsion is obtained by high-speed stirring; the amount of the emulsifier is commonly used.

The anti-mosa self-cleaning protective agent prepared in the present embodiment is sprayed on the multi-void base surface of cement, brick surface, ceramic clay and various kinds of stone materials, and the moss-proof test is compared with the base surface not coated with the protective agent, and the result is found. The base surface of the anti-mosa self-cleaning protective agent prepared by spraying in this embodiment has no growth of moss in various environments suitable for growing moss, and the anti-mosa performance is very obvious, and the protective agent has good durability and can effectively extend the use of the substrate. life.

Example 2

5 different sizes of silicone silicon germanium and siloxane nano-molecular mixture,

5 parts of titanium dioxide mixture,

10 parts of ethanol,

50 servings of water,

Wherein the nano-silicone particle size of the mixture of the organosilicon germanium and the siloxane nano-molecular particles is less than 2 nm, the mixture includes silicon germanium and silicon germanium, the silane is a nano-small molecular silicon germanium, and the silicon germanium includes a size. Different siloxane molecules, the number of repeating units in the siloxane molecules is 20-60; the titanium dioxide particles in the titanium dioxide mixture have a particle size of less than 5 nm, and are an anatase-type and rutile-type titanium dioxide nanoparticle mixture. In addition, the anti-moss self-cleaning protective agent further includes a small amount of an emulsifier. In this embodiment, the emulsifier is Abil EM90o of Evonik Degussa

The preparation method of the anti-mosa self-cleaning protective agent of the embodiment includes the following steps -

(1) mixing 5 parts by weight of a titanium dioxide mixture with 40 parts by weight of water to obtain a titanium dioxide solution;

5 parts by weight of a mixture of silicone silicon germanium and siloxane nanomolecules of different sizes are mixed with an emulsifier Abil EM90, 10 parts by weight of ethanol, 10 parts by weight of water, and stirred at a high speed to obtain a silicone emulsion; the amount of the emulsifier is a usual amount.

The anti-mosquito protection agent prepared in the embodiment is sprayed on the multi-void base surface of the cement brick surface, the ceramic clay and various stone materials, and simultaneously with the cement brick surface, the ceramic clay and the various stone base surfaces which are not sprayed with the protective agent. In the anti-mosa test, it was found that the multi-voided base surface of the cement brick surface, ceramic clay and various stone materials sprayed with the anti-moss protection agent prepared in the present example did not grow moss under the environment of various easy-to-growth moss, and the moss resistance performance was observed. It is very obvious that the protective agent has good durability and can effectively extend the service life of the substrate.

The above are only the preferred embodiments of the present invention, and all the embodiments or modifications within the scope of the present invention are within the scope of the present invention.

Claims

Claim

An anti-mosa self-cleaning protective agent, which is prepared from a raw material comprising the following parts by weight: 5 - 20 parts of a mixture of silicone silicon germanium and siloxane nano molecules having different sizes,

5-8 parts of titanium dioxide mixture,

10-20 parts of ethanol,

50-80 parts of water,

Wherein the nano-silicone particle size of the mixture of silicone silicon germanium and siloxane nano-molecules is less than 2 nm, the mixture includes silicon germanium and silicon germanium, the silane is nanometer small molecular silicon germanium, and the siloxane includes size Different siloxane molecules, the number of repeating units in the siloxane molecules is 20-60; the titanium dioxide particles in the titanium dioxide mixture have a particle size of less than 5 nm, and are an anatase-type and rutile-type titanium dioxide nanoparticle mixture.

2. The anti-mosa self-cleaning protectant according to claim 1, further comprising an emulsifier.

A method for preparing a moss-proof self-cleaning protective agent, comprising the steps of:

5-20 parts by weight of a mixture of silicone silane and siloxane nano-molecules of different sizes are mixed with an emulsifier, 10-20 parts by weight of ethanol, 10-20 parts by weight of water, and stirred at a high speed to obtain a silicone emulsion;