阅读说明：本技术 一种抗灰镀膜玻璃、制备方法及应用 (Anti-dust coated glass, preparation method and application ) 是由 汤明娟 梁海潮 刘杰 于 2020-07-22 设计创作，主要内容包括：本发明公开了一种抗灰镀膜玻璃、制备方法及应用,方法包括；使用玻璃清洗机对玻璃的两个表面进行清洗,并测试玻璃的锡面和空气面；对清洗后的玻璃进行等离子体轰击,使玻璃的两个表面的接触角小于10°,使得玻璃表面具有强附着力；采用湿法喷涂方式在玻璃的空气面均匀喷涂疏水抗灰液,形成致密的疏水抗灰膜；将玻璃送入固化炉中进行加热；将玻璃转入冷却炉中进行冷却,完成抗灰玻璃镀膜的制备。本发明根据荷叶疏水效应的原理,通过在玻璃表面喷涂疏水抗灰液,改变玻璃表面结构,形成致密的疏水抗灰膜层,实现玻璃的持久抗灰清洁效果。并且,本发明先进行等离子轰击,然后采用喷涂技术进行喷涂,抗灰效果更好,成本更低,效率更高。(The invention discloses an anti-dust coated glass, a preparation method and application, wherein the method comprises the following steps of; cleaning two surfaces of the glass by using a glass cleaning machine, and testing a tin surface and an air surface of the glass; carrying out plasma bombardment on the cleaned glass to ensure that the contact angle of the two surfaces of the glass is less than 10 degrees, so that the surface of the glass has strong adhesive force; uniformly spraying hydrophobic anti-dust liquid on the air surface of the glass by adopting a wet spraying mode to form a compact hydrophobic anti-dust film; feeding the glass into a curing furnace for heating; and (5) transferring the glass into a cooling furnace for cooling to finish the preparation of the anti-dust glass coating. According to the principle of lotus leaf hydrophobic effect, the hydrophobic anti-dust liquid is sprayed on the surface of the glass, so that the surface structure of the glass is changed, a compact hydrophobic anti-dust film layer is formed, and the lasting anti-dust cleaning effect of the glass is realized. In addition, the plasma bombardment is firstly carried out, and then the spraying technology is adopted for spraying, so that the dust resistance effect is better, the cost is lower, and the efficiency is higher.)

1. A preparation method of anti-dust coated glass is characterized by comprising the following steps of;

cleaning two surfaces of the glass by using a glass cleaning machine, and testing a tin surface and an air surface of the glass;

carrying out plasma bombardment on the cleaned glass to ensure that the contact angle of the two surfaces of the glass is less than 10 degrees, so that the surface of the glass has strong adhesive force;

uniformly spraying hydrophobic anti-dust liquid on the air surface of the glass by adopting a wet spraying mode to form a compact hydrophobic anti-dust film;

feeding the glass into a curing furnace for heating;

and (5) transferring the glass into a cooling furnace for cooling to finish the preparation of the anti-dust glass coating.

2. The method for preparing the anti-dust coated glass according to claim 1, wherein in the spraying process, the flow rate of a spray head of a spraying machine is 16-40 g/30s, the atomization pressure is 350-400 kPa, and the belt speed is 1.5-2.5 m/min.

3. The method for preparing the anti-dust coated glass according to claim 1, wherein the thickness of the hydrophobic anti-dust film is 50-1000 nm.

4. The method for preparing the anti-dust coated glass according to claim 1, wherein the number of times of the plasma bombardment is 2-3.

5. The method for preparing the anti-dust coated glass according to claim 1, wherein the hydrophobic anti-dust liquid comprises 40-65% of organic silicon monomer, 10-20% of first silane coupling agent, 5-15% of second silane coupling agent, 0.1-2% of organic tin catalyst and 5-20% of cross-linking agent by mass percentage, wherein the first silane coupling agent is at least one selected from gamma-aminopropyltriethoxysilane and N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane; the second silane coupling agent is gamma-glycidoxypropyltrimethoxysilane.

6. The method for preparing the anti-dust coated glass according to claim 1, wherein the cooling time is 3-10 min.

7. The method for preparing the anti-dust coated glass according to claim 1, wherein the heating temperature is 300-320 ℃.

8. The method for preparing the glass with an anti-dust coated film according to claim 7, wherein the heating time is 15-25 minutes.

9. An anti-dust coated glass, characterized by being prepared by the preparation method according to any one of claims 1 to 8.

10. The use of the glass according to claim 9, wherein the glass is used for glass curtain walls, glass roofs of sunlight rooms, glass for building interiors, glass for flower greenhouses and glass for automobiles.

Technical Field

The invention relates to the technical field of coated glass, in particular to anti-dust coated glass, a preparation method and application.

Background

In the glass cleaning technology, the more mature production process is hydrophilic TiO₂The film series and the related preparation techniques are as follows: CN01110064.8 describes the preparation of TiO by a sol-gel process₂The self-cleaning coated glass has the coating heat treatment temperature of 450-550 ℃, the heat treatment is carried out for about 2 hours, the heat treatment is carried out for a longer time at a high temperature, the production efficiency is low, the cost is high, and the practical production is not facilitated; CN00115361.7 describes the preparation of TiO by magnetron sputtering₂The implementation and production process of the magnetron sputtering of the self-cleaning coated glass is complex and has high cost; CN200910097872.3 describes a spraying device equipped with a liquid storage tank and a spray gun at the outlet of an annealing kiln of a float glass production line, and nano TiO is sprayed on the surface of glass by using the float on-line spraying technology₂A method for preparing self-cleaning coated glass by using a coating. However, hydrophilic TiO₂The self-cleaning glass is mainly photo-induced nano TiO₂Film, which requires UV irradiation, due to TiO₂The surface of the glass is seriously stained with dust under the electrostatic action of the surface, the cleaning effect of the glass is ineffective after being covered by dust, and the cleaning durability is weak, so whether the cleaning effect of the glass is durable and effective or not is very important.

Disclosure of Invention

The invention aims to provide anti-dust coated glass, a preparation method and application, and aims to solve the problem that the existing anti-dust coated glass is poor in anti-dust cleaning effect.

The embodiment of the invention provides a preparation method of anti-dust coated glass, which comprises the following steps of;

cleaning two surfaces of the glass by using a glass cleaning machine, and testing a tin surface and an air surface of the glass;

carrying out plasma bombardment on the cleaned glass to ensure that the contact angle of the two surfaces of the glass is less than 10 degrees, so that the surface of the glass has strong adhesive force;

uniformly spraying hydrophobic anti-dust liquid on the air surface of the glass by adopting a wet spraying mode to form a compact hydrophobic anti-dust film;

feeding the glass into a curing furnace for heating;

and (5) transferring the glass into a cooling furnace for cooling to finish the preparation of the anti-dust glass coating.

Preferably, in the spraying process, the flow rate of a spray head of the spraying machine is 16-40 g/30s, the atomization pressure is 350-400 kPa, and the belt running speed is 1.5-2.5 m/min.

Preferably, the thickness of the hydrophobic anti-dust film is 50-1000 nm.

Preferably, the number of times of plasma bombardment is 2-3.

Preferably, the hydrophobic anti-ash liquid comprises 40-65% of organosilicon monomer, 10-20% of first silane coupling agent, 5-15% of second silane coupling agent, 0.1-2% of organic tin catalyst and 5-20% of cross-linking agent by mass percentage, wherein the first silane coupling agent is at least one selected from gamma-aminopropyltriethoxysilane and N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane; the second silane coupling agent is gamma-glycidoxypropyltrimethoxysilane.

Preferably, the cooling time is 3-10 min.

Preferably, the heating temperature is 300-320 ℃.

Preferably, the heating time is 15 to 25 minutes.

The embodiment of the invention provides anti-dust coated glass which is prepared by adopting the preparation method.

The embodiment of the invention provides application of the anti-dust coated glass, wherein the anti-dust coated glass is applied to glass curtain walls, glass roofs of sunlight rooms, glass installed in buildings, flower greenhouse glass and automobile glass.

The embodiment of the invention provides anti-dust coated glass, a preparation method and application, wherein the method comprises the following steps of; cleaning two surfaces of the glass by using a glass cleaning machine, and testing a tin surface and an air surface of the glass; carrying out plasma bombardment on the cleaned glass to ensure that the contact angle of the two surfaces of the glass is less than 10 degrees, so that the surface of the glass has strong adhesive force; uniformly spraying hydrophobic anti-dust liquid on the air surface of the glass by adopting a wet spraying mode to form a compact hydrophobic anti-dust film; feeding the glass into a curing furnace for heating; and (5) transferring the glass into a cooling furnace for cooling to finish the preparation of the anti-dust glass coating. According to the embodiment of the invention, according to the principle of the lotus leaf hydrophobic effect, the hydrophobic anti-dust liquid is sprayed on the surface of the glass, so that the surface structure of the glass is changed, a compact hydrophobic anti-dust film layer is formed, and the lasting anti-dust cleaning effect of the glass is realized. In addition, the embodiment of the invention firstly carries out plasma bombardment and then adopts the spraying technology for spraying, so that the invention has better anti-dust effect, lower cost and higher efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic flow chart of a method for preparing anti-ash coated glass according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1, an embodiment of the present invention provides a method for preparing an anti-ash coated glass, including;

s101, cleaning two surfaces of glass by using a glass cleaning machine, and testing a tin surface and an air surface of the glass;

s102, carrying out plasma bombardment on the cleaned glass to enable a contact angle between two surfaces of the glass to be smaller than 10 degrees, so that the surface of the glass has strong adhesive force;

s103, uniformly spraying hydrophobic anti-dust liquid on the air surface of the glass in a wet spraying mode to form a compact hydrophobic anti-dust film;

s104, feeding the glass into a curing furnace for heating;

and S105, transferring the glass into a cooling furnace for cooling to finish the preparation of the anti-dust glass coating.

According to the embodiment of the invention, according to the principle of lotus leaf hydrophobic effect, the anti-dust film layer is sprayed on the surface of glass, the surface structure of the glass is changed, and the compact anti-dust film layer is formed, so that the surface of the glass is quite compact and flat, and has high hydrophobicity, thus the lotus leaf-like hydrophobic effect is achieved, water cannot be completely adhered to the glass, meanwhile, the surface tension of the water generates a water drop-shaped phenomenon, water drops can naturally slide to take away dust, the dust cannot be accumulated on the surface of the glass, and compared with the water stain deposition of common glass, the long-term anti-dust cleaning effect shows obvious difference, and the durable anti-dust cleaning effect of the glass is realized.

By adopting the dust-resistant coated glass provided by the embodiment of the invention, dust is not easy to adhere to the surface of the glass; if there is dirt stuck on the surface due to static electricity, the ideal cleaning effect can be achieved by flushing with water, the glass is always kept clean as new, and the work of cleaning and wiping the glass repeatedly at regular intervals, which is time-consuming and labor-consuming, is avoided. In addition, the production process disclosed by the embodiment of the invention does not need long-time heat treatment, is simple in production process flow, uniform in film layer prepared by spraying, excellent in leveling effect, high in production efficiency and capable of realizing continuous large-scale production.

In the step S101, the cleaning solution of the glass cleaning machine may be deionized water, or other organic or inorganic solution for cleaning glass, and the step is to primarily clean glass, so that the tin surface and the air surface of the glass can achieve a better cleaning effect.

In the above step S102, the glass is subjected to plasma bombardment. In the plasma bombardment process, the bombardment process parameters are as follows: the plasma head may move at a starting point of 1.1m, an end point of 2.5m, and a moving speed of 3 m/s. Of course, the above process parameters can be adjusted left and right, and a better bombardment effect can be achieved. The purpose of plasma bombardment is to make the contact angle between the two surfaces of the glass less than 10 degrees, so that the glass surface has strong adhesion, even if the glass surface is cleaner, which is beneficial to the durability of the coating.

Specifically, the number of times of plasma bombardment is 2-3. Namely, the embodiment of the invention can carry out bombardment for a plurality of times so as to enable the surface of the glass to be cleaner, and a period of time can be arranged between adjacent bombardment operations so as to achieve better bombardment effect.

In step S103, the glass is sprayed on the air surface by a wet spraying method, and the hydrophobic anti-dust liquid can be uniformly attached to the air surface of the glass by the wet spraying method, so that a dense hydrophobic anti-dust film can be formed.

Specifically, in the spraying process, the flow of a spray head of the spraying machine is 16-40 g/30s, the atomization pressure is 350-400 kPa, and the belt speed is 1.5-2.5 m/min. Under the spraying process parameters, the coating is more uniform and compact, and the spraying efficiency is higher.

Specifically, the thickness of the hydrophobic anti-dust film is 50-1000 nm. More preferably, the thickness of the film layer of the hydrophobic anti-dust film is 450-650 nm, and the anti-dust effect of the hydrophobic anti-dust film is optimal under the thickness.

Specifically, the hydrophobic anti-ash liquid comprises 40-65% of organic silicon monomer, 10-20% of first silane coupling agent, 5-15% of second silane coupling agent, 0.1-2% of organic tin catalyst and 5-20% of cross-linking agent by mass percentage, wherein the first silane coupling agent is at least one selected from gamma-aminopropyltriethoxysilane and N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane; the second silane coupling agent is gamma-glycidoxypropyltrimethoxysilane. The hydrophobic anti-dust liquid can react with active hydroxyl functional groups on the surface of glass to form chemical covalent bonds, so that the formed hydrophobic coating realizes strong adhesion, better ultraviolet irradiation resistance and heat resistance stability on the surface of the glass, and the surface energy of the organic silicon material is low, so that the hydrophobic anti-dust liquid has better hydrophobic and self-cleaning effects, thereby not only endowing the easy-to-clean glass with excellent weather resistance, meeting the outdoor long-term use requirement, but also endowing the glass with remarkable hydrophobic easy-to-clean effect.

In the step S104, the glass is sent into a curing furnace for heating, so as to quickly form the hydrophobic anti-ash film, the heating temperature can be 300 to 320 ℃, the hydrophobic anti-ash film has the best anti-ash effect at the temperature, and the heating time is 15 to 25 minutes at the temperature, namely, the hydrophobic anti-ash film is formed by heating at 300 to 320 ℃ for 15 to 25 minutes, and the heating efficiency is high.

In the step S105, the glass is transferred to a cooling furnace to be cooled, so that the preparation of the anti-dust glass coating film is completed. Specifically, the cooling time is 3-10 min, so that cooling can be completed more quickly, and the preparation efficiency is improved.

The embodiment of the invention provides anti-dust coated glass which is prepared by adopting the preparation method.

The embodiment of the invention provides application of the anti-dust coated glass, and the anti-dust coated glass is applied to glass curtain walls, glass roofs of sunlight rooms, glass for building interiors, flower greenhouse glass and automobile glass. The dust-resistant coated glass provided by the embodiment of the invention is wide in application, dust or sewage is difficult to attach to the surface of the glass or is easy to wash away by rainwater, and the surface of the glass is very easy to keep clean, namely: the glass is less prone to dust, can be washed by rainwater to be clean and dustless for a long time, and is strong in cleaning durability.