CN112358771A - Glass-discoloration-prevention treating agent and preparation method and application thereof - Google Patents
Glass-discoloration-prevention treating agent and preparation method and application thereof Download PDFInfo
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- CN112358771A CN112358771A CN202010808402.XA CN202010808402A CN112358771A CN 112358771 A CN112358771 A CN 112358771A CN 202010808402 A CN202010808402 A CN 202010808402A CN 112358771 A CN112358771 A CN 112358771A
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- glass
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- treatment agent
- discoloration
- polyvinyl alcohol
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- 238000004649 discoloration prevention Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000011521 glass Substances 0.000 claims abstract description 106
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 82
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 24
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 8
- 150000004985 diamines Chemical class 0.000 claims abstract description 8
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 8
- 229920000570 polyether Polymers 0.000 claims abstract description 8
- 238000004040 coloring Methods 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 15
- 239000012224 working solution Substances 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000001723 curing Methods 0.000 claims description 6
- 239000004745 nonwoven fabric Substances 0.000 claims description 5
- 238000002845 discoloration Methods 0.000 claims description 4
- 239000003112 inhibitor Substances 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 9
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract description 8
- 238000003860 storage Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000005201 scrubbing Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000010408 film Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000005361 soda-lime glass Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000004383 yellowing Methods 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000005494 tarnishing Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention provides a glass-discoloration-prevention treating agent, a preparation method and an application thereof, wherein the glass-discoloration-prevention treating agent comprises the following components in percentage by weight: 6-8% of polyvinyl alcohol, 0.1-0.5% of polyether diamine, 0.5-2% of film-forming assistant, 0.5-1% of defoaming agent, 0.5-1% of emulsifier OP and the balance of pure water. A water scrubbing removable coating is formed on the surface of the glass, so that a basic substance ortho-silicic acid (H4SiO4) which causes the glass to be colored cannot be formed, the effect of preventing the glass from being colored in storage is achieved, and the glass is easy to obtain materials, simple in process, low in cost, convenient to process and suitable for batch production.
Description
Technical Field
The invention relates to the technical field of kitchen appliances, in particular to a glass-coloring-prevention treating agent and a preparation method and application thereof.
Background
The soda-lime glass has low cost, easy cleaning and high appearance, and is widely used in kitchen range and smoke exhaust ventilator. When soda-lime glass is stored in a humid environment, carbon dioxide-containing moisture is gradually diffused into the glass from being adsorbed on the surface of the glass, reacts with sodium silicate and calcium silicate to generate orthosilicic acid (H4SiO4), if a saturated orthosilicic acid (H4SiO4) solution is placed for a long time, amorphous silicon dioxide appears as colloidal particles, precipitates or gels, and a thin film with uneven thickness is formed after drying, so that a coloring phenomenon is formed. At present, the problem of glass glazing is solved by a coating barrier technology or a nano material permeation mode in the market, but the hardness, the abrasion resistance and the easy cleanability are greatly influenced, so that the glass glazing is obviously not suitable for kitchen appliances, or has the problems of high price, complex process, inconvenient operation and the like.
Disclosure of Invention
The present invention is directed to solving, to some extent, one of the problems of the related art in the prior art, and therefore it is an object of the present invention to provide a glass discoloration-preventing treatment agent for preventing the surface of glass from being discolored.
The above purpose is realized by the following technical scheme:
the glass-discoloration-prevention treating agent comprises the following components in percentage by weight: 6-8% of polyvinyl alcohol, 0.1-0.5% of polyether diamine, 0.5-2% of film-forming assistant, 0.5-1% of defoaming agent, 0.5-1% of emulsifier OP and the balance of pure water.
As a further improvement of the invention, the defoamer is polyacrylamide.
As a further improvement of the invention, the polyvinyl alcohol is cold water soluble.
As a further improvement of the invention, the film-forming aid is a lower alcohol ether of ethylene glycol or glycerol.
The invention also aims to provide a preparation method of the glass anti-glazing treatment agent, which has simple process and can prevent the glazing surface from glazing.
The above purpose is realized by the following technical scheme:
the preparation method of the glass anti-coloring treatment agent comprises the following steps:
s1, adding pure water into the dissolving kettle according to the weight percentage;
s2, adding 0.1-0.5% of polyether diamine, 0.5-2% of film-forming auxiliary agent, 0.5-1% of defoaming agent and 0.5-1% of emulsifier OP into a dissolving kettle, and stirring for a first preset time;
s3, dropwise adding 6-8% polyvinyl alcohol into the dissolving kettle while stirring the solution in the dissolving kettle, and stirring for a second preset time;
s4, filtering the solution stirred in the step S3 by a filter screen to obtain the glass-discoloration prevention treatment agent.
As a further improvement of the present invention, after step S4, the following steps are also included:
s5, judging whether the performance of the glass anti-coloring treatment agent is qualified or not;
and S6, if the performance of the glass anti-blooming treatment agent is qualified, filling, sealing and storing the glass anti-blooming treatment agent.
As a further improvement of the invention, the method for judging whether the performance of the glass anti-glazing agent is qualified or not comprises the following steps:
detecting the pH value, the relative density and the viscosity of the glass-discoloration prevention treatment agent;
if the PH value of the glass anti-glazing treatment agent is 6-8, the relative density is 0.9-1.1, and the viscosity is 50-130MPa.s, the performance of the pretreatment agent is qualified.
As a further improvement of the invention, in step S3, the method for dropping 6-8% polyvinyl alcohol into the dissolution kettle is as follows: 6-8% polyvinyl alcohol is dripped into the dissolving kettle through a funnel with the aperture phi of 20 mm-30 mm.
As a further improvement of the present invention, the first preset time is greater than 30 min; the second predetermined time is greater than 2 hours.
The invention also aims to provide the application of the glass anti-glazing treatment agent, which is convenient to operate and can prevent the glazing surface from glazing.
The above purpose is realized by the following technical scheme:
the application of the glass anti-glazing treatment agent comprises the following steps:
adding the glass-discoloration-prevention treating agent into 70-80% alcohol, and uniformly stirring to obtain a working solution, wherein the glass-discoloration-prevention treating agent accounts for 20-50% by weight;
cleaning the surface of the glass by using alcohol to remove stains;
adding the working solution on the non-woven fabric, and uniformly coating the working solution on the surface of the glass;
and drying and curing to obtain the anti-glazing glass.
As a further improvement of the invention, the method for drying and curing comprises the following steps: standing at room temperature for more than 2 hours, or baking at 60-120 deg.C for 2-5 minutes.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the invention provides a glass anti-coloring treatment agent, which is easy to obtain materials and low in cost, and the glass surface treated by the glass anti-coloring treatment agent cannot be colored in a high-temperature and high-humidity storage environment and is easy to erase.
2. The invention provides a preparation method of a glass anti-glazing treatment agent, which has simple process and convenient preparation, and the prepared glass anti-glazing treatment agent can prevent glazing from glazing, is easy to erase and does not influence the appearance of glass products.
3. The invention provides the application of the glass anti-coloring treatment agent, the process is simple, the operation is convenient, the glass treated by the glass anti-coloring treatment agent cannot be colored in a high-temperature and high-humidity environment, the treatment agent is easy to erase, and the characteristics of attractive and elegant appearance of the glass are kept.
Drawings
FIG. 1 is a schematic illustration of glazing in an example embodiment;
FIG. 2 is a flow chart of a method for preparing a glass discoloration inhibitor in accordance with one embodiment;
FIG. 3 is another flow chart of a method for preparing a glass anti-tarnishing treatment agent in accordance with the example.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.
The first embodiment is as follows:
the glass-discoloration-prevention treating agent comprises the following components in percentage by weight: 6-8% of polyvinyl alcohol, 0.1-0.5% of polyether diamine, 0.5-2% of film-forming assistant, 0.5-1% of defoaming agent, 0.5-1% of emulsifier OP and the balance of pure water. The invention provides a glass anti-coloring treatment agent, which is characterized in that a main film forming substance is polyvinyl alcohol, and the characteristic of strong hydroxyl of the polyvinyl alcohol is kept after film forming, namely, the glass anti-coloring treatment agent has strong hydrophilicity, and the molecular formula of the polyvinyl alcohol is as follows:
when the water vapor containing carbon dioxide is absorbed on the surface treated by the glass anti-coloring treatment agent, the polyvinyl alcohol and water form hydrogen bonds to separate the carbon dioxide in the water vapor, so that the orthosilicic acid which is the basic substance for causing the glass to be colored can not be formed, and the purpose of preventing the glass from being colored is achieved. Moreover, the polyvinyl alcohol film has the characteristics of being soluble in water and insoluble in organic solvents. Therefore, the original purpose of the product can be restored by wiping off the coating film with water before use.
After the surface of the soda-lime glass is treated by the glass-decorating-preventing treating agent, the glass such as the soda-lime glass cannot be decorated under a high-temperature and high-humidity storage environment, the surface treatment can be easily erased by water, the original high-grade appearance of the glass can be recovered by cleaning the product with wet cloth before use, the soda-lime glass can be prevented from being decorated, the erasing is easy, the appearance of the product cannot be influenced, and the use of a user cannot be influenced.
The invention provides a glass coloring-prevention treating agent, which is characterized in that a water-scrubbing removable coating is formed on the surface of glass, so that a basic substance orthosilicic acid (H4SiO4) causing glass coloring cannot be formed, the glass coloring-prevention treating agent plays a role in preventing glass coloring in storage, and the glass coloring-prevention treating agent is easy in material acquisition, simple in process, low in cost, convenient to process and suitable for batch production.
Preferably, the defoamer is polyacrylamide. The polyvinyl alcohol is cold water soluble. The film-forming assistant is low-carbon alcohol ether of glycol or glycerol.
The glass anti-coloring treatment agent provided by the invention has the pH value of 6-8, the relative density of 0.9-1.1 and the viscosity of 50-130 MPa.s.
Example two:
referring to fig. 2, a method for preparing the glass anti-glazing agent according to the first embodiment comprises the following steps:
s101, adding pure water into a dissolving kettle according to the weight percentage;
s102, adding 0.1-0.5% of polyether diamine, 0.5-2% of film-forming auxiliary agent, 0.5-1% of defoaming agent and 0.5-1% of emulsifier OP into a dissolving kettle, and stirring for a first preset time;
s103, dropwise adding 6-8% polyvinyl alcohol into the dissolving kettle while stirring the solution in the dissolving kettle, and stirring for a second preset time;
and S104, filtering the solution stirred in the step S3 by using a filter screen to obtain the glass-blooming-preventing treatment agent.
The invention provides a preparation method of a glass anti-coloring treatment agent, which has the advantages of simple process and convenient operation, can prevent the soda-lime glass from coloring, is easy to erase and does not influence the appearance of a glass product.
In step S102, the order of adding 0.1 to 0.5% of polyether diamine, 0.5 to 2% of a film-forming aid, 0.5 to 1% of a defoaming agent, and 0.5 to 1% of an emulsifier OP is not limited.
In step S102, the first preset time is greater than 30 min; in step S103, the second preset time is greater than 2 hours. The stirring time is limited so that the stirring is sufficient and the mixing is prevented from being uneven.
In step S103, the method for dropping 6-8% polyvinyl alcohol into the dissolution kettle comprises the following steps: 6-8% polyvinyl alcohol is dripped into the dissolving kettle through a funnel with the aperture phi of 20 mm-30 mm. Slowly dripping 6-8% polyvinyl alcohol into the dissolving kettle through a funnel to prevent side reaction caused by too fast addition.
In step S104, a 200 mesh screen is selected for use.
Referring to fig. 3, the following steps are also included after step S104:
s105, judging whether the performance of the glass anti-coloring treatment agent is qualified or not;
and if the performance of the glass anti-coloring treatment agent is qualified, the step S106 is carried out, and the glass anti-coloring treatment agent is filled, sealed and stored.
The qualification of the glass anti-coloring treatment agent is checked, so that the phenomenon that the glass is colored after being treated by the glass anti-coloring treatment agent and the user experience is influenced due to unqualified glass anti-coloring treatment agent caused by errors in the preparation process or the problems of raw materials is prevented.
In step S105, the method of determining whether the performance of the glass-discoloration inhibitor is acceptable is:
s1051, detecting the PH value, the relative density and the viscosity of the glass-discoloration-preventing treating agent;
s1052, if the pH value of the glass anti-coloring treatment agent is 6-8, the relative density is 0.9-1.1, and the viscosity is 50-130MPa.s, the performance of the pretreatment agent is qualified.
And (4) carrying out performance test on the glass anti-coloring treatment agent to ensure the effect of the glass anti-coloring treatment agent. If the density is low or the viscosity is low, the addition amount of the polyvinyl alcohol is possibly low, a small amount of the polyvinyl alcohol can be added and then stirred, and the performance of the glass anti-coloring treatment agent is tested again after stirring. Avoiding waste.
Example three:
the application of the glass anti-glazing treatment agent in the first embodiment comprises the following steps:
step S201, adding the glass-discoloration-prevention treating agent into 70% -80% alcohol, and uniformly stirring to obtain a working solution, wherein the glass-discoloration-prevention treating agent accounts for 20% -50% by weight;
step S202, cleaning the surface of the glass by using alcohol to remove stains;
step S203, adding the working solution on the non-woven fabric, and uniformly coating the working solution on the surface of the glass;
and step S204, drying and curing to obtain the anti-blooming glass.
The invention provides an application of a glass anti-glazing treatment agent, which is to coat the glass anti-glazing treatment agent on the surface of glass to form a layer of glass anti-glazing treatment film on the surface of the glass, so that the glass can be prevented from glazing, and the glass is easy to erase and does not influence the appearance of glass products.
Preferably, the drying and curing method comprises the following steps: standing at room temperature for more than 2 hours, or baking at 60-120 deg.C for 2-5 minutes.
The working solution containing the anti-glass-yellowing treatment agent with different weight percentages, which is obtained by the method, is smeared on the surface of glass, and the performance of the anti-glass obtained after the glass is dried and solidified is tested.
Working solutions respectively containing 10%, 20%, 30%, 40%, 50% and 60% of the glass anti-glazing treatment agent by weight percentage are adopted. Cleaning the surface of the glass by using alcohol to remove stains; respectively adding working solution containing 10%, 20%, 30%, 40%, 50% and 60% of glass anti-glazing treatment agent by weight percent on non-woven fabric, uniformly coating the working solution on the surface of glass, baking the glass at 60-120 ℃ for 2-5 minutes, putting the prepared sample piece into a moisture test box with the temperature of 45 ℃ plus or minus 3 ℃ and the humidity of 93% RH plus or minus 33% RH for 720 hours, and then taking out the sample piece, wherein the results are as follows:
after the test, the coating film was wiped off, and the surface of the glass was wiped with a pressure of 1 kg using a nonwoven fabric wetted with water.
After the glass state is tested, whether the glass surface has the phenomenon of coloring is checked through naked eyes, if the glass surface has the phenomenon of coloring shown in figure 1, the glass surface is NG, which indicates that the glass does not meet the requirements after the test; if the glass surface has no color appearance as shown in fig. 1, the glass is regarded as "OK/no abnormal", which indicates that the glass meets the requirements after the test.
The test data shows that: the anti-glass-yellowing treatment agent with the weight percentage of 20-50% has excellent anti-yellowing effect, the anti-glass-yellowing treatment agent with the weight percentage of less than 10% has the risk of yellowing after coating because of low concentration or thin thickness of the coating; a weight percentage of the glazing protection treatment higher than 50%, for example 60%, involves the risk of not being removable after coating. The original glass without the glass anti-coloring treatment agent has serious coloring.
The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.
Claims (11)
1. The glass anti-coloring treatment agent is characterized by comprising the following components in percentage by weight: 6-8% of polyvinyl alcohol, 0.1-0.5% of polyether diamine, 0.5-2% of film-forming assistant, 0.5-1% of defoaming agent, 0.5-1% of emulsifier OP and the balance of pure water.
2. The agent as claimed in claim 1, wherein the defoaming agent is polyacrylamide.
3. The agent as claimed in claim 1, wherein the polyvinyl alcohol is cold water soluble.
4. The agent as claimed in claim 1, wherein the film forming aid is a lower alcohol ether of ethylene glycol or glycerol.
5. The method for preparing the glass discoloration inhibitor according to any one of claims 1 to 4, comprising the steps of:
s101, adding pure water into a dissolving kettle according to the weight percentage;
s102, adding 0.1-0.5% of polyether diamine, 0.5-2% of film-forming auxiliary agent, 0.5-1% of defoaming agent and 0.5-1% of emulsifier OP into a dissolving kettle, and stirring for a first preset time;
s103, dropwise adding 6-8% polyvinyl alcohol into the dissolving kettle while stirring the solution in the dissolving kettle, and stirring for a second preset time;
and S104, filtering the solution stirred in the step S3 by using a filter screen to obtain the glass-blooming-preventing treatment agent.
6. The agent as claimed in claim 5, further comprising the following steps after step S104:
s105, judging whether the performance of the glass anti-coloring treatment agent is qualified or not;
and S106, if the performance of the glass anti-coloring treatment agent is qualified, filling, sealing and storing the glass anti-coloring treatment agent.
7. The agent for preventing glass from being colored according to claim 6, wherein the method for judging whether the performance of the agent for preventing glass from being colored is qualified is as follows:
detecting the pH value, the relative density and the viscosity of the glass-discoloration prevention treatment agent;
if the PH value of the glass anti-glazing treatment agent is 6-8, the relative density is 0.9-1.1, and the viscosity is 50-130MPa.s, the performance of the pretreatment agent is qualified.
8. The agent for preventing glass from being colored according to claim 5, wherein in step S103, the method for adding 6-8% polyvinyl alcohol dropwise into the dissolving tank comprises: 6-8% polyvinyl alcohol is dripped into the dissolving kettle through a funnel with the aperture phi of 20 mm-30 mm.
9. The agent according to claim 5, wherein the first predetermined time is greater than 30 min; the second predetermined time is greater than 2 hours.
10. Use of a glass discoloration inhibitor according to any of claims 1 to 4, comprising the steps of:
adding the glass-discoloration-prevention treating agent into 70-80% alcohol, and uniformly stirring to obtain a working solution, wherein the glass-discoloration-prevention treating agent accounts for 20-50% by weight;
cleaning the surface of the glass by using alcohol to remove stains;
adding the working solution on the non-woven fabric, and uniformly coating the working solution on the surface of the glass;
and drying and curing to obtain the anti-glazing glass.
11. The agent as claimed in claim 10, wherein the drying and curing method comprises: standing at room temperature for more than 2 hours, or baking at 60-120 deg.C for 2-5 minutes.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150275023A1 (en) * | 2012-10-31 | 2015-10-01 | Francesco Cortecci | Water-soluble coating for provisionally covering and protecting surfaces |
| CN108129927A (en) * | 2017-12-22 | 2018-06-08 | 深圳南科二维复材科技有限公司 | A kind of purposes of zirconium phosphate nano sheet and scratch-resistant water paint |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150275023A1 (en) * | 2012-10-31 | 2015-10-01 | Francesco Cortecci | Water-soluble coating for provisionally covering and protecting surfaces |
| CN108129927A (en) * | 2017-12-22 | 2018-06-08 | 深圳南科二维复材科技有限公司 | A kind of purposes of zirconium phosphate nano sheet and scratch-resistant water paint |
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