CN116875394A - Water-in-oil type double-cloud-point liquid crystal cleaning agent - Google Patents
Water-in-oil type double-cloud-point liquid crystal cleaning agent Download PDFInfo
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- CN116875394A CN116875394A CN202310735154.4A CN202310735154A CN116875394A CN 116875394 A CN116875394 A CN 116875394A CN 202310735154 A CN202310735154 A CN 202310735154A CN 116875394 A CN116875394 A CN 116875394A
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- 239000012459 cleaning agent Substances 0.000 title claims abstract description 59
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 52
- 239000004094 surface-active agent Substances 0.000 claims abstract description 61
- 239000002736 nonionic surfactant Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 25
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 25
- SFNALCNOMXIBKG-UHFFFAOYSA-N ethylene glycol monododecyl ether Chemical compound CCCCCCCCCCCCOCCO SFNALCNOMXIBKG-UHFFFAOYSA-N 0.000 claims abstract description 23
- HIQIXEFWDLTDED-UHFFFAOYSA-N 4-hydroxy-1-piperidin-4-ylpyrrolidin-2-one Chemical compound O=C1CC(O)CN1C1CCNCC1 HIQIXEFWDLTDED-UHFFFAOYSA-N 0.000 claims abstract description 16
- 150000001336 alkenes Chemical group 0.000 claims abstract description 16
- 239000003945 anionic surfactant Substances 0.000 claims abstract description 16
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims abstract description 15
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 12
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 150000003333 secondary alcohols Chemical group 0.000 claims abstract description 12
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 12
- 150000007942 carboxylates Chemical class 0.000 claims abstract description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 10
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001384 succinic acid Substances 0.000 claims abstract description 9
- -1 succinic acid diester Chemical class 0.000 claims abstract description 9
- 239000004064 cosurfactant Substances 0.000 claims abstract description 5
- 235000019198 oils Nutrition 0.000 claims description 31
- 229920000168 Microcrystalline cellulose Polymers 0.000 claims description 28
- 235000019813 microcrystalline cellulose Nutrition 0.000 claims description 28
- 239000008108 microcrystalline cellulose Substances 0.000 claims description 28
- 229940016286 microcrystalline cellulose Drugs 0.000 claims description 28
- HJVAFZMYQQSPHF-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanol;boric acid Chemical compound OB(O)O.OCCN(CCO)CCO HJVAFZMYQQSPHF-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 7
- 235000020238 sunflower seed Nutrition 0.000 claims description 5
- 150000005690 diesters Chemical class 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims 10
- 238000004140 cleaning Methods 0.000 abstract description 41
- 230000000694 effects Effects 0.000 abstract description 29
- 238000011086 high cleaning Methods 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 239000004530 micro-emulsion Substances 0.000 description 7
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000008237 rinsing water Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/94—Mixtures with anionic, cationic or non-ionic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/166—Organic compounds containing borium
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/18—Hydrocarbons
- C11D3/184—Hydrocarbons unsaturated
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2093—Esters; Carbonates
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/382—Vegetable products, e.g. soya meal, wood flour, sawdust
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/008—Polymeric surface-active agents
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/04—Carboxylic acids or salts thereof
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
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Abstract
The application discloses a water-in-oil type double-cloud-point liquid crystal cleaning agent which comprises the following raw materials in parts by weight: 50-80 parts of oil phase, 5-20 parts of surfactant, 5-10 parts of cosurfactant and 5-30 parts of water phase; wherein the oil phase is selected from olefin and isopropyl myristate, and the number of carbon atoms of the olefin is 9-14; the surfactant is nonionic surfactant and gemini surfactant, and the weight ratio of the nonionic surfactant to the gemini surfactant is (0.5-1.2): 1, a step of; the nonionic surfactant is selected from secondary alcohol polyoxyethylene ether and alkynol polyoxyethylene ether; the gemini surfactant is a rosin-based anionic surfactant and a laureth (3) carboxylate symmetrical succinic acid diester surfactant. The cleaning agent prepared by the application has the advantages of high cleaning speed, excellent cleaning effect, biodegradability, environmental protection and no pollution.
Description
Technical Field
The application relates to the technical field of cleaning agents, in particular to a water-in-oil type double-cloud-point liquid crystal cleaning agent.
Background
LCD is a display using liquid crystal as material, which is an organic compound in a state between liquid and solid, and under normal temperature, the liquid crystal has fluidity and optical anisotropy, and becomes transparent liquid when heated to a certain temperature, and becomes crystalline after cooling.
In the production process of LCD, the LCD needs to be cleaned for many times to ensure the service performance and service life of the product, wherein the most important link is cleaning of a large amount of residual liquid crystal on the surface of the LCD box, in PIN PINs and in slits after filling the liquid crystal in a vacuum system; if the residual liquid crystal cannot be effectively removed, the appearance of the product, the display effect of the liquid crystal display, the yield, the service performance and the service life of the product are affected, and the electrode can be broken under the conditions of high temperature and high humidity. Therefore, cleaning of the residual liquid crystal is indispensable.
At present, the non-ODS cleaning agent in the LCD industry has three types of water-based, semi-water-based and solvent-based cleaning agents, but the water-based cleaning agent has larger dependence on ultrasonic waves, larger surface tension of water than that of solvent, poorer wettability on slits and slower cleaning speed. Although the semi-water-based cleaning agent has high cleaning speed, the flash point is lower, and the danger coefficient is higher; the rinsing water after being cleaned is difficult to rinse, has floating oil on the surface, has high COD and does not meet the environmental protection requirement.
Therefore, development of a cleaning agent which is high in cleaning speed, good in cleaning effect and environment-friendly is urgently needed.
Disclosure of Invention
In order to solve at least one technical problem, a cleaning agent which is high in cleaning speed, good in cleaning effect and environment-friendly is developed, and the water-in-oil type double-cloud-point liquid crystal cleaning agent is provided.
The water-in-oil type double-cloud-point liquid crystal cleaning agent comprises the following raw materials in parts by weight: 50-80 parts of oil phase, 5-20 parts of surfactant, 5-10 parts of cosurfactant and 5-30 parts of water phase;
wherein the oil phase is selected from olefin and isopropyl myristate, and the number of carbon atoms of the olefin is 9-14;
the surfactant is nonionic surfactant and gemini surfactant, and the weight ratio of the nonionic surfactant to the gemini surfactant is (0.5-1.2): 1, a step of;
the nonionic surfactant is selected from secondary alcohol polyoxyethylene ether and alkynol polyoxyethylene ether;
the gemini surfactant is a rosin-based anionic surfactant and a laureth (3) carboxylate symmetrical succinic acid diester surfactant.
By adopting the technical scheme, the cleaning agent prepared by adopting the special components and the proportions has the advantages of high cleaning speed, excellent cleaning effect, biodegradability, environmental protection and no pollution;
the oil phase is selected from olefin and isopropyl myristate, so that the wettability of the cleaning agent is improved;
the application adopts a compound system of nonionic surfactant and gemini surfactant to prepare the special water-in-oil microemulsion cleaning agent, forms special double cloud point characteristics, improves the cleaning rate of the cleaning agent, has high flash point and improved safety performance, and the rinsed water after cleaning can form oil-in-water microemulsion, is easy to rinse, has no residual cleaning agent on the surface of the LCD box, PIN PINs and cracks, and has excellent cleaning and rinsing effects;
the nonionic surfactant is compounded by adopting specific secondary alcohol polyoxyethylene ether and alkynol polyoxyethylene ether, so that the nonionic surfactant is compounded, and the prepared cleaning agent has excellent surface activity;
the gemini surfactant adopts a specific rosin-based anionic surfactant and laureth (3) carboxylate symmetrical succinic acid diester surfactant, and the anionic surfactant and the nonionic surfactant are compounded to form a gemini surfactant system, so that the wettability and compatibility of the cleaning agent are greatly improved, the surface activity is high, and the cleaning rate is high.
Optionally, the weight ratio of the secondary alcohol polyoxyethylene ether to the alkynol polyoxyethylene ether is (2-3): 4.
optionally, the weight ratio of the rosin-based anionic surfactant to the laureth (3) carboxylate symmetrical succinic diester surfactant is 1: (0.8-1.5).
By adopting the technical scheme, the nonionic surfactant and the gemini surfactant prepared by adopting the specific proportions have high activity and excellent comprehensive performance.
Optionally, the content of isopropyl myristate is 15-30wt% of the oil phase content.
Optionally, the cleaning agent further comprises modified microcrystalline cellulose, wherein the content of the modified microcrystalline cellulose is 1-5wt% of the oil phase.
Optionally, the particle size of the modified microcrystalline cellulose is 50-200nm.
Optionally, the modified microcrystalline cellulose comprises the following raw materials in parts by weight: sunflower seed oil: ethanol=1: (3-5): (6-8).
By adopting the technical scheme, the application also adds the modified microcrystalline cellulose which has the characteristics of hydrophilicity and oleophylic property and is used as a porous medium, so that the cleaning effect of the cleaning agent for cleaning the liquid crystal is improved.
Optionally, the cleaning agent further comprises triethanolamine borate, wherein the content of the triethanolamine borate is 2-4wt% of the content of the surfactant.
By adopting the technical scheme, the triethanolamine borate is also added, so that the prepared cleaning agent has high flash point, good safety, high surface activity, high cleaning speed and high efficiency.
Optionally, the dual cloud points of the cleaning agent are T1 and T2, the T1 is 44-54 ℃, and the T2 is more than or equal to 80 ℃.
By adopting the technical scheme, the cleaning agent prepared by the application has the characteristic of double cloud points, and the characteristic of the cleaning agent prepared by the application can be further controlled according to the characteristic of double cloud points, so that the cleaning effect of the cleaning agent is improved, the rinsed water after cleaning is easier to rinse, the waste of water is reduced, and the water resource is saved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the cleaning agent prepared by adopting the special components and the proportions has the advantages of high cleaning speed, excellent cleaning effect, biodegradability, environmental protection and no pollution;
2. the application adopts a compound system of nonionic surfactant and gemini surfactant to prepare the special water-in-oil microemulsion cleaning agent, forms special double cloud point characteristics, improves the cleaning rate of the cleaning agent, has high flash point and improved safety performance, and the rinsed water after cleaning can form oil-in-water microemulsion, is easy to rinse, has no residual cleaning agent on the surface of an LCD box, PIN PINs and slits, and has excellent cleaning and rinsing effects;
3. the gemini surfactant is compounded by adopting a specific anionic surfactant and a nonionic surfactant to form a gemini surfactant system, so that the wettability and compatibility of the cleaning agent are greatly improved, the surface activity is high, and the cleaning rate is high.
Detailed Description
The present application will be described in further detail with reference to examples.
The water-in-oil type double-cloud-point liquid crystal cleaning agent comprises the following raw materials in parts by weight: 50-80 parts of oil phase, 5-20 parts of surfactant, 5-10 parts of cosurfactant and 5-30 parts of water phase;
wherein the oil phase is selected from olefin and isopropyl myristate, and the number of carbon atoms of the olefin is 9-14;
the surfactant is nonionic surfactant and gemini surfactant, and the weight ratio of the nonionic surfactant to the gemini surfactant is (0.5-1.2): 1, a step of;
the nonionic surfactant is selected from secondary alcohol polyoxyethylene ether and alkynol polyoxyethylene ether;
the gemini surfactant is a rosin-based anionic surfactant and a laureth (3) carboxylate symmetrical succinic acid diester surfactant.
One of the important processes in the production process of LCD is to fill liquid crystal in a vacuum system, but after the liquid crystal filling is finished, a large amount of residual liquid crystal exists on the surface of the LCD box, in the PIN PINs and in the slits, and the residual liquid crystal needs to be cleaned at the moment; however, the residual liquid crystal cannot be effectively removed, which affects the appearance of the product, the display effect of the liquid crystal display, the yield of the product, the service performance and the service life, and may also cause electrode disconnection under high temperature and high humidity conditions.
At present, the water-based cleaning agent has larger dependence on ultrasonic waves, larger surface tension of water than that of a solvent, poorer wetting property on a slit and lower cleaning speed. Although the semi-water-based cleaning agent has high cleaning speed, the flash point is lower, and the danger coefficient is higher; the rinsing water after being cleaned is difficult to rinse, has floating oil on the surface, has high COD and does not meet the environmental protection requirement.
The inventor designs the technical scheme of the application aiming at the problems, firstly, the oil phase is selected from olefin and isopropyl myristate, so that the wettability of the cleaning agent is improved.
Finally, a special water-in-oil microemulsion cleaning agent is prepared by adopting a compound system of a nonionic surfactant and a gemini surfactant, so that the special double cloud point characteristic is formed, the cleaning rate of the cleaning agent is improved, the flash point is high, the safety performance is improved, the rinsed water after cleaning can form an oil-in-water microemulsion, the rinsing is easy, the cleaning agent is free of residues on the surface of LCD (liquid crystal display), PIN (personal identification number) PINs and slits, and the cleaning and rinsing effects are excellent;
the nonionic surfactant is compounded by adopting specific secondary alcohol polyoxyethylene ether and alkynol polyoxyethylene ether, so that the nonionic surfactant is compounded, and the prepared cleaning agent has excellent surface activity;
the gemini surfactant adopts a specific rosin-based anionic surfactant and laureth (3) carboxylate symmetrical succinic acid diester surfactant, and the anionic surfactant and the nonionic surfactant are compounded to form a gemini surfactant system, so that the wettability and compatibility of the cleaning agent are greatly improved, the surface activity is high, and the cleaning rate is high.
Therefore, the cleaning agent prepared by adopting the special components and the proportions has the advantages of high cleaning speed, excellent cleaning effect, biodegradability, environmental protection and no pollution.
The cleaning method comprises the following steps: the liquid crystal is ultrasonically cleaned by the cleaning agent prepared by the application at the temperature lower than 45 ℃, and the water temperature of the rinsing tank is controlled at 55-80 ℃ for rinsing after the cleaning is finished.
The medicine model of the application is obtained from the raw materials of the application which are commercially available unless specified otherwise:
olefins: the number of carbon atoms is 9-14;
isopropyl myristate: purity 98%;
secondary alcohol polyoxyethylene ether: purity 98%;
alkynol polyoxyethylene ether: purity 98%;
rosin-based anionic surfactant: purity 99%;
laurinol polyoxyethylene ether (3) carboxylate symmetrical succinic acid diester surfactant: purity 99%;
butanol: purity 99%;
microcrystalline cellulose: a pharmaceutical grade;
sunflower seed oil: brand, gold Long Yu;
ethanol: purity 99%;
triethanolamine borate: the purity is 99%.
The detection item and the detection method are as follows:
liquid crystal removal rate: and observing the cleaning effect of the surface and the slit of the product by using a metallographic microscope, and calculating the decontamination rate of the LCD box surface, the PIN foot and the slit liquid crystal by using an area difference method.
Cloud point: the cloud point of a cleaning agent is measured according to ASTM D2024-65 (1997) Standard test method for cloud point of nonionic surfactants.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Examples 1 to 5
The water-in-oil type double-cloud-point liquid crystal cleaning agent comprises the following specific raw materials in parts by weight as shown in table 1.
TABLE 1 examples 1-5 parts by weight of raw materials
Wherein the cosurfactant is butanol, and the water phase is deionized water.
The surfactant is nonionic surfactant and gemini surfactant, and the weight ratio of the nonionic surfactant to the gemini surfactant is shown in Table 2.
TABLE 2 weight ratio of nonionic surfactant to gemini surfactant
Wherein the nonionic surfactant is secondary alcohol polyoxyethylene ether and alkynol polyoxyethylene ether, and the weight ratio of the secondary alcohol polyoxyethylene ether to the alkynol polyoxyethylene ether is shown in table 3.
TABLE 3 weight ratio of Secondary alcohol Polyoxyethylene Ether to alkynol Polyoxyethylene Ether
The gemini surfactant is a rosin-based anionic surfactant and a laureth (3) carboxylate symmetrical type succinic acid diester surfactant, and the weight ratio of the rosin-based anionic surfactant to the laureth (3) carboxylate symmetrical type succinic acid diester surfactant is shown in table 4.
TABLE 4 Gemini surfactant formulation
Example 1
The isopropyl myristate content was 15wt% of the oil phase content, and the number of carbon atoms in the olefin was 9.
Example 2
The isopropyl myristate content was 18wt% of the oil phase content, and the number of carbon atoms in the olefin was 11.
Example 3
The isopropyl myristate content was 21wt% of the oil phase content, and the number of carbon atoms in the olefin was 14.
Example 4
The isopropyl myristate content was 25wt% of the oil phase content, and the number of carbon atoms in the olefin was 10.
Example 5
The isopropyl myristate content was 30wt% of the oil phase content, and the number of carbon atoms in the olefin was 12.
Comparative examples 1 to 4
Comparative example 1
Based on example 3, the remaining components and preparation methods were identical to those of example 3 except that isopropyl myristate was replaced with equal amounts of deionized water at a level of 0.
Comparative example 2
Based on example 3, the components and preparation methods were the same as in example 3 except that the surfactants were all nonionic surfactants.
Comparative example 3
Based on example 3, the components and preparation were identical to those of example 3, except that the surfactant was a gemini surfactant.
Comparative example 4
The procedure of example 3 was followed except that the gemini surfactant was a rosin-based anionic surfactant.
The cloud points of the cleaners prepared in examples 1 to 5 and comparative examples 1 to 4 were measured, and the prepared cleaners were used to clean the liquid crystals remaining on the LCD cell, and the removal rate of the liquid crystals remaining on the LCD cell was measured, and the measurement results are shown in table 5.
TABLE 5 results of examples 1-5
As can be seen from examples 1-5, comparative examples 1-4 and Table 5, the cleaning agent prepared by the application has the advantages of good cleaning effect, minimum LCD surface and PIN liquid crystal removal rate of 99.89%, minimum slit liquid crystal removal rate of 99.86%, high cleaning speed, maximum cleaning time of 5min, cloud point T1 of 44-54 ℃, cloud point T2 of more than or equal to 80 ℃, and double cloud point characteristics of the cleaning agent, and the micro emulsion state of the cleaning agent is controlled, the water-in-oil state is maintained when residual liquid crystal is cleaned, the cleaning rate is improved, and the oil-in-water state is controlled when the LCD box is rinsed after the cleaning is finished, so that rinsing water is easy to rinse, and the water consumption is reduced.
As is clear from comparative examples 1 and Table 5, the oil phase of the present application was free from isopropyl myristate, and the wettability of the cleaning agent prepared by the present application was reduced, the effect of removing liquid crystals was poor, and the cloud point was smaller than that of example 3.
As can be seen from comparative examples 2-3 and Table 5, the present application employs nonionic surfactant and gemini surfactant to prepare surfactant complex system, and the prepared cleaning agent has excellent liquid crystal cleaning effect and high cleaning speed, and can form double cloud point system.
As can be seen from comparative examples 4 and 5, the gemini surfactant prepared by compounding the anionic surfactant and the nonionic surfactant has excellent liquid crystal cleaning effect and high cleaning speed, and can form a double cloud point system.
Examples 6 to 10
Example 6
The procedure of example 3 was followed except that the modified microcrystalline cellulose was added in an amount of 1% by weight of the oil phase, the particle size of the modified microcrystalline cellulose was 80nm, and the other components and the preparation method were the same as those of example 3.
Example 7
The procedure of example 3 was followed except that the modified microcrystalline cellulose was added in an amount of 4% by weight of the oil phase, the particle size of the modified microcrystalline cellulose was 200nm, and the other components and the preparation method were the same as those of example 3.
Example 8
The procedure of example 3 was followed except that the modified microcrystalline cellulose was added in an amount of 5% by weight of the oil phase, the particle size of the modified microcrystalline cellulose was 100nm, and the other components and the preparation method were the same as those of example 3.
Example 9
The procedure of example 3 was followed except that the modified microcrystalline cellulose was added in an amount of 3% by weight of the oil phase, the particle size of the modified microcrystalline cellulose was 150nm, and the other components and the preparation method were the same as those of example 3.
Example 10
The procedure of example 3 was followed except that the modified microcrystalline cellulose was added in an amount of 2% by weight of the oil phase, the particle size of the modified microcrystalline cellulose was 50nm, and the other components and the preparation method were the same as those of example 3.
Wherein, the specific raw material components of the modified microcrystalline cellulose are shown in Table 6.
TABLE 6 specific raw material Components of modified microcrystalline cellulose
| Raw material composition | Example 6 | Example 7 | Example 8 | Example 9 | Example 10 |
| Microcrystalline cellulose/kg | 1 | 1 | 1 | 1 | 1 |
| Sunflower seed oil/kg | 3.5 | 3 | 4 | 5 | 4.5 |
| Ethanol/kg | 6 | 7 | 7.5 | 8 | 6.5 |
The preparation method of the modified microcrystalline cellulose comprises the following steps: and mixing microcrystalline cellulose, sunflower seed oil and ethanol uniformly, and stirring to prepare the modified microcrystalline cellulose.
The cleaning agents prepared in examples 6 to 10 were used to clean the residual liquid crystal on the LCD cell, and the removal rate of the residual liquid crystal on the LCD cell was measured, and the measurement results are shown in table 7.
TABLE 7 detection results of cleaning agents prepared in examples 6 to 10
As can be seen from examples 6-10 and Table 7, the cleaning agent prepared by adding modified microcrystalline cellulose has excellent cleaning effect, the slit liquid crystal removal rate can be 99.995%, and the cleaning speed is high and is at most 4min; the inventor speculates that the modified microcrystalline cellulose is used as a porous medium, so that the dispersibility of the water phase and the oil phase is improved, and further, when the liquid crystal remained on the surface of the LCD box and the PIN foot is cleaned, the liquid crystal is more fully dissolved, and the cleaning effect is better.
Examples 11 to 15
Example 11
The procedure of example 6 was followed except that triethanolamine borate was added at a level of 2wt% of the surfactant.
Example 12
The composition and preparation were the same as in example 6, except that triethanolamine borate was added at a level of 2.5wt% of the surfactant, based on example 6.
Example 13
The procedure of example 6 was followed except that triethanolamine borate was added at a level of 3wt% of the surfactant.
Example 14
The composition and preparation were the same as in example 6, except that triethanolamine borate was added in an amount of 3.5wt% based on the surfactant content in example 6.
Example 15
The procedure of example 6 was followed except that triethanolamine borate was also added at a level of 4wt% of the surfactant.
The cleaning agents prepared in examples 11 to 15 were used to clean the residual liquid crystal on the LCD cell, and the removal rate of the residual liquid crystal on the LCD cell was measured, and the measurement results are shown in table 8.
TABLE 8 detection results of cleaning agents prepared in examples 11 to 15
As can be seen from examples 11-15 and Table 8, the cleaning agent prepared by adding triethanolamine borate in the application has a surface liquid crystal removal rate of 100%, a slit liquid crystal removal rate of 99.999%, and excellent cleaning effect.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes according to the principles of the present application should be covered by the scope of the present application.
Claims (9)
1. The water-in-oil type double-cloud-point liquid crystal cleaning agent is characterized by comprising the following raw materials in parts by weight: 50-80 parts of oil phase, 5-20 parts of surfactant, 5-10 parts of cosurfactant and 5-30 parts of water phase;
wherein the oil phase is selected from olefin and isopropyl myristate, and the number of carbon atoms of the olefin is 9-14;
the surfactant is nonionic surfactant and gemini surfactant, and the weight ratio of the nonionic surfactant to the gemini surfactant is (0.5-1.2): 1, a step of;
the nonionic surfactant is selected from secondary alcohol polyoxyethylene ether and alkynol polyoxyethylene ether;
the gemini surfactant is a rosin-based anionic surfactant and a laureth (3) carboxylate symmetrical succinic acid diester surfactant.
2. The water-in-oil type double cloud point liquid crystal detergent according to claim 1, wherein the weight ratio of the secondary alcohol polyoxyethylene ether to the alkynol polyoxyethylene ether is (2-3): 4.
3. the water-in-oil type double cloud point liquid crystal detergent according to claim 1, wherein the weight ratio of the rosin-based anionic surfactant to the laureth (3) carboxylate symmetrical succinic diester surfactant is 1: (0.8-1.5).
4. The water-in-oil type double cloud point liquid crystal detergent as claimed in claim 1, wherein the content of isopropyl myristate is 15-30wt% of the oil phase.
5. The water-in-oil type double cloud point liquid crystal detergent according to claim 1, further comprising modified microcrystalline cellulose, wherein the content of the modified microcrystalline cellulose is 1-5wt% of the oil phase.
6. The water-in-oil type double cloud point liquid crystal detergent as claimed in claim 5, wherein the particle size of the modified microcrystalline cellulose is 50-200nm.
7. The water-in-oil type double cloud point liquid crystal detergent according to claim 5, wherein the modified microcrystalline cellulose comprises the following raw materials in parts by weight: sunflower seed oil: ethanol=1: (3-5): (6-8).
8. The water-in-oil type double cloud point liquid crystal detergent as claimed in claim 1, wherein the detergent further comprises triethanolamine borate, and the content of the triethanolamine borate is 2-4wt% of the content of the surfactant.
9. The water-in-oil type double-cloud-point liquid crystal detergent according to claim 1, wherein the double cloud points of the detergent are T1 and T2, T1 is 44-54 ℃, and T2 is more than or equal to 80 ℃.
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