CN111089943B - Measuring method for rapidly judging cleaning performance of mildew-proof or isolating powder on glass surface - Google Patents
Measuring method for rapidly judging cleaning performance of mildew-proof or isolating powder on glass surface Download PDFInfo
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- CN111089943B CN111089943B CN201911412008.8A CN201911412008A CN111089943B CN 111089943 B CN111089943 B CN 111089943B CN 201911412008 A CN201911412008 A CN 201911412008A CN 111089943 B CN111089943 B CN 111089943B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000002955 isolation Methods 0.000 claims abstract description 30
- 238000005507 spraying Methods 0.000 claims abstract description 25
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- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
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- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0091—Powders
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Detergent Compositions (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a measuring method for rapidly judging the cleaning performance of mildew-proof or isolating powder on the surface of glass, which comprises the following steps: (1) uniformly spraying mildew-proof or isolating powder to be detected on the surface of glass to be detected; (2) dripping kerosene on the glass sprayed with the mildew-proof or isolating powder, and after the kerosene on the glass is fully infiltrated with the mildew-proof or isolating powder, stacking a plurality of pieces of glass, and then conveying the glass into drying equipment for heating and drying for 0.2-2 hours; (3) after drying, the glass was cooled and then washed to see if there were any sticking or non-washable spots on the surface of each glass sheet. Compared with the prior art, the method has the advantages of convenience, rapidness, strong operability, accurate measurement result, high reproducibility and capability of measuring in a common conventional laboratory, and provides a reliable reference basis for selecting a proper mildewproof isolation powder material. In addition, the invention provides effective guarantee for the development, production and quality control of powder products.
Description
Technical Field
The invention relates to a measuring method for rapidly judging the cleaning performance of mildew-proof or isolating powder on the surface of glass, belonging to the field of material science.
Background
In the glass manufacturing industry, to avoid the enormous losses incurred by the erosive bonding of glass surfaces, it is currently the most internationally popular practice to spray glass mold-proofing or release powders onto glass surfaces.
The mildew-proof powder is prepared by stirring and mixing a solid acid mildew-proof material and a high molecular polymer, and uniformly spraying the mixture on the surface of glass after the granularity, the flow property, the scratch-proof property, the acid value, the water content and the like are tested to be qualified. Based on the fact that the current glass industry basically needs to carry out deep processing follow-up processes, the requirements on surface cleaning performance after powder spraying and long-term storage of glass original sheets are higher and higher. The mildew-proof or isolating powder material is difficult to clean under the condition of storage and transportation with frequent temperature and humidity changes and the higher pressure between the glass, so that the subsequent deep processing is adversely affected.
The current cleaning performance test method of the mildew-proof or isolating powder mainly comprises the following steps:
(1) and (3) during the mildew resistance test: when the mildew resistance of the glass is observed, the glass is taken out according to the time set by the test, and after the glass is cleaned, whether the surface is mildewed or not is observed, and at the moment, the cleaning performance of the powder on the surface of the glass can also be seen, but the time is usually several days, and the mildewing and the unclean cleaning cannot be strictly distinguished.
(2) Temperature resistance test: the glass is kept warm for a certain time (4-6 hours) at 90 ℃ after powder spraying, and then whether the powder can be adhered to the glass to cause unclean cleaning is observed, only the influence of the temperature is caused in the experiment, and the cleaning performance is not fully observed. In the actual glass production and storage and transportation processes, the front section is the comprehensive effect of various conditions such as high plate temperature, cutting oil and the like, and the rear section is also connected with deep processing procedures such as film coating, mirror making, tempering and the like, so that higher pre-control requirements are provided for the cleaning performance of the glass surface.
It can be seen that the two methods are long in time consumption, the accuracy and the integrity of the test result are weak, and the applicability matching between the mildew-proof or isolating powder and the glass and between the mildew-proof or isolating powder and the glass cutting fluid cannot be reflected timely and comprehensively.
In the actual production operation, the cleaning performance of the used mildew-proof or isolation powder on a certain batch of glass is often found to be poor after the mildew-proof or isolation powder is applied to the glass for several days or even more than ten days, and the used mildew-proof or isolation powder is difficult to completely clean by adopting a conventional cleaning method, so that the subsequent deep processing difficulty of the corresponding glass is increased, or the time for performing the subsequent deep processing on the corresponding glass is delayed by adopting an unconventional method to clean the mildew-proof or isolation powder, so that great waste is caused.
Disclosure of Invention
The invention aims to provide a measuring method for rapidly judging the cleaning performance of mildew-proof or isolating powder on the surface of glass aiming at the defects of the conventional measuring method for the cleaning performance of the mildew-proof or isolating powder on the surface of glass.
A measuring method for rapidly judging the cleaning performance of mildew-proof or isolating powder on the surface of glass comprises the following steps:
(1) uniformly spraying mildew-proof or isolating powder to be detected on the surface of glass to be detected;
(2) dripping kerosene on the glass sprayed with the mildew-proof or isolating powder, and after the kerosene on the glass is fully infiltrated with the mildew-proof or isolating powder, stacking a plurality of pieces of glass, and then conveying the glass into drying equipment for heating and drying for 0.2-2 hours;
(3) after drying, the glass was cooled and then washed to see if there were any sticking or non-washable spots on the surface of each glass sheet.
In the step (3), if the glass surface has bonding phenomena or spots which cannot be cleaned, the cleaning performance of the to-be-detected mildew-proof or isolation powder does not meet the requirement of the subsequent deep processing of the to-be-detected glass on the cleanliness of the glass surface; if the surface of the glass to be detected has no bonding phenomenon and has no spot which can not be cleaned, the cleaning performance of the mildew-proof or isolation powder to be detected meets the requirement of the subsequent deep processing of the glass to be detected on the cleanliness of the surface of the glass.
It is discovered that by dripping kerosene on glass in advance, whether the used mildew-proof or isolating powder is qualified or not can be judged before the mildew-proof or isolating powder is applied to the glass, or whether the used mildew-proof or isolating powder is matched with the glass to be subjected to powder application or not, so that the cleaning performance of the mildew-proof or isolating powder on the surface of the glass can be judged in advance. Specifically, in step (3):
1) if the glass surface has bonding phenomena or spots which cannot be cleaned, the cleaning performance of the mildew-proof or isolating powder to be detected does not meet the requirement of the subsequent deep processing of the glass to be detected on the cleanliness of the glass surface, namely the applied mildew-proof or isolating powder is difficult to clean from the glass to be detected, or the applied mildew-proof or isolating powder can be cleaned from the glass to be detected only by adopting an unconventional cleaning method;
2) if the surface of the glass to be tested has no bonding phenomenon and no spot which can not be cleaned, the cleaning performance of the mildew-proof or isolation powder to be tested meets the requirement of the subsequent deep processing of the glass to be tested on the cleanliness of the surface of the glass, namely the glass to be tested can be cleaned manually or mechanically by adopting conventional normal-temperature clear water.
The method is suitable for various existing glass mildew-proof or isolation powder, and is particularly suitable for mildew-proof or isolation powder formed by mixing one or more of organic materials and inorganic materials. In a preferable scheme, the organic material is selected from one or a mixture of more of polyethylene, polyvinyl chloride, polypropylene, polymethyl methacrylate, polyethylene glycol terephthalate, polybutylene terephthalate, nylon, polycarbonate, rubber, cellulose acetate, fumaric acid, benzoic acid, adipic acid, stearic acid and starch; the inorganic material is selected from one or more of boric acid, zinc oxide, magnesium oxide, titanium dioxide, calcium carbonate, alumina, silicon dioxide, active carbon, talcum powder and attapulgite. The particle size of the mildew-proof or isolation powder to be detected can be 10-500 microns.
The mildew-proof or isolating powder in the invention refers to the mildew-proof powder or isolating powder of glass, wherein the mildew-proof powder is also conventionally called mildew-proof isolating powder. The mildew-proof powder generally has mildew-proof and isolating effects on glass at the same time, and the isolating powder generally mainly has the isolating effect on the glass.
The method of the invention is suitable for various glass with different characteristics in the prior art, such as float glass, rolled glass, coated glass, toughened glass, mirror-making glass, electronic grade glass and the like, which can be used for screening or judging the cleaning effect of the mildew-proof or isolating powder in advance in the method.
In the step (1), the spraying amount of the mildew-proof or isolating powder to be measured can be properly adjusted within the range of the conventional powder application amount, so as to be better fit the situation in the actual production. In a preferable scheme, the powder spraying amount of the mildew-proof or isolation powder to be detected on the surface of the glass to be detected is 1.0-1.5 g per square meter.
In the step (2), one drop, two drops, three drops, or more drops of kerosene may be dropped onto the glass after the application of the powder. In a preferable scheme, one drop or several drops of kerosene are added dropwise on the glass sprayed with the mildew-proof or isolating powder, and 3-5 drops are more preferably added dropwise dispersedly for taking efficiency and effect into consideration.
In the step (2), the drying device may adopt various conventional drying devices, such as an oven and the like. The drying temperature is preferably 60-80 ℃, the drying time is 0.2-2 h, the drying time can be further reduced to 0.5-1 h, and the operation time is far shorter than the testing time of the existing detection method.
And (3) drying, and then cooling to room temperature or 20-30 ℃.
In the step (3), the method for cleaning the glass refers to a conventional cleaning method, and specifically is a normal-temperature clean water scrubbing method or a cleaning machine for cleaning the glass.
The invention has no specific requirement on the kerosene, and because the using amount of the kerosene in the method is extremely low, the kerosene does not bring adverse reactions such as toxicity, anesthesia, irritation and the like to the environment or operators. At present, the method is not suitable for other conventional solvents, and tested solvents such as gasoline, diesel oil, ethanol, chloroform, benzene, hexane and the like do not have accurate corresponding results with the actual cleaning performance of the isolation powder.
The method comprises the steps of soaking the powder material and the kerosene fully, keeping the temperature, and judging the cleaning performance of the powder on the surface of the glass through the subsequent cleaning effect. The method has the advantages of convenience, rapidness, strong operability, high repeatability of the determination result and capability of measuring in a common conventional laboratory, and provides a reliable reference basis for selecting a proper mildew-proof or isolating powder material.
In addition, the invention provides effective guarantee for the development, production and quality control of powder products.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example 1
A method for measuring the cleaning performance of polymethyl methacrylate (PMMA) on a glass surface comprises the following steps: the method comprises the steps of uniformly spraying isolation powder PMMA powder (with the particle size of 150 micrometers, respectively marked as sample 1 and sample 2) of two different manufacturers to be tested on the surfaces of a plurality of pieces of coated glass to be tested (the powder spraying amount is 1.0 g/square meter), then dripping 3-5 drops of kerosene to the glass, after the kerosene and the powder are fully soaked, stacking a plurality of pieces of glass sprayed with the same powder, putting the glass into an oven (80 ℃) for heat preservation for 30min, taking out the glass, cooling the glass to room temperature, cleaning the surface of the glass by using a normal-temperature clean water method, and observing whether each piece of glass has a bonding phenomenon or spots which cannot be cleaned. The results show that:
the glass surface of the sample 1 has a bonding phenomenon and spots which cannot be cleaned, and the cleaning performance of the powder is judged to be not satisfied with the cleanliness requirement of the subsequent deep processing of the glass to be detected on the glass surface. Uniformly and sufficiently applying the PMMA powder of the sample 1 to the glass to be tested according to a normal flow of spraying the isolation powder, then normally storing the PMMA powder, preventing rain and dampness in the storage process, taking out the PMMA powder after storing for 6 months, and cleaning the surface of the glass by adopting a conventional normal-temperature clean water scrubbing method, wherein the powder on the surface of the glass cannot be completely removed;
the glass surface of the sample 2 has no bonding phenomenon and no spots which can not be cleaned, and the cleaning performance of the powder is judged to meet the cleanliness requirement of the subsequent deep processing of the glass to be detected on the glass surface. The PMMA powder of the sample 2 is uniformly and sufficiently applied to the glass to be tested according to the normal flow of spraying the mildew-proof isolation powder, then the glass to be tested is normally stored, is not drenched in the storage process and is not affected with damp, the glass is taken out after being stored for 6 months, the surface of the glass is cleaned by adopting a conventional normal-temperature clean water scrubbing method, and the powder on the surface of the glass can be smoothly and completely removed.
Example 2
A method for measuring the cleaning performance of boric acid on a glass surface comprises the following steps: the method comprises the steps of uniformly spraying two mildew-proof powder boric acid powders (with the particle size of 80 microns and respectively marked as a sample 3 and a sample 4) of different manufacturers to be tested on the surfaces of a plurality of pieces of float glass to be tested (the powder spraying amount is 1.2 g/square meter), then dripping 3-5 drops of kerosene (dispersed in several places) onto the glass, after the kerosene and the powders are fully soaked, stacking a plurality of pieces of glass sprayed with the same powder, putting the glass into an oven (60 ℃) for heat preservation for 1 hour, taking out the glass, cooling the glass to room temperature, cleaning the surface of the glass by using a normal-temperature clean water method, and observing whether each glass surface has a bonding phenomenon or spots which cannot be cleaned. The results show that:
and (3) the glass surface of the sample 3 has a bonding phenomenon, and the cleaning performance of the powder is judged to be not satisfied with the cleanliness requirement of the subsequent deep processing of the glass to be detected on the glass surface. Uniformly and fully applying the boric acid powder of the sample 3 to the glass to be tested according to a normal flow of spraying the mildew-proof or isolating powder, then normally storing the boric acid powder, preventing rain and moisture in the storage process, taking out the boric acid powder after storing for 6 months, cleaning the surface of the glass by adopting a conventional normal-temperature clean water scrubbing method, and finding out that the powder on the surface of the glass cannot be completely removed;
the glass surface of the sample 4 has no bonding phenomenon and no spots which can not be cleaned, and the cleaning performance of the powder is judged to meet the cleanliness requirement of the subsequent deep processing of the glass to be detected on the glass surface. The boric acid powder of the sample 4 is evenly and sufficiently applied to the glass to be tested according to the normal flow of spraying the mildew-proof or isolating powder, then the glass is normally stored, the glass is not wetted by rain and damp in the storage process, the glass is taken out after being stored for 6 months, the surface of the glass is cleaned by adopting a conventional normal-temperature clean water scrubbing method, and the powder on the surface of the glass can be smoothly and completely removed.
Example 3
A method for measuring the cleaning performance of mixed powder of fumaric acid and polyethylene on the surface of glass comprises the following steps: the method comprises the steps of uniformly spraying two types of mildew-proof powder fumaric acid and polyethylene mixed powder (with the average particle size of 200 micrometers, respectively marked as a sample 5 and a sample 6) to be detected, wherein the two types of mildew-proof powder fumaric acid and polyethylene mixed powder are different in source, onto the surfaces of a plurality of pieces of rolled glass to be detected (the powder spraying amount is 1.2 g/square meter), then dropwise adding kerosene (3-5 drops and dispersing several places) onto the glass, after the kerosene and the powder are fully soaked, stacking a plurality of pieces of glass sprayed with the same type of powder, placing the glass into an oven (60 ℃) for heat preservation for 1 hour, taking out the glass, cooling the glass to room temperature, cleaning the glass surface by using a glass factory cleaning machine, and observing whether each glass surface has bonding phenomena or spots which cannot be cleaned. The results show that:
and (3) the glass surface of the sample 5 has spots which cannot be cleaned, and the cleaning performance of the powder is judged to be not satisfied with the cleanliness requirement of the subsequent deep processing of the glass to be detected on the glass surface. Uniformly and fully applying the powder of the sample 5 to the glass to be tested according to a normal flow of spraying the mildew-proof or isolating powder, then normally storing the glass to be tested, preventing rain and moisture in the storage process, taking out the glass after storing for 6 months, and cleaning the surface of the glass by adopting a conventional normal-temperature clean water scrubbing method, wherein the powder on the surface of the glass cannot be completely removed;
the glass surface of the sample 6 has no bonding phenomenon and no spots which can not be cleaned, and the cleaning performance of the powder is judged to meet the cleanliness requirement of the subsequent deep processing of the glass to be detected on the glass surface. The powder of the sample 6 is applied to the glass to be tested according to the normal flow of spraying mildew-proof or isolation powder, and then is normally stored, the glass is not wetted in the storage process, and is taken out after being stored for 6 months, the surface of the glass is cleaned by adopting a conventional normal-temperature clean water scrubbing method, and the powder on the surface of the glass can be smoothly and completely removed.
Comparative example 1:
the mixed powder of fumaric acid and polyethylene of samples 5 and 6 of example 3 was used to determine the cleaning performance of the powder on the glass surface by the existing temperature resistance test method (i.e., standard operating procedure for determining temperature resistance (SOP) of the glass mold-proof insulating powder). The test method is as follows:
the principle is as follows: through detecting temperature resistance, can know the suitable temperature of spraying of mould proof isolation powder (glass surface temperature), avoid the higher powder that leads to the temperature to change and influence its mould proof performance of keeping apart.
Equipment: and (5) baking.
The method comprises the following steps:
1) preparing 2 glass samples of 200mm multiplied by 200mm, and cleaning and wiping the samples;
2) the middle of 2 pieces of glass is padded with the glass mildew-proof isolation powder, and the glass mildew-proof isolation powder is put into an oven with the temperature of (90 +/-2) DEG C and kept for 4 hours.
3) Taking out and cooling to room temperature, and observing whether the glass surface has bonding phenomenon or spot which can not be cleaned.
As a result: observing the surface of the glass, and taking the surface without bonding phenomenon or spots which can not be cleaned as the qualification. Specific results are shown in table 1.
Comparative example 2
The mixed powder of fumaric acid and polyethylene of samples 5 and 6 of example 3 was used to determine the cleaning performance of the powder on the glass surface by the existing mildew-proof performance test method (i.e., standard operating procedure for determining mildew-proof performance (SOP) of the glass mildew-proof isolation powder).
The principle is as follows: the mildew resistance is one of the commonly used quality monitoring indexes of the glass mildew-proof isolation powder. The main components of the glass mildew-proof isolating powder are mildew preventive and isolating agent, wherein the mildew preventive is generally acid. The glass is stored under high humidity, and active groups in the acid powder on the surface of the glass can neutralize alkali precipitation of the glass after being dissolved in water, so that the corrosion of alkali liquor to a glass network is prevented; on the other hand, hydrophobic groups in the acid powder are closely arranged and stacked on the surface of the glass, so that the hydrophobic effect is achieved, water molecules are not easy to permeate and diffuse to the surface of the glass, and the reaction with the surface of the glass is reduced. The test is to accelerate the mildew process of the glass under the extreme condition of high temperature and high humidity, and by comparing the mildew time of the sample group with that of the blank group, the mildew-proof isolating powder of the glass can be inspected to delay whether the mildew of the glass can meet the preset requirement. And simultaneously measuring the cleaning performance of the mildew-proof isolation powder.
Equipment: constant humidity and heat test box, electrostatic powder gun for experiment and fresh glass sample
The method comprises the following steps:
1. sample preparation work
1.1 set the temperature and humidity of the constant moist heat test chamber, it is recommended to use the temperature of (85 + -2) DEG C and the relative humidity of (85 + -2)%.
1.2 the number of test groups was determined, 8 to 10 glass samples per group, the glass samples having a size of 200mm X200 mm, and the number of each group was written with a marker at the corner of the upper surface of the glass.
1.3, an electrostatic powder gun for experiments can be used for uniformly spraying powder on the surface of the glass, and about 0.04g of powder is uniformly sprayed on each blockRight (spraying powder amount is about 1 g/m) 2 ) The glass was gently stood up to allow excess powder on the surface to fall off.
1.4 Each group of samples was held by iron clips and then vertically placed in a constant humidity heat test chamber.
And 1.5, taking 6 glass sheets, spraying no glass mildew-proof isolation powder on the surfaces of the glass sheets, wherein the glass sheets are used as a blank control group, and vertically placing the blank control group into a constant humidity and heat test chamber after the blank control group is clamped by an iron clamp.
1.6 turn on the heating switch, half an hour later, turn on the humidifying switch.
2. Examination of samples
2.1 the blank control group was checked regularly for 2 days, 3 days, 4 days, 5 days.
2.2 the samples were checked regularly for 4, 6, 8, 10, 12, 14, 18, 24 days. Or to set the time interval of the examination according to established experimental objectives and requirements.
2.3 Each group of samples was examined 1 piece at a time, and the examined samples were retained on the sample holders for review.
2.4 inspection requirements for each glass: after washing and drying, the surface condition (such as whether white spots, fog, round spots and the like exist) is observed by naked eyes, the hand is rough, and the air is in a bad smell.
2.5 the outer two sheets of glass of each set were not the subject of examination.
2.6 the results of the examination are recorded in detail. A photograph may be taken if necessary.
As a result: and recording the glass mildew condition and checking the cleaning performance of the powder. Compared with the function and cleaning performance of the mildew-proof isolation powder on delaying the mildew of the glass, the glass surface has no mildew, no erosion, no scratch and easy cleaning of the surface powder. Specific results are shown in table 1.
Table 1 report of cleaning performance test of example 3 and comparative examples 1 and 2
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (7)
1. A measuring method for rapidly judging the cleaning performance of mildew-proof or isolating powder on the surface of glass is characterized by comprising the following steps:
(1) uniformly spraying mildew-proof or isolating powder to be detected on the surface of glass to be detected; the to-be-tested mildew-proof or isolation powder is one or a mixture of several of an organic material and an inorganic material, and the particle size of the to-be-tested mildew-proof or isolation powder is 10-500 micrometers;
(2) several drops of kerosene are dispersedly dripped on the glass sprayed with the mildew-proof or isolating powder, and after the kerosene on the glass is fully infiltrated with the mildew-proof or isolating powder, a plurality of pieces of glass are stacked mutually and then are sent into drying equipment to be heated and dried for 0.2-2 h; the drying temperature is 60-80 ℃;
(3) after drying, cooling and subsequent washing of the glass, each glass sheet was observed for signs of adhesion or spots which could not be washed off:
if the glass surface has bonding phenomena or spots which cannot be cleaned, the cleaning performance of the to-be-detected mildew-proof or isolation powder does not meet the requirement of the subsequent deep processing of the to-be-detected glass on the cleanliness of the glass surface;
if the surface of the glass to be detected has no bonding phenomenon and has no spot which can not be cleaned, the cleaning performance of the mildew-proof or isolation powder to be detected meets the requirement of the subsequent deep processing of the glass to be detected on the cleanliness of the surface of the glass.
2. The method according to claim 1, wherein in the step (1), the powder spraying amount of the mildew-proof or isolation powder to be tested on the surface of the glass to be tested is 1.0-1.5 g per square meter.
3. The method according to claim 1, wherein in the step (2), 3 to 5 drops of kerosene are dispersedly dropped on the glass sprayed with the mold-proof or isolating powder.
4. The method according to claim 1, wherein in the step (2), the drying device is an oven, the heating and drying temperature is 60-80 ℃, and the heating and drying time is 0.5-1 h.
5. The method according to claim 1, wherein in the step (3), the temperature is cooled to 20 to 30 ℃.
6. The method according to claim 1, wherein in the step (3), the method for cleaning the glass is normal-temperature clean water brushing or clean water brushing by using a cleaning machine.
7. The method according to claim 1, wherein in step (1), the organic material is selected from one or more of polyethylene, polyvinyl chloride, polypropylene, polymethyl methacrylate, polyethylene terephthalate, polybutylene terephthalate, nylon, polycarbonate, rubber, cellulose acetate, fumaric acid, benzoic acid, adipic acid, stearic acid, and starch; the inorganic material is selected from one or more of boric acid, zinc oxide, magnesium oxide, titanium dioxide, calcium carbonate, alumina, silicon dioxide, activated carbon, talcum powder and attapulgite.
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| CN101475316A (en) * | 2009-01-16 | 2009-07-08 | 程道远 | Special mildewproof isolation powder for solar glass |
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