Application of an emulsion-type silicone release agent in the field of glass coating technology

Abstract

The present application relates to the application of an emulsion-type silicone release agent in the field of glass coating technology, belonging to the field of glass coating technology. The release agent can also be used in the field of glass coating technology after being diluted with water, and the release agent can be sprayed on the surface of the glass after being diluted with water, which can play a certain protective role and improve the strength and physical and chemical properties of the glass surface; it is important that the release agent does not need to rely on organic solvents when used as a coating agent or coating solution, and can be used by diluting it with water, without causing pollution to the environment.

Description

Technical Field

[0001] The present application relates to the technical field of glass coating, and in particular to the application of an emulsion-type silicone release agent in the technical field of glass coating. Background Art

[0002] In recent years, glass coating technology has been widely used in the fields of industry and science and technology. However, there are some problems with the current glass coating method, especially for pharmaceutical glass, which requires higher surface properties, such as strength, acid resistance, alkalinity, etc. It is also necessary to ensure the chemical stability and biocompatibility of the glass surface to ensure the purity and quality of the medicine, as well as the good adaptability between medical devices and biological tissues. Most of the existing coating solutions or coating agents contain components such as dimethylsiloxane and dimethyl silicone oil, but dimethylsiloxane and dimethyl silicone oil are insoluble in water and soluble in organic solvents such as benzene. Benzene is considered to be a carcinogen, which pollutes the environment and has potential risks to health. Therefore, using organic solvents to dilute silicone oil to meet the requirements of spraying is bound to cause environmental pollution.

[0003] At present, there are no coating agents or coating solutions that can be used to dilute silicone oil with water and meet the coating requirements in China. These coating agents or coating solutions are diluted with water for coating tests. In the test, the dispersion is uneven, resulting in uneven thickness of the coating, and the strength and adsorption of some coatings are not ideal. Using too high a concentration of pure silicone oil will also lead to uneven coating, and incomplete heating and decomposition will lead to poor coating strength, and even easy to fall off during use. In addition, the plasma coating method can achieve better coating uniformity, but due to the complex operation, only one glass bottle can be processed at a time, and it takes a long time, which cannot meet the needs of mass production, so it has certain limitations. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the embodiments of the present application includes providing an application of an emulsion-type silicone release agent in the field of glass coating technology. The release agent can be used as a glass coating agent, and the release agent can improve the strength and physical and chemical properties of glass.

[0005] The embodiment of the present application provides an application of an emulsion-type silicone release agent in the field of glass coating technology.

[0006] The release agent can also be used in the field of glass coating technology after being diluted with water, and spraying the release agent on the outer surface or inner surface of the glass after being diluted with water can play a certain protective role and can also improve the strength and physical and chemical properties of the glass surface; what is important is that the release agent does not need to rely on organic solvents when used as a coating agent or a coating solution, and only needs to be diluted with water, and will not cause pollution to the environment.

[0007] In some embodiments of the present application, the release agent is used in the field of glass protective film technology.

[0008] In some embodiments of the present application, the release agent is used in the technical field of protective films for pharmaceutical glass containers.

[0009] In some embodiments of the present application, the release agent is used in the technical field of protective films for medicinal glass bottles.

[0010] In some embodiments of the present application, the model of the release agent is KM-9782. The release agent is purchased from Xinyue Organic Silicone International Trading (Shanghai) Co., Ltd.

[0011] In some embodiments of the present application, the method of using the release agent as a coating material for a pharmaceutical glass container includes: spraying the release agent solution on the inner surface of the pre-treated pharmaceutical glass container for the first time, then drying and spraying for the second time in sequence, and then heating and curing the pharmaceutical glass container after the second spraying.

[0012] In some embodiments of the present application, the preparation of the release agent solution includes: diluting the release agent with water to a volume concentration of 2-5%. Within this volume concentration range, the concentration of the release agent solution is appropriate, and when the release agent solution of this concentration is used for coating, the thickness of the film formed on the inner wall of the glass container is moderate, which is conducive to obtaining a coating layer with strong performance and stability.

[0013] In some embodiments of the present application, the pretreatment includes: washing and drying the pharmaceutical glass container; and / or the spraying includes: atomizing the diluted release agent solution at 0.2-0.5 MPa to obtain an atomized liquid, and then spraying the atomized liquid into the pharmaceutical glass container using a pressure nozzle device to cover the inner wall with a thin film. The atomized liquid can be better sprayed into the pharmaceutical glass container through the nozzle device under this pressure range.

[0014] In some embodiments of the present application, the drying conditions include: a drying temperature of 100-120°C and a drying time of 5-15min; and / or, the conditions for the heating curing treatment include: a heating temperature of 340-450°C and a heating time of 3-15min. Within this drying temperature and time range, the release agent solution sprayed on the inside of the glass container can be quickly cured into a film. In this heating temperature range, the release agent can be evenly distributed and fully cured on the glass surface, and the release agent can be quickly volatilized to form a uniform film, and a faster curing process can be achieved within the above heating time range, and the film can also have good adhesion and stability. By controlling the heating temperature and heating time within the above range, the cross-linking reaction between the release agent molecules can be promoted and the degree of chemical cross-linking of the film can be enhanced. This will improve the strength and wear resistance of the film, making it more durable and helping to protect the glass surface from scratches and chemical corrosion.

[0015] In some embodiments of the present application, when the release agent is used as a coating material for a pharmaceutical glass tube, the method of using the release agent includes: spraying the diluted release agent on the outer surface of the pharmaceutical glass tube using a spraying device, wherein the temperature of the pharmaceutical glass tube is controlled to be 345-380°C. Controlling the temperature of the pharmaceutical glass tube within the range of 345-380°C helps to achieve uniform spraying and effective curing of the release agent, thereby obtaining a coating layer with excellent performance and stability. This helps to improve the quality and reliability of the pharmaceutical glass tube, and plays a protective and guarantee role in drug packaging and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the spraying method when the release agent is used as a coating material for a medicinal glass tube in an embodiment of the present application.

[0018] Icons: 1- spray gun; 2- pharmaceutical glass tube; 3- heating gun. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below. If the specific conditions are not specified in the embodiments, they are carried out according to the conventional conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0020] The embodiment of the present application provides an application of an emulsion-type silicone release agent in the field of glass coating technology. For example, it can be used in the field of glass protective film technology, and the glass protective film includes but is not limited to a protective film for a medicinal glass container (a medicinal glass bottle, a medicinal glass tube 2), and a protective film for a photoresist glass container. The release agent was purchased from Xinyue Silicone International Trade (Shanghai) Co., Ltd. The model of the release agent is KM-9782, and the main component of the release agent is silicone oil. The release agent itself is used in the fields of demolding, lubricants, anti-adhesive agents, etc. during the molding of food packaging containers and polystyrene resin products. However, the inventor has found through experiments that the release agent can also be used in the field of glass coating technology after being diluted with water, and the release agent can be diluted with water and sprayed on the outer or inner surface of the glass, which can play a certain protective role, and can also improve the strength and physical and chemical properties of the glass surface; it is important that the release agent does not need to rely on organic solvents when used as a coating agent or a coating solution, and only needs to be diluted with water, which will not cause pollution to the environment.

[0021] In the embodiment of the present application, the release agent needs to be diluted with water to a volume concentration of 2-5% when used. When the release agent is used as a coating material for a photoresist glass container, the method of using the release agent includes:

[0022] (1) diluting the release agent with water to a volume concentration of 2-5% to obtain a release agent solution for standby use;

[0023] (2) cleaning the photoresist glass container with pure water using a bottle washer while oscillating with ultrasonic waves to clean impurities on the glass surface, and then drying the cleaned glass container;

[0024] (3) The above release agent solution is atomized at 0.2-0.5Mpa to obtain an atomized liquid, and then the atomized liquid is sprayed into the dried medicinal glass container through a high-pressure nozzle device so that the inner wall is evenly covered with a thin film; then dried at 100-120°C for 5-15 minutes to eliminate the moisture on the inner wall, and then a second spraying is performed. The operation is the same as the first time, and the purpose is to strengthen the thickness of the film. Then, the mesh belt is sent into a heating and curing furnace (the heating temperature is controlled to be 340-450°C, and the heating time is 3-15 minutes). During the heating process, the release agent will decompose organic silicon inside to form a silicon-oxygen tetrahedron structure. A large number of silicon-oxygen tetrahedrons form a silicon-oxygen layer on the glass surface to form a protective film for the glass structure, thereby improving the strength and physical and chemical properties of the glass. The above high-pressure nozzle device (pressure nozzle device) is a common nozzle device on the market, such as the ST-6 nozzle.

[0025] When the release agent is used as a coating material for a medicinal glass tube 2, the method of using the release agent includes: spraying the diluted release agent on the outer surface of the medicinal glass tube 2 using a spraying device (such as a spray gun 1), wherein the temperature of the medicinal glass tube 2 is controlled to be 345-380°C. If the temperature is lower than this range, other heating devices (such as a glass tube online heating gun 3) can be used to heat the glass tube to a predetermined temperature so that the spray solution solidifies. The spray gun 1 is a common spray gun on the market, such as the PT-01-A spray gun produced by Qinhuangdao Tongbo Technology Co., Ltd.; the heating gun 3 is also a common heating gun on the market, such as the DTQ-01-A heating gun produced by Qinhuangdao Tongbo Technology Co., Ltd.

[0026] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0027] Example 1

[0028] This embodiment provides an application of a release agent in the technical field of protective film for a medicinal glass tube 2. When the release agent is used as a coating material for a medicinal glass tube 2, the method of using the release agent is as follows:

[0029] Figure 1 This is a schematic diagram of the spraying method in this embodiment, please refer to Figure 1 . Use three spray guns 1 to apply the release agent solution diluted to a volume concentration of 2%. The three spray guns 1 are evenly spaced (120° apart) on the same outer circumference of the glass tube. During spraying, the release agent solution will be sprayed from the nozzles of the three spray guns 1 to the outer surface of the glass tube, so that the release agent solution is evenly covered on the outer surface of the glass tube. During the spraying process, the medicinal glass tube 2 will be pulled to move forward at a uniform speed, and it will continue to rotate at a uniform speed during the uniform forward movement. Among them, the temperature of the medicinal glass tube 2 is controlled to be 360°C. If the temperature is lower than this range, the glass tube online heating gun 3 can be used to heat the glass tube to a predetermined temperature so that the release agent solution on the outer surface of the glass tube can be solidified.

[0030] Example 2

[0031] This embodiment provides an application of a release agent in the technical field of protective films for medicinal glass bottles. When the release agent is used as a coating material for medicinal glass bottles, the method of using the release agent is as follows:

[0032] (1) diluting the release agent with water to a volume concentration of 2% to obtain a release agent solution for later use;

[0033] (2) The pharmaceutical glass bottles are cleaned with pure water using a bottle washing machine, and ultrasonic waves are oscillated to clean impurities on the glass surface, and then the cleaned glass bottles are dried at 110° C.;

[0034] (3) The release agent solution is atomized at 0.3 MPa to obtain an atomized liquid, and then the atomized liquid is sprayed into the dried medicinal glass bottle using a high-pressure nozzle device so that the inner wall is evenly covered with a thin film; then it is dried at 110°C to eliminate the moisture on the inner wall, and then a second spraying is performed. The operation is the same as the first time, and the purpose is to increase the thickness of the film. The film is then sent into a heating and curing furnace (the heating temperature is controlled to be 360°C and the heating time is 10 minutes) by a mesh belt for curing.

[0035] Example 3

[0036] This embodiment provides an application of a release agent in the technical field of protective films for medicinal glass bottles. When the release agent is used as a coating material for medicinal glass bottles, the method of using the release agent is as follows:

[0037] (1) diluting the release agent with water to a volume concentration of 1% to obtain a release agent solution for later use;

[0038] (2) The pharmaceutical glass bottles are cleaned with pure water using a bottle washing machine, and ultrasonic waves are oscillated to clean impurities on the glass surface, and then the cleaned glass bottles are dried at 110° C.;

[0039] (3) The release agent solution is atomized at 0.3 MPa to obtain an atomized liquid, and then the atomized liquid is sprayed into the dried medicinal glass bottle using a high-pressure nozzle device so that the inner wall is evenly covered with a thin film; then it is dried at 110°C to eliminate the moisture on the inner wall, and then a second spraying is performed. The operation is the same as the first time, and the purpose is to increase the thickness of the film. The film is then sent into a heating and curing furnace (the heating temperature is controlled to be 360°C and the heating time is 10 minutes) by a mesh belt for curing.

[0040] Example 4

[0041] This embodiment provides an application of a release agent in the technical field of protective films for medicinal glass bottles. When the release agent is used as a coating material for medicinal glass bottles, the method of using the release agent is as follows:

[0042] (1) diluting the release agent with water to a volume concentration of 5% to obtain a release agent solution for standby use;

[0043] (2) The pharmaceutical glass bottles are cleaned with pure water using a bottle washing machine, and ultrasonic waves are oscillated to clean impurities on the glass surface, and then the cleaned glass bottles are dried at 110° C.;

[0044] (3) The release agent solution is atomized at 0.3 MPa to obtain an atomized liquid, and then the atomized liquid is sprayed into the dried medicinal glass bottle using a high-pressure nozzle device so that the inner wall is evenly covered with a thin film; then it is dried at 110°C to eliminate the moisture on the inner wall, and then a second spraying is performed. The operation is the same as the first time, and the purpose is to increase the thickness of the film. The film is then sent into a heating and curing furnace (the heating temperature is controlled to be 360°C and the heating time is 10 minutes) by a mesh belt for curing.

[0045] Example 5

[0046] This embodiment provides an application of a release agent in the technical field of protective films for medicinal glass bottles. When the release agent is used as a coating material for medicinal glass bottles, the method of using the release agent is as follows:

[0047] (1) diluting the release agent with water to a volume concentration of 7% to obtain a release agent solution for later use;

[0048] (2) The pharmaceutical glass bottles are cleaned with pure water using a bottle washing machine, and ultrasonic waves are oscillated to clean impurities on the glass surface, and then the cleaned glass bottles are dried at 110° C.;

[0049] (3) The release agent solution is atomized at 0.3 MPa to obtain an atomized liquid, and then the atomized liquid is sprayed into the dried medicinal glass bottle using a high-pressure nozzle device so that the inner wall is evenly covered with a thin film; then it is dried at 110°C to eliminate the moisture on the inner wall, and then a second spraying is performed. The operation is the same as the first time, and the purpose is to increase the thickness of the film. The film is then sent into a heating and curing furnace (the heating temperature is controlled to be 360°C and the heating time is 10 minutes) by a mesh belt for curing.

[0050] Example 6

[0051] This embodiment provides an application of a release agent in the technical field of protective films for medicinal glass bottles. When the release agent is used as a coating material for medicinal glass bottles, the method of using the release agent is as follows:

[0052] (1) diluting the release agent with water to a volume concentration of 2% to obtain a release agent solution for later use;

[0053] (2) The pharmaceutical glass bottles are cleaned with pure water using a bottle washing machine, and ultrasonic waves are oscillated to clean impurities on the glass surface, and then the cleaned glass bottles are dried at 110° C.;

[0054] (3) The release agent solution is atomized at 0.3 MPa to obtain an atomized liquid, and then the atomized liquid is sprayed into the dried medicinal glass bottle using a high-pressure nozzle device so that the inner wall is evenly covered with a thin film; then it is dried at 110°C to eliminate the moisture on the inner wall, and then a second spraying is performed. The operation is the same as the first time, and the purpose is to increase the thickness of the film. The film is then sent into a heating and curing furnace (the heating temperature is controlled to be 320°C and the heating time is 10 minutes) by a mesh belt for curing.

[0055] Example 7

[0056] This embodiment provides an application of a release agent in the technical field of protective films for medicinal glass bottles. When the release agent is used as a coating material for medicinal glass bottles, the method of using the release agent is as follows:

[0057] (1) diluting the release agent with water to a volume concentration of 2% to obtain a release agent solution for later use;

[0058] (2) The pharmaceutical glass bottles are cleaned with pure water using a bottle washing machine, and ultrasonic waves are oscillated to clean impurities on the glass surface, and then the cleaned glass bottles are dried at 110° C.;

[0059] (3) The release agent solution is atomized at 0.3 MPa to obtain an atomized liquid, and then the atomized liquid is sprayed into the dried medicinal glass bottle using a high-pressure nozzle device so that the inner wall is evenly covered with a thin film; then dried at 110°C to eliminate the moisture on the inner wall, and then a second spraying is performed. The operation is the same as the first time, and the purpose is to increase the thickness of the film. The film is then sent into a heating and curing furnace (the heating temperature is controlled to be 420°C and the heating time is 10 minutes) by a mesh belt for curing.

[0060] Example 8

[0061] This embodiment provides an application of a release agent in the technical field of protective films for medicinal glass bottles. When the release agent is used as a coating material for medicinal glass bottles, the method of using the release agent is as follows:

[0062] (1) diluting the release agent with water to a volume concentration of 2% to obtain a release agent solution for later use;

[0063] (2) The pharmaceutical glass bottles are cleaned with pure water using a bottle washing machine, and ultrasonic waves are oscillated to clean impurities on the glass surface, and then the cleaned glass bottles are dried at 110° C.;

[0064] (3) The release agent solution is atomized at 0.3 MPa to obtain an atomized liquid, and then the atomized liquid is sprayed into the dried medicinal glass bottle using a high-pressure nozzle device so that the inner wall is evenly covered with a thin film; then it is dried at 110°C to eliminate the moisture on the inner wall, and then a second spraying is performed. The operation is the same as the first time, and the purpose is to increase the thickness of the film. The film is then sent into a heating and curing furnace (the heating temperature is controlled to be 470°C and the heating time is 10 minutes) by a mesh belt for curing.

[0065] Please see Table 1 for some parameters of the above embodiment.

[0066] Table 1

[0067] Group Release agent solution concentration (%) Heating temperature(℃) Heating time (min) Example 3 1 360 10 Example 4 5 360 10 Example 5 7 360 10 Example 6 2 320 10 Example 7 2 420 10 Example 8 2 470 10

[0068] Test Example 1

[0069] In this test example, the scratch amount of the coated medicinal glass tube 2 provided in Example 2 and the original medicinal glass tube 2 without coating are detected by visual inspection.

[0070] After testing with this spray solution, the amount of scratches was reduced from 35% to 0%.

[0071] Test Example 2

[0072] In this test example, the physical and chemical properties of the coated pharmaceutical glass bottles provided in Examples 2-8 and the original pharmaceutical glass bottles without coating were tested, wherein the water resistance was tested with reference to ISO 719, the acid resistance was tested with reference to DIN1211, the alkali resistance was tested with reference to ISO 695, and the internal stress was tested with reference to YBB00162003-2015. The test results of the above items are shown in Table 2.

[0073] Table 2

[0074]

[0075]

[0076] By comparing Examples 2-5, it can be seen that when the volume concentration of the release agent solution is 2-5%, the internal stress and physical and chemical properties of the medicinal glass bottle are good. By comparing Examples 2, 6-8, it can be seen that when the temperature of heating and curing is 340-450°C, it is conducive to rapid volatilization, thereby achieving the formation of a uniform film, and can also promote the cross-linking reaction between the release agent molecules, enhance the degree of chemical cross-linking of the film, and increase the strength and physical and chemical properties of the film.

[0077] In summary, after coating with this release agent solution as the coating solution, the internal stress, acid resistance, alkali resistance and inner surface water resistance of the glass bottle are improved, ensuring the safety of drug use.

[0078] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

Claims

1. An application of an emulsion type silicone release agent in the field of glass coating technology, characterized in that: The model of the release agent is KM-9782; the release agent is used in the technical field of glass protective film, and the glass protective film is a protective film for medicinal glass containers; The emulsion-type silicone release agent is diluted with water and then sprayed on the inner surface of the pharmaceutical glass; The method for using the release agent as a coating material for a medicinal glass container includes: Spraying the release agent solution on the inner surface of the pre-treated medicinal glass container for the first time, then drying and spraying for the second time in sequence, and then heating and curing the medicinal glass container after the second spraying; The preparation of the release agent solution comprises: diluting the release agent with water to a volume concentration of 2-5%; The conditions of the heating and curing treatment include: a heating temperature of 340-450° C. and a heating time of 3-15 minutes; during the heating process, the organic silicon inside the release agent will decompose to form a silicon-oxygen tetrahedron structure, and the silicon-oxygen tetrahedron will form a silicon-oxygen layer on the surface of the glass to form a protective film for the glass; The spraying comprises: atomizing the diluted release agent solution at 0.2-0.5Mpa to obtain an atomized liquid, and then spraying the atomized liquid into the medicinal glass container using a pressure nozzle device to cover the inner wall of the medicinal glass container with a thin film.

2. The use according to claim 1, characterized in that: The release agent is used in the technical field of protective films for medicinal glass containers.

3. The use according to claim 2, characterized in that: The release agent is used in the technical field of protective films for medicinal glass bottles.

4. The use according to claim 1, characterized in that: The pre-treatment includes: cleaning and drying the medicinal glass container.

5. The use according to claim 4, characterized in that: The drying conditions include: drying temperature of 100-120° C., and drying time of 5-15 min.

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