WO2019147103A1 - 전력이 공급중인 전기 및 전자통신장비에 화재발생의 위험 없이 사용 가능한 세정제 조성물 및 이를 이용한 세정 장치 - Google Patents
전력이 공급중인 전기 및 전자통신장비에 화재발생의 위험 없이 사용 가능한 세정제 조성물 및 이를 이용한 세정 장치 Download PDFInfo
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- WO2019147103A1 WO2019147103A1 PCT/KR2019/001225 KR2019001225W WO2019147103A1 WO 2019147103 A1 WO2019147103 A1 WO 2019147103A1 KR 2019001225 W KR2019001225 W KR 2019001225W WO 2019147103 A1 WO2019147103 A1 WO 2019147103A1
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- WIPO (PCT)
- Prior art keywords
- detergent composition
- cleaning
- weight
- fire
- dust
- Prior art date
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0028—Liquid extinguishing substances
- A62D1/0057—Polyhaloalkanes
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0092—Gaseous extinguishing substances, e.g. liquefied gases, carbon dioxide snow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- 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
-
- 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
- C11D3/24—Organic compounds containing halogen
-
- 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
- C11D3/24—Organic compounds containing halogen
- C11D3/245—Organic compounds containing halogen containing fluorine
-
- 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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/24—Hydrocarbons
-
- 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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/28—Organic compounds containing halogen
-
- 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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/28—Organic compounds containing halogen
- C11D7/30—Halogenated hydrocarbons
-
- 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
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/22—Electronic devices, e.g. PCBs or semiconductors
Definitions
- the present invention relates to a detergent composition which can be used in electric and electronic communication equipments which are supplied with electric power without any risk of fire, and more particularly to a detergent composition using electricity and electric communication equipment
- the present invention relates to a detergent composition for removing foreign matter which is free from the risk of fire from sparks, arcs, corona and the like, and exhibits an appropriate evaporating power within 3 minutes after cleaning to minimize contamination such as dust.
- Conventional methods of removing foreign matter in electric and electronic communication equipment include a method of removing a brush or a brush without special advancement, b) a method of shaking off using a strong wind of a compressor, c) a method of using a chemical cleaning agent A method of decomposing and removing foreign matters is mainly used.
- the high-precision electronic equipment that is becoming more and more compact is not capable of applying a brush or brush or physical force, and the method of using the strong wind of the compressor is a malfunction of the semiconductor due to the electrostatic charge of hundreds or thousands of volts,
- the method of using the strong wind of the compressor is a malfunction of the semiconductor due to the electrostatic charge of hundreds or thousands of volts.
- Chemical cleaning agents are mainly a) water-based, b) chlorine-based, and c) hydrocarbon-based systems, but (a) water systems are not practically applicable to electrical and electronic communication equipment due to the problem of electric shock accidents; b) C) The hydrocarbon system has good insulation and detergency, but it is limited to flammability and late evaporation time.
- the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an electronic device and a method of manufacturing the same which are free from scattered dust or dust, There is no risk of flammable fire associated with spark, arc, and corona occurrence of electromagnetic switches, that is, relays and magnet switches, and that there is no danger of flammable fires after cleaning, And a cleaning device using the cleaning composition.
- the detergent composition according to the present invention is a detergent composition which can be used in electrical and electronic telecommunication equipments in which electric power is supplied without risk of fire occurrence; Characterized in that it comprises the following components a) to h).
- trans-1,2-dichloroethene g) 0.5 to 4% by weight of 2,5-dibromo-4-fluorotoluene, and h) 1,1,2 Tetrafluoroethyl 2,2,2-trifluoroethyl ether, and 15 to 28% by weight of 2-tetrafluoroethyl 2,2,2-trifluoroethyl ether.
- the conventional mixture of hydrocarbon and limonene (BTS-Solv) is a compound having a relatively low polarity, if it is used in an amount of 2% by weight or less, the polarity of the solution of the whole cleaning agent is lowered and the decomposition and weighting ability to the oil component is lowered.
- concentration is 10% by weight or more, the decomposition ability by the penetration strengthening is increased but the flammability which is a problem can not be removed, and stabilization is performed when mixing with b), c), d) and a), f), g) But the detergency is lowered due to separation of the interface and there is a problem that it is difficult to maintain the quality during storage for a long time.
- composition of 1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether 15-28% by weight, it is possible to improve the disadvantage that the interface is free of contaminants and the contaminant removing ability of the organic component is low, .
- the perfluoroalkane compound having 5 to 18 carbon atoms is selected from perfluorodecane, perfluorooctane, perfluoroheptane, perfluorohexane, and perfluoropentane.
- the mixture of f) the hydrocarbon and the limonene is a mixture comprising 50 to 70% by weight of hydrocarbon and 10 to 25% by weight of limonene.
- the detergent composition according to the present invention comprises the steps of: (a) mixing the components b), c), d), and e) at a temperature of 20 to 25 ° C with stirring; (B) stirring the components a), f), and g) separately from the step a); And (c) adding the above h) to further mix the mixture obtained in the above step (a) and the mixture obtained in the above step (b).
- the detergent composition according to the present invention has no flash point, and is characterized in that it evaporates without residues within 3 minutes after cleaning.
- the cleaning apparatus is a cleaning apparatus for spraying a detergent composition, which can be used without any risk of fire, on an electric and electronic communication equipment being supplied with electric power to a contaminated object, and cleaning the object; And a filling container having injection means for filling the above-described detergent composition through a filler, storing the mixture, and injecting the filled detergent composition.
- the spraying means injects the detergent composition at an injection pressure of at least 5.2 kg / cm 2.
- adsorption means for absorbing the detergent composition discharged including the foreign matter sprayed on the object and dissolved therein.
- the filler is preferably a mixture of 1,1,1,2-tetrafluoroethane or 1,1,1,2-tetrafluoroethane and carbon dioxide (CO 2 ). .
- the filler is mixed with 1,1,1,2-Tetrafluoroethane (HFC) at -26.15 ° C, 50 to 55% by weight of a detergent composition, 3 to 5% by weight of a cleaning agent composition with -78.5 ° C CO2 filling gas, Temperature bugs and freezing of semiconductor due to low-temperature bugs and dry ice, and absorbs heat by vaporization, it absorbs a lot of heat instantaneously from electronic parts such as semiconductors and does not cause malfunctions due to deterioration of function.
- HFC 1,1,1,2-Tetrafluoroethane
- the detergent composition since the detergent composition has no flash point and the cleaning device is sprayed at least at an injection pressure of 5.2 kg / cm 2, it can be used as a portable fire extinguisher for initial evolution while ensuring a safety distance in case of fire
- the detergent composition according to the present invention has no flammability and ensures electrical insulation of 56.3 Kv, which is generated during operation of relays and magnet switches during the removal of contaminants such as dust and dust in electrical and electronic communication equipment without interrupting the pressurized power supply. There is no risk of flammable fire accidents in the arc, spark, corona, and has an appropriate evaporation power within 3 minutes after cleaning, which leads to an excellent effect of preventing re-contamination.
- the present invention can be applied to electric power and electric communication equipment which are supplied with electric power of less than 56.3 Kv, in the course of cleaning work, such as defects due to defective structural equipment, poor construction, unrequited handling, instability of management state, lack of electric knowledge,
- a fire is generated, an ignition by an overcurrent, an ignition by an overheating of a connection, an ignition by an electric flame, an ignition by a short, a ground fault, an ignition by a short circuit, Based on various fire types such as ignition by tracking, ignition by dielectric breakdown, ignition by spark caused by switch ON / OFF, ignition by static electricity, lightning by lightning,
- spraying detergent into the fire source does not have flammability, so it can evolve the fire prematurely, so it has an excellent effect of acting as a portable fire extinguisher Occurs.
- the present invention provides an effect of not leaving residues that are agglomerated on an electronic component without giving damage (deformation, discoloration, whitening, corrosion, hardening, shorting, etc.) to the electric and precision electronic components.
- FIG. 1 is a device configuration diagram schematically showing a cleaning apparatus according to a preferred embodiment of the present invention.
- FIG. 1 is a device configuration diagram schematically showing a cleaning apparatus according to a preferred embodiment of the present invention.
- FIG. 2 is a schematic view illustrating a foreign matter removing method using a detergent composition according to a preferred embodiment of the present invention.
- FIG. 3 is a photographic view schematically showing that a foreign substance is dissolved in a detergent composition injected into a foreign matter-contaminated object according to a preferred embodiment of the present invention and absorbed into the absorption means.
- the detergent composition of the present invention is characterized by comprising the following components a) to h).
- the present invention relates to a detergent composition which can be used in electrical and electronic telecommunication equipment supplied with electric power without the risk of fire, and a cleaning device using the same.
- electrical and electronic communication equipments include national communication network (repeater, base station, etc.), power network (substation, underground switch, ground switch, power station) It is defined as covering all kinds of equipment, including all industrial facilities, and the parts included in them.
- the present invention is very useful for equipment that can not shut off the power, and it is very useful for a power source such as a ground switch, a remote control device (FRTU) in a ground switch, a substation electric panel and a telecom room, , Uninterruptible Power Supply (UPS), Power Line Communication (PLC), Remote Control Surveillance System (SCADA), Load Control Unit (LCU), Server, Lift Inverter, IDC Center UPS, Server, And Server, Hi-Pass, TCS, VDS controller in road transport equipment, Sever in military communications, Electrical Panel (PCB Card etc.) in public facilities and industrial facilities, and all electrical and precision electronic equipment and components.
- a power source such as a ground switch, a remote control device (FRTU) in a ground switch, a substation electric panel and a telecom room, , Uninterruptible Power Supply (UPS), Power Line Communication (PLC), Remote Control Surveillance System (SCADA), Load Control Unit (LCU), Server, Lift Inverter, IDC Center UPS,
- the detergent composition of the present invention is characterized by comprising the following components a) to h).
- the detergent composition is not flammable and can be evaporated within 1 minute and 30 seconds and less than 3 minutes required for cleaning after spraying, without leaving residues.
- Trans-1,2-dichloroethene which is a component of the above a), can penetrate and decompose to a wide extent, such as dust, dust-minerals, and vegetable oil contaminated with electric and electronic components .
- the concentration of the component a) in the detergent composition is preferably 50 to 70% by weight.
- concentration in the composition is 70% by weight or more, the amount of the polycarbonate used for the support of the electrical and electronic communication parts or the protective plastic (resin) such as TV case, camera, phone, bolt, watch, terminal block,
- the protective plastic such as TV case, camera, phone, bolt, watch, terminal block
- There is a quality problem such as discoloration, deformation and curing of a polypropylene resin used in a computer component, a connector, a bobbin, a coil form, etc.
- content is less than 50% by weight, there is a problem that the effect of the desired cleaning is not satisfied.
- the component a) is selected from the group consisting of trans-1,2-dichloroethylene, (E) -1,2-dichloroethene, (E) -1,2-dichloroethylene, trans- (Trans-Acetylene dichloride), and the molecular formula is represented by C 2 H 2 Cl 2 .
- the component b), 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane (1,1,1,2,2,3,3,4,4 N, N'afluoro-4-methoxybutane) has a low surface tension of 14 dyne / cm and acts to promote penetration and decomposition of contaminants such as PCB and electronic components in electronic equipment. ), g), it is effective to clean the contaminants more easily by forming a stable physical property.
- the concentration of the component b) in the detergent composition is preferably 1 to 4% by weight
- the component b) may be at least one selected from the group consisting of Methoxyperfluorobutane, Methyl Perfluorobutyl Ether, Nonafluorobutyl Methyl Ether, Methoxy nonafluorobutane, and the like. , And the molecular formula is represented by C 5 H 3 F 9 O.
- the tetrafluoroethene-perfluoropropylvinylether copolymer (c) is an organic fluorine compound, which is strongly bound to carbon and fluorine to form a very stable physical property, and has excellent insulating properties. And penetrates into gaps between electronic components to promote the decomposition of contaminants.
- the concentration of the component c) in the detergent composition is preferably 1 to 4% by weight.
- the above mixing ratio improves the surface activation force, significantly alleviates the interfacial tension, and helps stabilize the physical properties in the stirring process.
- the component c) may also be referred to as poly (tetrafluoroethylene-co-tetrafluoro-ethylene perfluoropropyl ether) or the like, and the molecular formula may be CF 2 CF 2 ) x [CF 2 CF (OCF 2 CF 2 CF 3 )] y .
- the content of the d) component 1,1,1,2,2,3,4,5,5,5-decafluoropentane (1,1,1,2,2,3,4,5,5,5- Decafluoropentane has low surface tension of 14.1 dyne / cm and acts to promote penetration and decomposition of contaminants such as PCB and electronic parts in electronic equipment. It has an effect of removing contaminants more cleanly by forming a stable physical property.
- the concentration of the component (d) in the detergent composition is preferably 3 to 8% by weight.
- the component d) may be referred to as 2H, 3H-decafluoropentane, 2,3-dihydroperfluoropentane and the like, and the molecular formula may be C 5 H 2 F 10 .
- the perfluoroalkane compound (C5-18 perfluoroalkane) having a carbon number of 5 to 18, which is the component e), generally has a boiling point of 40 to 50 DEG C in general fluorine, and evaporates within 25 to 50 seconds after spraying. Therefore, It is composed of 70 ⁇ 80 °C of FBP to delay the evaporation time to more than 1 minute 30 seconds. It helps to avoid vaporization of the heat energy generated in the electronic parts in operation and to clean the contaminants cleanly. .
- the concentration of the component (e) in the detergent composition is preferably 5 to 10% by weight. If the concentration in the composition is more than 10% by weight, it becomes a factor of excessive cost increase. If the concentration in the composition is more than 10% by weight, %, The desired cleaning effect is lowered due to evaporation within 60 seconds after spraying, but there may be quality problems such as malfunction due to heat loss of the electronic parts among other things.
- the component (e) may be selected from perfluoroalkane compounds having 5 to 18 carbon atoms, and examples thereof include perfluorodecane, perfluorooctane, perfluoroheptane, perfluorohexane, Perfluorohexane, and perfluoropentane, and it is preferable to use perfluorodecane having a molecular formula of C 10 F 22 .
- the above b), c), d), and e) show the disadvantage that the common fluorine system does not remove contaminants cleanly because the boiling point evaporates within 25 seconds to 50 seconds after spraying at 40 ° C to 50 ° C.
- the purpose is to prevent errors or malfunction due to rapid heat of vaporization in the electronic components in operation by delaying the evaporation time by more than 1 minute and 30 seconds and less than 3 minutes by avoiding the rapid evaporation of the heat energy generated in the operating electronic components. So that the pollutants can be cleanly removed.
- the mixture of hydrocarbons and limonene which is the component f), acts to prevent malfunctions such as dust and dust in electrical and electronic communication equipment.
- the f) component includes 50 to 70% by weight of hydrocarbons and 10 to 25% by weight of limonene, and may further include additives such as surfactants.
- BTS-Solv described in the prior art No. 10-0802394 of the present invention can be used, and a commercially available product BTS-SOLV (product name: BTS-77) can be used.
- the concentration of the component (f) in the detergent composition is preferably 2 to 10% by weight.
- concentration in the composition is 10% by weight or more, the flammability can not be completely removed. If the content is less than 2% by weight, there is a problem that the pollutant decomposing force and weighting force are lowered.
- containing the f) component in an amount of 2 to 10% by weight it is possible to provide a composition having a stronger detergency against oil components.
- the present inventors have found that when the components f) and a), b), c), d), e), g) and h) It is found that stimulation and reaction are repetitively applied to pollutants of PCB and precision electronic parts which can not apply force, thereby promoting rapid decomposition and removal. In addition, when only a mixture of the above a), b), c), d), e), g) and h) is mixed, there is almost no weighting force closely related to the washing force. To 5 times, and the penetration and decomposition can be facilitated. For the weighting test, 0.1 g of a typical fluorine-based detergent manufacturer's product was dropped on the glass surface. As a result, the product M (product name: N-73DE) and the product A The composition of the component was 5.72 cm 2, which was confirmed to be improved to about 4.7 times.
- 2,5-Dibromo-4-Fluorotoluene (g) is an eco-azeotropic mixture. Since 2,5-dibromo-4-fluorotoluene is low in toxicity and excellent in economical efficiency, Material. As a result of the experiment, the properties of promoting the decomposition of the organic substances fixed in the electric and electronic communication equipments were confirmed.
- the concentration of g) in the detergent composition is preferably 0.5 to 4% by weight. If the concentration in the composition is more than 4% by weight, there may be a problem of material influences (deformation, etc.), and if the content is less than 0.5% by weight, the pollutant decomposing effect is lowered. That is, 0.5 to 4% by weight, it is possible to provide a composition having an enhanced decomposition ability to an oil component.
- the applied cleaning liquid accelerates the decomposition of contaminants in electric and precision electronic components .
- the molecular formula of the component is shown as C 7 H 5 Br 2 F.
- the concentration of the component h) in the detergent composition is preferably 15 to 28% by weight.
- the f) component is a relatively low-polarity compound, so that the decomposition ability to the oil component is lowered.
- the boiling point of 56 ° C is 40 to 50 seconds after the washing, There is a problem that it can not flow down sufficiently.
- the concentration is 15% by weight or less, the stabilization can not be achieved when the components f) and a), b), c), d), e) and g) There is a problem that it is difficult to maintain quality at the time.
- the component h) is prepared by reacting 1,1,2,2,5,5,5-heptafluoro-3-oxapentane with 1,1,2,2,5,5,5-heptafluoro-3-oxapentane , And the molecular formula is represented by C 4 H 3 F 7 O.
- the detergent composition may be applied to the contact of conductive dust or dust or other conductors such as spark, arc and corona of a relay or a magnet switch, Defects due to structural defects during the manufacturing process of the equipment. Short circuit, short circuit, ground faults, short circuit, insulation degradation, and tracking (for example, inadequate installation, poor handling, poor handling of electrical equipment, (Fire) caused by fire, electric shock, fire, explosion, fire, electric shock, sparking when the switch is turned on / off, insulation breakdown, spark, static electricity, lightning, Because it can evolve early, it can function as a portable fire extinguisher.
- conductive dust or dust or other conductors such as spark, arc and corona of a relay or a magnet switch
- the filler used for cleaning agent is an important quality factor. For example, when filling a portable container with a cleaning liquid to clean a CPU of a computer to which power is supplied, the CPU generates a lot of heat while performing fast calculation and processing. Therefore, there is a reason that a cooling fan or a heat sink is installed.
- HCFC-22 with a boiling point of 40.82 ° C whose use is regulated by the Montreal Protocol in 1987, causes quality problems of condensation and freezing, which is not a desirable filling gas for the purpose.
- CO 2 carbon dioxide
- the boiling point is -78.5 ° C., and the temperature is dripped while the liquefied carbon dioxide gas is vaporized in the injection nozzle, thereby producing dry ice which is a solid carbon dioxide gas. Since the dry ice is moisture, the circuit can be short-circuited.
- HFC 1,1,1,2-tetrafluoroethane
- the filler is a mixture of 1,1,1,2-Tetrafluoroethane (HFC) having a boiling point of -26.15 DEG C, 50 to 55 wt% of a detergent composition, CO 2 filled gas having a boiling point of -78.5 DEG C, Weight% can be mixed and filled.
- HFC 1,1,1,2-Tetrafluoroethane
- the composition of the cleaning agent composition and the filling gas and mixing ratio can be optimized so that the operator does not have difficulty in breathing.
- the boiling point of the cleaning liquid is set to be 70 ° C to 90 ° C, Min) is preferably maintained for maintaining a stable quality.
- the present invention provides a detergent composition of a material which is free of flammability, optimizes the evaporation time after cleaning, and is environmentally safe.
- FIG. 1 is a device configuration diagram schematically showing a cleaning apparatus according to a preferred embodiment of the present invention.
- FIG. 1 is a device configuration diagram schematically showing a cleaning apparatus according to a preferred embodiment of the present invention.
- the cleaning apparatus includes a filling container 10 having a cleaning agent composition according to the present invention, which is filled with a filling agent and stored, and injecting means 110 for injecting the filled cleaning agent, And adsorbing means 20 for absorbing the detergent composition which is discharged including dissolved dust and contaminants.
- the filling container 10 may be a storage container capable of spraying the filled and stored detergent composition.
- the filling container 10 may be made of steel plate (SPCC) or stainless steel, but is not limited thereto, and may be made of any material capable of withstanding high pressure spraying without causing a physicochemical reaction with the detergent composition Any kind of container having durability is possible.
- SPCC steel plate
- stainless steel any material capable of withstanding high pressure spraying without causing a physicochemical reaction with the detergent composition Any kind of container having durability is possible.
- the spraying means 110 for spraying the detergent composition may be mounted on the discharge port of the filling container 10 so that the detergent composition may be sprayed through a high-pressure spraying valve having a spraying pressure of at least 5.2 kg / cm 2, It is very effective to decompose pollutants that penetrate deeply into electronic devices and to quickly discharge them.
- the specific structure of the injection means 110 for high-pressure injection is disclosed in the prior art No. 10-0776770 of the inventor of the present invention, and is a part deviating from the feature of the present invention, so a detailed description thereof will be omitted.
- the absorbing means 20 may be composed of a disposable absorbent 30 for absorbing the detergent composition which is sprayed on the object and includes the dissolved dust and contaminants.
- the detergent composition discharged from the object is not re-
- the nonwoven fabric layer 31 absorbing the detergent composition and the vinyl layer 32 coated on the opposite side of the nonwoven fabric to which the detergent is absorbed may be integrally formed so as to be absorbed and removed by the nonwoven fabric 30.
- the adsorbent 30 has a protective role to effectively remove the detergent composition to be discharged and to prevent contamination of other parts while proceeding with dust and contaminant removal work for a part of the object.
- FIG. 2 is a schematic view illustrating a foreign matter removing method using a detergent composition according to a preferred embodiment of the present invention.
- the method for removing foreign matter using the detergent composition according to the present invention includes a pre-cleaning step of filling a container with a detergent composition to prepare a filling container, a step of spraying the filled detergent composition onto an object to remove foreign matter such as dust or contaminants, And a step of dissolving the foreign matter and absorbing the detergent composition discharged therefrom and the dust contained in the detergent composition by the absorption means.
- the step of spraying the filled detergent composition onto an object to remove foreign matter is a step of spraying the detergent composition onto the object so that the detergent composition dissolves dust and contaminants.
- the cleaning agent composition is sprayed at a spraying pressure of at least 5.2 kg / cm 2
- the present invention is not limited to the electric safety distance regulation, the cleaning liquid can be discharged outside the high pressure of 90 cm, And due to the high pressure, the detergent composition can penetrate deeply into the complex structure of the object, and dust and contaminants can be easily removed.
- the spraying means used when the detergent composition is sprayed at a high pressure and applied to an object may preferably employ the high pressure spraying device of Patent No. 10-0802394 of the present inventor.
- the step of absorbing the detergent composition dissolving foreign matter such as dust and pollutants and the dust contained in the detergent composition into the adsorbent absorbs the dust and contaminants into the structure of the object, And the adsorbent is discharged at an appropriate position so that the detergent composition discharged from the object is not re-introduced but absorbed into the adsorbent as shown in Fig.
- the detergent composition for dust removal according to the present invention decomposes various types of dust, contaminants (oil components, etc.) without forming a flocculating material, and therefore, when sprayed on electric and electronic communication equipment, All of the material can be decomposed and discharged to the outside.
- Table 1 shows the results of evaluation of spark and spark ignition according to the flash point of a commercially available BTS-Solv (product name). It can be seen that the conventional BTS-Solv is ignited at the spark ignition test regardless of the flash point at 66 ° C and 100 ° C.
- the flammability test of the present invention was conducted to evaluate the risk of fire associated with arcing, sparking, and corona occurring during operation of relays and magnet switches in electrical and electronic communication equipment operated in the field.
- inventive compositions of the above examples were found not to be flammable below 250 ° C as a result of the tests at the Korea Fire Institute (KS M ISO 2592: 2007 / Cleveland Open Test Method).
- Electricity switchboard # 2 was taken from a 1MW SMA inverter operated for 6 years as a solar power plant.
- C The computer has been used for six years in the office desktop.
- the elevator has been operating for 20 years in Hyundai, Toshiba, and Otis, and
- Waste oil was taken from the automobile plant.
- the detergency evaluation was performed by visual inspection to determine the degree of decomposition for 30 seconds by adding contaminants to a test tube containing 10 g of the cleaning liquid prepared by collecting contaminants. g, and the degree of evaporation was visually confirmed.
- Example 1 was confirmed to be unsatisfactory ( ⁇ ) in both of the evaluation of decomposition ability of residues and the residue of contamination of the switchboard # 1, the switchboard # 2, the computer, the elevator and the waste oil.
- Example 2 showed that the decomposition of computer and waste oil was excellent ( ⁇ ) and that of residue was good ( ⁇ ). However, decomposition power of the switchboard # 1, the switchboard # 2 and the elevator was usually ( ⁇ ) .
- Example 3 was excellent (?) In the power distributing board # 1, the switchboard # 2, the computer, the elevator and the waste oil decomposition power, and was particularly evaluated as a cleaning agent suitable for development purposes since there was almost no residue after cleaning.
- Example 4 was confirmed to have excellent decomposition power ( ⁇ ) in the switchboard # 2, computer and elevator, switchboard # 1, waste oil, and residue after cleaning ( ⁇ ).
- Example 5 It was also confirmed that the decomposition force was excellent ( ⁇ ) in the switchboard # 2, the computer and the elevator, the switchboard # 1, the waste oil was normal ( ⁇ ), and the residue evaluation after the washing was insufficient ( ⁇ ).
- Comparisons 1 were rated as good ( ⁇ ) in the evaluation of residue on the switchboard # 1, waste oil, and after cleaning, while the decomposition power was good ( ⁇ ) on the switchboard # 2, computer and elevator.
- Comparison 2 shows that the decomposition force was excellent ( ⁇ ) on the switchboard # 2, the computer and the elevator, the switchboard # 1, the normal oil ( ⁇ ), and the residue evaluation result after the washing were insufficient ( ⁇ ).
- the comparison 3 was confirmed to be insufficient in the switchboard # 1, the switchboard # 2, the elevator and the waste oil ( ⁇ ), and the normal ( ⁇ ) in the computer.
- BTS-Solv National Institute of Standards and Technology
- the detergent of the present invention is used for electric and electronic communication equipments supplied with electric power, it was sprayed for 5 seconds and then dried for 3 minutes and then repeated 50 times.
- a) Polycarbonate used in Examples 1, 2 and 4 such as TV Case, Camera, Phone, Bolt, Clock, Terminal block and MCCB distribution panel, and Polypropylene used in Computer component, Connector, Bobbin, Coil form, cPolyethylene material used for phone film is estimated to have more than 50% probability of damaging.
- Example 3 In Example 3, it is indicated as ( ⁇ ) in bPolycarbonate used in TV Case, Camera, Phone, Bolt, Clock, Terminal block and MCCB distribution panel and bPolypropylen used in Computer component, Connector, Bobbin, Material safety was confirmed in accordance with the object of the present invention at the material of ⁇ or k.
- Embodiment 5 (b) Polypropylene and polyethylene used for a polycarbonate, a computer component, a connector, a bobbin, and a coil form used in a TV case, a camera, a telephone, a bolt, a watch, a terminal block and an MCCB distribution board.
- ⁇ the material safety in accordance with the object of the present invention was normal ( ⁇ ) and other materials of c.
- problems such as deformation, discoloration and hardening of the resin stream were expected to be more than 50%.
- Example 3 the results of the evaluations of Example 3 and Example 5 are compared with each other in terms of material safety, but it is preferable to use Example 3 as a result of evaluating the cleaning power and the residue after cleaning.
- the inverter set with the electronic parts mounted on the semiconductor such as the semiconductors was sprayed for 3 to 5 seconds and then dried for 3 minutes repeatedly for 50 times.
- the specific electronic parts were subjected to deformation, discoloration, , Hardening, breakage, etc. are shown in [Table 5].
- the above 50 injection test is a 25 year evaluation standard when it is washed twice a year.
- Filling gas was made by 1,1,1,2-Tetrafluoroethane (HFC) alone having a boiling point of 26.3 ° C.
- the total weight% cleaning agent composition was mixed with 45% of filler gas and 55% fill gas.
- a high-pressure injection valve with an injection pressure of 5.2 kg / cm 2 was sprayed to the object to be cleaned for 10 seconds, and 1.7 to 2.5 kg / cm 2 was sprayed for 20 seconds, and the cleaning satisfaction was evaluated.
- Korean Patent No. 10-1451255 which is a prior patent of the inventor of the present invention, includes a large-capacity cleaning fluid injection device including an air compressor and a water-removing filter to clean a 22,900V special piezoelectric switchboard which is a cleaning liquid injection device. It has the spraying pressure of 7 ⁇ 9.9kg / cm 2 and it has the advantage of working efficiency by using safety equipment such as spray gun, insulated gloves, insulation, facial protector,
- the detergent composition has been found to be suitable as a detergent for contaminants such as dust and dust, which cause failure of electrical and electronic telecommunication equipment.
- the flash point should be "None".
- the conventional BTS-Solv had a flash point of 66 ° C, and the time required for spraying the cleaning agent to remove dust and dust remained about 40 minutes after the cleaning solution remained between the gaps of the electric apparatus after cleaning .
- detergents for substances with flash points can cause explosive spread if associated with a fire accident.
- the inventive product was found not to be flammable below 250 ° C as a result of the KFAS (KS M ISO 2592: 2007 / Cleveland Open Test Method).
- the dielectric breakdown voltage should be above 35,000V.
- the product of the present invention was found to be safe at 56.300 V (kV / 2.5 mm) in the Korea Petroleum Institute's test standard (KS C IEC 60156).
- the dielectric breakdown voltage of air is 30 (kV / cm) DC and 21 (kV / cm) AC.
- the surface tension is preferably 12 to 25 dyne / cm.
- the reason is that if the surface tension is larger than 25 dyne / cm, the penetrating ability to the contaminants is weak and the ability to capture and disassemble the dust accumulated on the circuit board or the electric equipment is deteriorated, and the cleaning liquid and the dust are separated.
- water has a large surface tension of 72 dyne / cm at 25 ° C, benzene is about 29 dyne / cm, and methanol is 22.6 dyne / cm.
- the greater the surface tension the greater the attractive force between the molecules, and thus it takes much time to evaporate.
- the product of the present invention is 14.9 (10-3 N / m) in the test standard (KS M 2525) of the Korea Petroleum Institute. That is, 14.9 dyne / cm.
- the density was found to be 1.29 (g / m3) in the Korea Petroleum Institute 's test standard (KS M ISO 12185).
- a KB value of 60 to 85 is appropriate.
- PCB cards equipped with electronic devices can not apply physical force when removing contaminants such as dust and dust, and therefore, they can only be relied on the detergency of the cleaning agent.
- a value of 30 or less was considered considering evaporation for 40 minutes after the spraying of the washing liquid.
- KB value 60 to 85 was set in consideration of the fact that the washing solution of the present invention evaporates within 3 minutes after spraying.
- KB Value 85 or more can damage precision electronic parts, resin, and plastic parts, such as deformation, discoloration, and hardening (corrosion), and KB Value 60 or less is insufficient for the purpose of the present invention.
- petroleum based on Toluene 105 is about 27 to 45, and percro ethylene is 90.
- FBP is suitable for achieving the purpose at 70 ⁇ 80 °C.
- the reason is that when the cleaning liquid is sprayed on the electric control panel or the like, the dust particles must be caught and decomposed for at least 60 seconds to 90 seconds before the decomposed contaminants accumulate in the gap between the electronic components, have. If the FBP is as low as 70 ⁇ or less, the removal of contaminants may be insufficient and the contaminants may accumulate in the gaps between the electronic components, which is not desirable as a desired cleaning agent.
- the cleaning agent of the present invention is sprayed in a temperature of 24 ⁇ and a humidity of 70% in a) a first stage;
- the end point where penetration and decomposition are finished is set to about 1 second to 60 seconds, and b) the second step;
- the time of evaporation of the residue of the applied cleaning agent is from 60 seconds to 120 seconds, and it also evaporates within a maximum of 3 minutes between gaps where air contact is difficult. This minimizes the temperature change of the electronic component due to rapid evaporation heat, .
- the cleaning agent of the present invention minimizes recontamination even in the case where dust and dust are continuously generated, because it is possible to evaporate within a maximum of 3 minutes even in the domestic and Southeast Asian climates, and also relieves the operator's psychological anxiety .
- FBP was identified at 74.4 °C in Korea Petroleum Authority's test standard (ASTM D86-16a).
- the test standard shall be KS C 2101 or the same conditions.
- the detergent composition of the present invention evaporated within 140 hours at a test time of 140 ° C / 4 hr, so that the measurement was impossible. As a result of repeating, it was confirmed that there was no corrosion.
- the aniline point is preferably 55 to 65 ° C. Dust accumulated in electrical and electronic communication equipment is combined with organic molecules and has properties similar to oil. The scale for efficiently decomposing oil components is indicated by the aniline point. The smaller the value, the more melted.
- the aniline point of the volatile aromatic hydrocarbon is as low as about 50 ° C.
- the cleaning liquid was maintained at 84 ° C. in consideration of the evaporation for 40 minutes after the cleaning liquid was sprayed.
- the cleaning liquid of the present invention was strengthened with a faster decomposition force because it evaporates within 3 minutes after the spraying.
- the inventive product was found to be superior to the Korean Petroleum Institute of Korea (KS M 2053) at 60.1 °C for decomposition of organic matter.
- the filling gas is preferably mixed with 1,1,1,2-tetrafluoroethane (HFC) alone or mixed with CO 2 .
- HFC Hexafluoroethane having a boiling point of -26.15 DEG C, 50 to 55 wt% of a detergent composition, a boiling point of -78.5 DEG C CO 2 filling gas and 3 to 5 wt% of a detergent composition % Can be mixed and filled.
- CO 2 carbon dioxide
- the ratio with the detergent composition should not exceed 8% by weight. The reason is that more than 8% by weight can cause dyspnea to the worker.
- CO 2 has a boiling point of -78.5 ° C, and the temperature thereof plunges while the liquefied carbon dioxide gas is vaporized at the injection nozzle to generate dry carbon dioxide, which is a solid carbon dioxide gas.
- the dry acid can short circuit the circuit by moisture, absorbs much heat until it becomes gaseous carbon dioxide gas, and if it takes a lot of heat instantaneously from electronic parts such as semiconductor, it may cause malfunction and malfunction have.
- the spraying power of the cleaning apparatus is preferably 5.2 kg / cm 2 .
- the reason for this is that, if only the cleaning force by the strengthening of the cleaning component is pursued, the risk of the human body and the environment increases. Therefore, the high-pressure spraying device of 5.2 kg / cm 2 of the present inventor's patent No. 10-0776770 has a cleaning efficiency of 50% or more and an economical use of the cleaning agent as the cleaning liquid rapidly supports infiltration, There is also an effect to support.
- general cleaning products are not problematic because they are used for physically wiping off the pollutant, but the spraying power is 1.5 to 2.5 kg / cm 2 . Since the present invention uses electric devices within 35 kV as working objects, it is necessary to use a high-pressure spraying force in view of the necessity of working by securing a safety distance of 90 cm or more in case of active work of the Korea Electrical Safety Corporation.
- the detergent composition of the present invention is constituted by a component having no flammability
- the detergent composition of the present invention has a digestive function when it is sprayed when a small-sized fire occurs due to electrical defects in the process of removing contaminants of electric and electronic communication equipment to which power is applied.
- the spray power of 5.2 kg / cm is also effective for fire evolution.
- the detergent composition should not affect any of the electronic components a) semiconductor, b) capacitor, and c) plastic (resin).
- the fundamental reason for evaluating the influence of such electronic components is that the cleaning is aimed at the safety of the equipment through the removal of the foreign materials, so that there is a problem that the material is damaged in the cleaning process, It can not be said that it can be used as a cleaner.
- the evaporation time of the cleaning agent of the present invention is set to 3 minutes or less, it is determined in consideration of the above-mentioned criteria because it is used for a device including a capacitor and a semiconductor and precision electronic parts.
- the detergent composition according to the present invention has no flammability and ensures electrical insulation of 56.3 Kv, which is generated during operation of relays and magnet switches during the removal of contaminants such as dust and dust in electrical and electronic communication equipment without interrupting the pressurized power supply. It is a very useful invention for the electric and electronic communication equipment industry because there is no danger of flammable fire accident connected with arc, spark and corona, and it has an appropriate evaporation power within 3 minutes after cleaning to prevent re-contamination.
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Abstract
Description
Claims (14)
- 전력이 공급중인 전기 및 전자통신장비에 화재발생의 위험 없이 사용 가능한 세정제 조성물로서;하기 a) 내지 h) 성분을 포함하는 것을 특징으로 하는 세정제 조성물:a) 트랜스-1,2-디클로로에텐 (trans-1,2-dichloroethene)b) 1,1,1,2,2,3,3,4,4-노나플루오로-4-메톡시부탄 (1,1,1,2,2,3,3,4,4-Nonafluoro-4-Methoxybutane) 1 내지 4중량%,c) 테트라플루오로에텐-퍼플루오로프로필비닐에테르 공중합체 (tetrafluoroethene - perfluoropropylvinylether copolymer) 1 내지 4중량%,d) 1,1,1,2,2,3,4,5,5,5-데카플루오로펜탄 (1,1,1,2,2,3,4,5,5,5-Decafluoropentane) 3 내지 8중량%,e) 탄소원자수 5~18의 퍼플루오로알칸 화합물 (C5-18 perfluoroalkane) 5 내지 10중량%,f) 탄화수소와 리모넨의 혼합물g) 2,5-디브로모-4-플루오로톨루엔 (2,5-Dibromo-4-Fluorotoluene)h) 1,1,2,2-테트라플루오로에틸 2,2,2-트리플루오로에틸 에테르 (1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether)
- 제 1항에 있어서,상기 a) 트랜스-1,2-디클로로에텐 50 내지 70중량%,상기 g) 2,5-디브로모-4-플루오로톨루엔 0.5 내지 4중량%, 및상기 h) 1,1,2,2-테트라플루오로에틸 2,2,2-트리플루오로에틸 에테르 15 내지 28중량%를 포함하는 것을 특징으로 하는 세정제 조성물.
- 제 1항에 있어서,상기 f) 탄화수소와 리모넨의 혼합물 2 내지 10중량%를 포함하는 것을 특징으로 하는 세정제 조성물.
- 제 1항에 있어서,상기 e) 탄소원자수 5~18의 퍼플루오로알칸 화합물은, 퍼플루오로데칸, 퍼플루오로옥탄, 퍼플루오로헵탄, 퍼플루오로헥산, 및 퍼플루오로펜탄 중에서 선택되는 것을 특징으로 하는 세정제 조성물.
- 제 1항에 있어서,상기 f) 탄화수소와 리모넨의 혼합물은, 탄화수소 50 내지 70중량% 및 리모넨 10 내지 25중량%를 포함하는 혼합물인 것을 특징으로 하는 세정제 조성물.
- 제 1항에 있어서,(가) 20 ~ 25℃의 상온에서 상기 b), 상기 c), 상기 d), 및 상기 e)를 교반하여 혼합하는 공정;(나) 상기 (가) 공정과는 별도로 상기 a), 상기 f), 및 상기 g)를 교반하여 혼합하는 공정; 및(다) 상기 h)를 첨가하여 상기 (가) 공정에서 얻은 혼합물과 상기 (나) 공정에서 얻은 혼합물을 더욱 혼합하는 공정에 의해 분리된 경계면이 없는 안정적인 물성으로 조성되는 것을 특징으로 하는 세정제 조성물.
- 제 1항에 있어서,상기 세정제 조성물은민감한 정밀전자부품으로 구성되어 있으며, 먼지오염으로 인한 사고가 잦고, 먼지제거가 쉽지 않은 대표적인 전기 및 전자통신장비인 Inverter, UPS, PLC, SCADA, LCU 장비의 세정 시 릴레이 및 마그네트 스위치가 작동 중에 발생하는 스파크, 아크, 코로나에 연계한 화재발생이 없고, 오염물질 분해 및 제거, 증발까지 최대 3분 이내 완료할 수 있는 것을 특징으로 하는 세정제 조성물.
- 제 1항에 있어서,상기 세정제 조성물은35,000V이내의 공급중인 전력을 차단하지 않은 상태에서 전력공급용에 사용되는 지상개폐기, 지중개폐기 내 원격제어장치(FRTU), 변전소 전기Panel 및 텔레콤 룸(Telecom Room), 발전소 내 Inverter, 무정전 전원공급장치(UPS), 전력선 통신(PLC), 원격제어 감시시스템(SCADA), 부하제어장치(LCU), Server, 승강기의 제어용 Inverter, IDC센터 내 UPS, Server, 통신기지국 내 디지털 광중계기 및 Server, 도로교통장비 내 Hi-Pass, TCS, VDS 제어기, 군통신 내 Sever, 공공시설 및 산업시설 내 전기 Panel 중 선택된 하나의 장비에 오염된 먼지를 안전하고 효과적으로 제거하는 것을 특징으로 하는 세정제 조성물.
- 전력이 공급중인 전기 및 전자통신장비에 화재발생의 위험 없이 사용 가능한 세정제 조성물을 이물질로 오염된 대상물에 분사하여 세정하는 세정 장치로서;제 1항 내지 제 8항 중 선택된 어느 하나의 세정제 조성물을 충진제를 통해 충진하여 저장하고 충진된 세정제 조성물을 분사하는 분사하는 분사수단을 구비한 충진 용기를 포함하는 것을 특징으로 하는 세정 장치.
- 제 9항에 있어서,상기 분사수단은상기 세정제 조성물을 적어도 분사압력 5.2kg/㎠으로 분사하는 것을 특징으로 하는 세정 장치.
- 제 9항에 있어서,대상물에 분사되어 용해된 이물질을 포함하여 배출되는 세정제 조성물을 흡수하는 흡착수단을 더 포함하는 것을 특징으로 하는 세정 장치.
- 제 9항에 있어서,상기 충진제는 1,1,1,2-테트라플루오로에탄 (1,1,1,2-tetrafluoroethane) 또는 1,1,1,2-테트라플루오로에탄과 이산화탄소 (CO 2)의 혼합물인 것을 특징으로 하는 세정 장치.
- 제 12항에 있어서,상기 충진제는비점이 -26.15℃인 1,1,1,2-Tetrafluoroethane(HFC)와 세정제 조성물 50 내지 55 중량%, 비점이 -78.5℃ CO2 충진 가스와 세정제 조성물 3 내지 5 중량%을 혼합 충진하여 -40℃ 급냉에서 발생하는 반도체의 저온버그 및 드라이아이스에 의한 결로, 결빙이 없고, 기화에 의한 열량 흡수로 반도체 등 전자부품에서 순간 많은 열을 빼앗아 냉각시켜 기능 저하에 의한 오작동 고장이 없으며, 작업자에게 호흡 곤란 없도록 세정제 조성물과 충진 가스와 혼합비 조성을 최적화하는 것을 특징으로 하는 세정 장치.
- 제 12항에 있어서,상기 세정제 조성물은인화점이 없으며, 상기 세정 장치는 적어도 분사압력 5.2kg/㎠으로 분사되므로 화재 발생시 초기 진화를 위한 휴대용 소화기로 사용 가능한 것을 특징으로 하는 세정 장치.
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