阅读说明：本技术 一种环保安全的蒙砂玻璃制备方法 (Preparation method of environment-friendly and safe frosted glass ) 是由 沈辉 沈银根 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种环保安全的蒙砂玻璃制备方法,包括以下步骤：对玻璃进行裁片、磨边和清洗后,将玻璃放入特制的蒙砂液中,通入气体,反应6-10min,然后再经过清洗、干燥步骤,即可。本发明的蒙砂过程中采用的蒙砂液,包括以下成分：氟化石墨烯、强碱、硫酸钾、分散剂、分散助剂和水。由于该蒙砂液中含有强碱,整个体系为碱性,故不会产生氢氟酸,从而对人体造成伤害,而采用氟化石墨烯替代常用的氟化盐,可以有效提升蒙砂加工的效果；本发明的蒙砂玻璃制备方法,不会产生对人体危害很大的氢氟酸,相比于传统方法,更加环保、安全。(The invention discloses a preparation method of environment-friendly and safe frosted glass, which comprises the following steps: cutting, edging and cleaning glass, putting the glass into a special frosting solution, introducing gas, reacting for 6-10min, and then cleaning and drying. The frosting liquid adopted in the frosting process comprises the following components: fluorinated graphene, strong base, potassium sulfate, a dispersing agent, a dispersing aid and water. The frosting liquid contains strong base, so that the whole system is alkaline, hydrofluoric acid cannot be generated, and the damage to a human body is avoided; the preparation method of the frosted glass does not generate hydrofluoric acid which is harmful to human bodies greatly, and is more environment-friendly and safer compared with the traditional method.)

1. The preparation method of the environment-friendly and safe frosted glass is characterized by comprising the following steps:

A. cutting: cutting a glass sheet from a glass raw sheet according to the specification;

B. edging: the sharp edge on the glass sheet is polished to form a chamfer on the glass sheet;

C. cleaning: washing the glass sheet subjected to the edge grinding step by using tap water, soaking the glass sheet in an acetone mixed solution, washing the glass sheet by using deionized water, and finally drying the glass sheet in an oven at the temperature of 60-80 ℃;

D. sanding: putting the glass into the frosting liquid, introducing 100-120LPM gas through a bubbling device, and reacting for 6-10 min;

E. cleaning and drying: and (3) cleaning the glass sheet subjected to the silk-screen printing step by using deionized water, and then drying in an oven, wherein the water content is controlled to be 2-4%.

2. The method for preparing environment-friendly and safe frosted glass according to claim 1, wherein in the step D, the frosting solution comprises the following components: fluorinated graphene, strong base, potassium sulfate, a dispersing agent, a dispersing aid and water.

3. The method for preparing environment-friendly and safe frosted glass according to claim 1, wherein in the step D, the frosting solution consists of the following components in percentage by weight: 0.3-0.8% of fluorinated graphene, 1-3% of strong base, 2-4% of potassium sulfate, 3-6% of a dispersing agent, 2-5% of a dispersing auxiliary agent and the balance of water.

4. The method for preparing environmentally friendly and safe frosted glass according to claim 2 or 3, wherein the fluorine content in the fluorinated graphene is 8-14% (by weight).

5. The method for producing environmentally safe frosted glass according to claim 2 or 3, wherein said strong base is sodium hydroxide or potassium hydroxide.

6. The method for producing environmentally safe frosted glass according to claim 2 or 3, wherein said dispersant is activated calcium carbonate.

7. The method for producing environmentally safe frosted glass according to claim 2 or 3, wherein said dispersing aid is glycerin.

8. The method for preparing environment-friendly and safe frosted glass according to claim 1, wherein in the step E, the drying temperature is 120-130 ℃ and the time is 2-4 min.

Technical Field

The invention relates to the technical field of glass preparation, in particular to a preparation method of environment-friendly and safe frosted glass.

Background

Because the glass has the advantages of high strength, good acid and alkali corrosion resistance, good aging resistance and the like, the glass is widely applied to the daily life of people. However, glass has a high light transmittance, and may cause "light pollution" to a human body, and further, some cosmetics or liquids in wine bottles are likely to undergo chemical reactions by light irradiation to deteriorate, thereby shortening the shelf life. The glass frosting is a method for increasing the roughness of the surface of the glass by chemical corrosion or surface etching, thereby reducing the light transmittance. The chemical frosted glass is essentially surface acid-etched glass, HF is used for chemically etching the glass surface, insoluble matters which are not removed during etching are adhered to the glass surface, and along with the continuation of reaction time, the reactants are piled into granular crystals and firmly adhered to the surface, so that the further reaction of acid etching is hindered, namely non-uniform etching is realized, and a semitransparent rough surface is obtained, and the rough surface generates scattering to incident light, is in a semitransparent state and has a hazy feeling.

Most frosted glass is etched to form a frosted layer on the surface of the glass. And the frosted glass is processed on the surface of the glass by using water-based frosting ink, and the water-based frosting ink is solidified on the surface of the glass by using spraying and baking processes. The process is complex and the requirement for spraying equipment is high. Particularly, the main component of the frosting ink or frosting paste is fluoride or hydrofluoric acid, and in the frosting process, the serious injury and even death of human bodies can be caused by careless contact of skin with hydrofluoric acid liquid, so that the preparation method of the frosting glass with environmental protection and safety needs to be researched.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides an environment-friendly and safe frosted glass preparation method.

The technical scheme of the invention is as follows:

the preparation method of the environment-friendly and safe frosted glass comprises the following steps:

A. cutting: cutting a glass sheet from a glass raw sheet according to the specification;

B. edging: the sharp edge on the glass sheet is polished to form a chamfer on the glass sheet;

C. cleaning: washing the glass sheet subjected to the edge grinding step by using tap water, soaking the glass sheet in an acetone mixed solution, washing the glass sheet by using deionized water, and finally drying the glass sheet in an oven at the temperature of 60-80 ℃;

D. sanding: putting the glass into the frosting liquid, introducing 100-120LPM gas through a bubbling device, and reacting for 6-10 min;

E. cleaning and drying: and (3) cleaning the glass sheet subjected to the silk-screen printing step by using deionized water, and then drying in an oven, wherein the water content is controlled to be 2-4%.

Preferably, in the step D, the frosting solution comprises the following components: fluorinated graphene, strong base, potassium sulfate, a dispersing agent, a dispersing aid and water.

Preferably, in the step D, the frosting solution is composed of the following components by weight percent: 0.3-0.8% of fluorinated graphene, 1-3% of strong base, 2-4% of potassium sulfate, 3-6% of a dispersing agent, 2-5% of a dispersing auxiliary agent and the balance of water.

Preferably, the fluorine content of the fluorinated graphene is 8-14% (weight ratio).

Preferably, the strong base is sodium hydroxide or potassium hydroxide.

Preferably, the dispersant is activated calcium carbonate.

Preferably, the dispersing aid is glycerol.

Preferably, in the step E, the drying temperature is 120-130 ℃, and the time is 2-4 min.

The invention has the advantages that: the preparation method of the environment-friendly and safe frosted glass comprises the steps of cutting, edging and cleaning the glass, putting the glass into a special frosting liquid, introducing gas, reacting for 6-10min, and then cleaning and drying. The frosting liquid adopted in the frosting process comprises the following components: fluorinated graphene, strong base, potassium sulfate, a dispersing agent, a dispersing aid and water. The frosting liquid contains strong base, so that the whole system is alkaline, hydrofluoric acid cannot be generated, and the damage to a human body is avoided; the preparation method of the frosted glass does not generate hydrofluoric acid which is harmful to human bodies greatly, and is more environment-friendly and safer compared with the traditional method.

Detailed Description