CN111662792A - Halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene and application thereof - Google Patents
Halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene and application thereof Download PDFInfo
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- CN111662792A CN111662792A CN202010541163.6A CN202010541163A CN111662792A CN 111662792 A CN111662792 A CN 111662792A CN 202010541163 A CN202010541163 A CN 202010541163A CN 111662792 A CN111662792 A CN 111662792A
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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
- 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
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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
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/28—Organic compounds containing halogen
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
- C23G5/02809—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine
- C23G5/02825—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine containing hydrogen
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Abstract
The invention relates to the technical field of fluorine-containing cleaning agents, and provides a halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene, which comprises the following components in parts by mass: 3-90 parts of 1-chloro-2, 3, 3-trifluoropropene; 5-95 parts of trans-1, 2-dichloroethylene; 0.2-5 parts of methyl perfluoroheptylene ether. The invention utilizes the synergistic effect of the three substances to form an azeotrope or an approximate azeotrope, and the obtained combined solvent has the advantages of stability, no flash point, low toxicity, low corrosivity, good material compatibility, good dissolving and removing capability on pollutants, high volatilization and drying speed, zero ODP value (ozone depletion potential value) and extremely low GWP value (global warming potential value). The invention also provides application of the halogenated olefin combined solvent in cleaning agents, diluents and aerosols.
Description
Technical Field
The invention relates to the technical field of fluorine-containing cleaning agents, and particularly relates to a halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene and application thereof.
Background
The cleaning procedure is applied to the manufacturing links of electronic products such as semiconductor manufacturing procedures, electronic components, IGBT, PCBa and the like, the assembling link of optical components and precision mechanical elements and all the manufacturing and assembling links of precision mechanical elements. The cleaning process often involves solvents for removing flux, fine particles, process grease, wax, mold release agents, dust, and the like. Meanwhile, solvents are also used in the fields of coating carriers, dilution of glass anti-fingerprint coatings, coating of functional coatings of lenses, dilution of silicone oil of medical devices and the like. With the current regulatory requirements (e.g., the european union's F-gas regulations), the market is increasingly demanding solvents that are low in toxicity, environmentally friendly, compatible, non-flammable, and stable.
Chlorofluorocarbons (CFCs) and Hydrochlorofluorocarbons (HCFCs) have the advantage of being chemically stable as widely used solvents. But the atmospheric service life is long, the volatile gas reaches the troposphere and then diffuses to the stratosphere, and chlorine free radicals can be decomposed under the action of ultraviolet rays to destroy ozone. Fluorocarbon Solvents (PFCs) and Hydrofluorocarbon Solvents (HFCs) which are currently used as substitutes do not consume ozone because the components do not contain chlorine, but have high greenhouse effect.
In response to these problems, patent CN 103415652 provides azeotropic and azeotrope-like compositions of methyl perfluoroheptene ether and trans-1, 2-dichloroethylene, but the flash point is low and the safety is poor; patent CN108823007 provides a non-flammable combination solvent composed of trans-1, 2-dichloroethylene, methyl perfluoroheptylene ether, 1,2,3,3, 3-hexafluoropropyl-2, 2, 2-trifluoroethyl ether, but its dissolving power is too strong, and compatibility to electronic components and medical devices including partially sensitive plastic parts is poor.
Disclosure of Invention
In view of the above, the present invention aims to provide a halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene and applications thereof. The halogenated olefin combination solvent provided by the invention is stable, low in toxicity, free of flash point, strong in dissolubility and decontamination capability, good in material compatibility, zero in ODP value (ozone depletion potential value) and extremely low in GWP value (global warming potential value).
In order to achieve the purpose of the invention, the invention provides the following technical scheme:
the invention provides a halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene, which comprises the following components in parts by mass:
3-90 parts of 1-chloro-2, 3, 3-trifluoropropene;
5-95 parts of trans-1, 2-dichloroethylene;
0.2-5 parts of methyl perfluoroheptylene ether.
Preferably, the composition comprises the following components in parts by mass:
5-10 parts of 1-chloro-2, 3, 3-trifluoropropene;
85-95 parts of trans-1, 2-dichloroethylene;
4-5 parts of methyl perfluoroheptylene ether.
Preferably, the composition comprises the following components in parts by mass:
45-55 parts of 1-chloro-2, 3, 3-trifluoropropene;
45-55 parts of trans-1, 2-dichloroethylene;
2-3 parts of methyl perfluoroheptylene ether.
Preferably, the composition comprises the following components in parts by mass:
80-90 parts of 1-chloro-2, 3, 3-trifluoropropene;
10-20 parts of trans-1, 2-dichloroethylene;
0.5-1 part of methyl perfluoroheptylene ether.
Preferably, the 1-chloro-2, 3, 3-trifluoropropene is trans-1-chloro-2, 3, 3-trifluoropropene.
The invention provides application of the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene in cleaning agents, diluents and aerosols.
Preferably, the cleaning agent is used for degreasing metal parts, removing soldering flux of electronic components and sensitive plastic parts;
the diluent is a diluent for grease and/or silicone oil;
the aerosol is used for degreasing.
The invention provides a halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene, which comprises the following components in parts by mass: 3-90 parts of 1-chloro-2, 3, 3-trifluoropropene; 5-95 parts of trans-1, 2-dichloroethylene; 0.2-5 parts of methyl perfluoroheptylene ether. In the invention, the 1-chloro-2, 3, 3-trifluoropropene cleaning dissolving power is moderate, the flash point is avoided, and the wetting property and the material compatibility are good; trans-1, 2-dichloroethylene has strong dissolving power; the methyl perfluoroheptene ether has low surface tension, high wettability, incombustibility and strong removal capability of fine particles. The three substances have synergistic effect, can form an azeotrope or an approximate azeotrope, the obtained combined solvent is stable, has no flash point, low toxicity, low corrosivity, good material compatibility, good dissolving and removing capability on pollutants, high volatilization drying speed, zero ODP value (ozone depletion potential value), extremely low GWP value (global warming potential value), easily obtained raw materials and low cost. Meanwhile, the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene can adjust the mass fraction according to the difference of cleaning parts, balance the requirements of material compatibility and cleaning power, have no flash point, and maintain the azeotropic point or the approximate azeotropic point at about 48 ℃, so that the combined solvent has good wettability, wide application range and strong applicability due to the flexible and changeable combination. The example results show that the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene provided by the invention has a removal rate of more than 99% for mineral oil, POE synthetic oil and silicone oil, has a good removal effect for rosin soldering flux and has good compatibility with rubber and plastic part materials.
The invention also provides application of the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene in cleaning agents, diluents and aerosols. The results of the examples show that when the halogenated olefin combined solvent provided by the invention is used for a cleaning agent, the halogenated olefin combined solvent has good cleaning and removing effects on grease and soldering flux; when used as a diluent, the silicone oil has good dissolving and diluting effects on the silicone oil for medical instruments, and has good material compatibility; when the detergent is used for aerosol, the detergent has good decontamination effect.
Drawings
FIG. 1 is a microscopic picture of #1PCB before and after cleaning in application example 2;
FIG. 2 is a microscopic image of #2PCB board in application example 2 before and after cleaning.
Detailed Description
The invention provides a halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene, which comprises the following components in parts by mass:
3-90 parts of 1-chloro-2, 3, 3-trifluoropropene;
5-95 parts of trans-1, 2-dichloroethylene;
0.2-5 parts of methyl perfluoroheptylene ether.
Unless otherwise specified, the starting materials used in the present invention are commercially available.
The halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene provided by the invention comprises 3-90 parts of 1-chloro-2, 3, 3-trifluoropropene by mass. In the present invention, the 1-chloro-2, 3, 3-trifluoropropene is preferably trans-1-chloro-2, 3, 3-trifluoropropene; in the present invention, the purity of the trans-1-chloro-2, 3, 3-trifluoropropene is preferably not less than 95%, and it is inevitable that the trans-1-chloro-2, 3, 3-trifluoropropene contains cis-1-chloro-2, 3, 3-trifluoropropene impurities. In the invention, the 1-chloro-2, 3, 3-trifluoropropene has good cleaning dissolving power and wettability, good material compatibility and no flash point.
Based on the mass part of the 1-chloro-2, 3, 3-trifluoropropene, the halogenated olefin combined solvent containing the 1-chloro-2, 3, 3-trifluoropropene provided by the invention comprises 5-95 parts of trans-1, 2-dichloroethylene. In the present invention, the purity of the trans-1, 2-dichloroethylene is preferably not less than 99%. In the present invention, trans-1, 2-dichloroethylene has a strong dissolving power and can replace methylene chloride, trichloroethylene, tetrachloroethylene and n-bromopropane, but the flash point is low.
Based on the mass part of the 1-chloro-2, 3, 3-trifluoropropene, the halogenated olefin combination solvent containing the 1-chloro-2, 3, 3-trifluoropropene provided by the invention comprises 0.2-5 parts of methyl perfluoroheptylene ether. In the invention, the purity of the methyl perfluoroheptene ether is preferably more than or equal to 99%. In the invention, the methyl perfluoroheptylene ether has low surface tension, wetting property and incombustibility, and has strong capability of removing fine particles and good material compatibility.
The 1-chloro-2, 3, 3-trifluoropropene, the trans-1, 2-dichloroethylene and the methyl perfluoroheptylene ether are used as raw materials of the halogenated olefin combined solvent, the three substances have synergistic effect, an azeotrope or an approximate azeotrope can be formed, the boiling point of the azeotrope is about 48 ℃, the obtained combined solvent is stable, has no flash point, low toxicity, low corrosivity, good material compatibility, good dissolving and removing capability on pollutants, high volatilization and drying speed, zero ODP value (ozone depletion potential value) and extremely low GWP value (global warming potential value).
The halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene balances the material compatibility and cleaning power of sensitive materials, particularly meets the requirements of removing residues such as electronic components and soldering flux, removing machining oil stains and micro-particles of precision metal machining parts and dissolving silicone oil of medical equipment, has the advantages of easily available raw materials, low production cost and no environmental pollution, is suitable for the existing cleaning equipment, and has high industrial use value.
The invention preferably achieves different dissolving power and cleaning power by adjusting the mass components of 1-chloro-2, 3, 3-trifluoropropene, trans-1, 2-dichloroethylene and methyl perfluoroheptylene ether on the basis of no flash point so as to meet the requirements of different purposes. The degreasing and precision cleaning of metal workpieces require a solvent having a high dissolving power, and when the halogenated olefin combination solvent is used for metal degreasing and precision cleaning, the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene preferably comprises the following components in parts by mass:
5-10 parts of 1-chloro-2, 3, 3-trifluoropropene, preferably 6-8 parts;
85-95 parts of trans-1, 2-dichloroethylene, preferably 90 parts;
4-5 parts of methyl perfluoroheptylene ether, preferably 4.5 parts.
When the halogenated olefin combined solvent is used for cleaning the electronic component, the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene preferably comprises the following components in parts by mass:
45-55 parts of 1-chloro-2, 3, 3-trifluoropropene, preferably 50 parts;
45-55 parts of trans-1, 2-dichloroethylene, preferably 50 parts;
2-3 parts of methyl perfluoroheptylene ether, preferably 2.5 parts.
The cleaning and coating of the sensitive plastic parts require good compatibility of solvents, and when the halogenated olefin combined solvent is used for cleaning and coating of the sensitive plastic parts, the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene preferably comprises the following components in parts by mass:
80-90 parts of 1-chloro-2, 3, 3-trifluoropropene, preferably 85 parts;
10-20 parts of trans-1, 2-dichloroethylene, preferably 15 parts;
0.5-1 part of methyl perfluoroheptylene ether.
In the present invention, the method for preparing the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene preferably comprises the steps of:
mixing 1-chloro-2, 3, 3-trifluoropropene, trans-1, 2-dichloroethylene and methyl perfluoroheptylene ether to obtain the halogenated olefin combined solvent containing the 1-chloro-2, 3, 3-trifluoropropene.
The invention does not require any particular mixing means, such as stirring, known to the person skilled in the art.
The invention provides application of the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene in cleaning agents, diluents and aerosols. In the invention, the cleaning agent is used for degreasing metal parts, removing soldering flux of electronic components and sensitive plastic parts. When the halogenated olefin combined solvent is used in a cleaning agent, the cleaning mode and the dosage of the halogenated olefin combined solvent are not particularly required, and the cleaning mode and the dosage which are well known to those skilled in the art can be used.
In a particular embodiment of the invention, the cleaning method preferably comprises the following steps:
firstly, soaking a device to be cleaned in the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene for two-step soaking cleaning, wherein the two-step soaking cleaning comprises boiling soaking cleaning and cold soaking cleaning which are sequentially performed, and the temperature of the cold soaking cleaning is preferably 30-35 ℃; and then placing the device subjected to cold soaking and cleaning above a halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene, which is heated to be boiling, for steam rinsing.
In the invention, the time of the boiling soaking cleaning and the time of the cold soaking cleaning are independent and preferably 3-10 minutes, and the time of the steam rinsing is preferably 3-10 minutes.
In the present invention, the diluent is preferably a diluent for fats and oils or silicone oil. When the halogenated olefin combined solvent is used as a diluent for oil and fat, the mass ratio of the halogenated olefin combined solvent to the oil and fat is preferably 10: 0.1 to 1; when used as a diluent for silicone oil, the mass ratio of the halogenated olefin combined solvent to silicone oil is preferably 10: 0.5 to 1.5.
In the present invention, the aerosol is preferably an aerosol for degreasing. When the halogenated olefin combined solvent is used for aerosol, 2,3,3, 3-tetrafluoropropene is preferably added as a propellant, and the mass ratio of the halogenated olefin combined solvent to the propellant is preferably 10: 1 to 2.
The halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene and the use thereof according to the present invention will be described in detail with reference to the following examples, which should not be construed as limiting the scope of the present invention.
Example 1
Weighing 300 g of 1-chloro-2, 3, 3-trifluoropropene, 4000 g of trans-1, 2-dichloroethylene and 160 g of methyl perfluoroheptylene ether, and mixing to prepare a halogenated olefin combined solvent containing the 1-chloro-2, 3, 3-trifluoropropene; wherein the 1-chloro-2, 3, 3-trifluoropropene is trans-1-chloro-2, 3, 3-trifluoropropene with the purity of 95%.
The flash point of the obtained halogenated olefin combination solvent was measured using standard flash point test method astm d56-05(2010) of a teger (Tag) closed cup tester, and it was found that the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene of the present invention has no flash point.
Application example 1
The halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene described in example 1 is used for cleaning aluminum sheet mineral oil, POE synthetic oil and silicone oil, and the specific method is as follows:
(1) weighing 6 clean aluminum sheets respectively, dividing the aluminum sheets into 3 groups, coating 32# mineral lubricating oil, RL32POE synthetic oil and DC360 silicone oil on each group of aluminum sheets respectively, weighing again, and recording the weights of the clean aluminum sheets and the grease-coated aluminum sheets in table 1;
(2) immersing the aluminum sheet coated with the grease into a beaker filled with the combined solvent of the embodiment 1, heating to boil, and soaking for 5 minutes;
(3) taking out the aluminum sheet, immersing the aluminum sheet in a beaker filled with the combined solvent in the embodiment 1, and soaking the aluminum sheet for 5 minutes at room temperature;
(4) taking out the soaked aluminum sheet, then placing the aluminum sheet above the combined solvent of the embodiment 1 which is heated to be boiled, and rinsing the aluminum sheet for 3 minutes by steam;
(4) after the steam rinse was completed, the soil was dried in air for 3 minutes, then weighed and the percentage of soil removed was calculated, and the results are shown in table 1.
TABLE 1 metallic grease cleaning Effect of halogenated olefin combination solvent obtained in example 1
As can be seen from Table 1, the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene provided by the invention has strong oil stain removal capability on common mineral oil, POE synthetic oil and silicone oil when being used for a metal cleaning agent, and is very effective in removing oil stains.
Example 2
3500 g of 1-chloro-2, 3, 3-trifluoropropene, 4000 g of trans-1, 2-dichloroethylene, 200 g of methyl perfluoroheptylene ether and 200 g of isopropanol are weighed and mixed to prepare the halogenated olefin combined solvent containing the 1-chloro-2, 3, 3-trifluoropropene, wherein the 1-chloro-2, 3, 3-trifluoropropene is the trans-1-chloro-2, 3, 3-trifluoropropene with the purity of 95%.
The flash point of the obtained halogenated olefin combination solvent was measured using standard flash point test method astm d56-05(2010) of a teger (Tag) closed cup tester, and it was found that the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene of the present invention has no flash point.
Application example 2
The halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene obtained in example 2 is used for removing the soldering flux, and the specific method is as follows:
(1) coating rosin scaling powder on the two PCBs, marking the two PCBs as #1 and #2, and soaking and cleaning the two PCBs in the boiled combined solvent of the embodiment 2 for 5 minutes;
(2) soaking the PCB after soaking and cleaning in the 35 ℃ combined solvent of the embodiment 2 for ultrasonic cleaning for 5 minutes, wherein the ultrasonic frequency is 40 kHz;
(3) the PCB after ultrasonic cleaning was placed over the boiling solvent of the combination of example 2, steam bath cleaned for 2 minutes in the steam zone, and then condensed and dried for 2 minutes at-10 ℃.
Performing electronic microscope 50 times microscopic observation on the PCB before and after cleaning, wherein a microscopic picture of #1PCB before cleaning is shown in (a) in FIG. 1, and a microscopic picture after cleaning is shown in (b) in FIG. 1; fig. 2 (a) shows a picture of a PCB before cleaning, and fig. 2 (b) shows a picture of a PCB after cleaning. As can be seen from FIGS. 1 and 2, the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene provided by the invention has good cleaning and removing effects on rosin soldering flux.
Example 3
800 g of 1-chloro-2, 3, 3-trifluoropropene, 150 g of trans-1, 2-dichloroethylene and 6 g of methyl perfluoroheptylene ether are weighed and mixed to prepare the halogenated olefin combined solvent containing the 1-chloro-2, 3, 3-trifluoropropene, wherein the 1-chloro-2, 3, 3-trifluoropropene is the trans-1-chloro-2, 3, 3-trifluoropropene with the purity of 95%.
The flash point of the obtained halogenated olefin combination solvent was measured using standard flash point test method astm d56-05(2010) of a teger (Tag) closed cup tester, and it was found that the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene of the present invention has no flash point.
Application example 3
The halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene obtained in example 3 is used as a silicone oil diluent for medical instruments, and the specific method is as follows:
adding 90 g of combined solvent into two 100mL transparent glass bottles respectively; dow Corning Silicone oil MDX4-4159 and Silicone oil SH200Fluid each 10 g were placed in a combination solvent bottle, shaken manually for 30 seconds, observed for dissolution, and allowed to stand for 4 days for delamination, and the results are shown in Table 2. Meanwhile, a group of currently commonly used 141B solvents is arranged to replace the combined solvent of the invention, and comparison is carried out under the same conditions.
TABLE 2 dilution Effect of the combination solvent of the present invention and 141B solvent on silicone oil
As can be seen from Table 2, the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene provided by the invention has good dilution effect on silicone oil for medical instruments, and can reach the dilution level of the conventional 141B solvent.
Example 4
800 g of 1-chloro-2, 3, 3-trifluoropropene, 100 g of trans-1, 2-dichloroethylene and 4 g of methyl perfluoroheptylene ether are weighed and mixed to prepare the halogenated olefin combined solvent containing the 1-chloro-2, 3, 3-trifluoropropene. Wherein the 1-chloro-2, 3, 3-trifluoropropene is trans-1-chloro-2, 3, 3-trifluoropropene with the purity of 95%.
The flash point of the obtained halogenated olefin combination solvent was measured using standard flash point test method astm d56-05(2010) of a teger (Tag) closed cup tester, and it was found that the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene of the present invention has no flash point.
Application example 4
Medical devices, such as puncture needles, indwelling needles and other devices, often involve a variety of different plastic rubber materials, and the diluent is required to meet the requirement of material compatibility. If the solvent has too strong dissolving power, the plastic rubber may swell and even crack, although the diluting power for the silicone oil may be good. The halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene obtained in example 4 is used for testing the compatibility of rubber and plastic part materials, and the specific method is as follows:
the catheter, the three-way valve, the blood collection needle holder, the drip needle holder, and the three-way stopcock shaft of the medical device were immersed in the halogenated olefin combined solvent described in example 4, and the changes of the medical device were observed, and the results are shown in table 3.
TABLE 3 test results of compatibility of the combination solvent of the present invention with rubber-plastic part materials
As can be seen from Table 3, the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene provided by the invention has good compatibility with rubber and plastic materials of medical devices.
Example 5
500 g of 1-chloro-2, 3, 3-trifluoropropene, 500 g of trans-1, 2-dichloroethylene and 20 g of methyl perfluoroheptylene ether are weighed and mixed to prepare the halogenated olefin combined solvent containing the 1-chloro-2, 3, 3-trifluoropropene, wherein the 1-chloro-2, 3, 3-trifluoropropene is the trans-1-chloro-2, 3, 3-trifluoropropene with the purity of 95%.
The flash point of the obtained halogenated olefin combination solvent was measured using standard flash point test method astm d56-05(2010) of a teger (Tag) closed cup tester, and it was found that the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene of the present invention has no flash point.
Application example 5
The halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene obtained in example 5 was divided into 3 parts and filled in 3 pressure-bearing tanks, 35 g of 2,3,3, 3-tetrafluoropropene was added to the cold trap of the pressure-bearing tank as propellant, and the mixture was packaged to make a spray tank.
The oil stain removal effect of the halogenated olefin combined solvent spray containing 1-chloro-2, 3, 3-trifluoropropene is tested by the following specific method:
(1) weighing two clean aluminum sheets, coating 32# mineral lubricating oil and RL32POE polyester synthetic oil on the aluminum sheets respectively, and weighing again;
(2) the aluminum sheets were faced at a distance of 15cm, spray-cleaned with a spray can against the oiled aluminum sheets, dried by evaporation in air, weighed and the percentage of contaminants removed was calculated, and the results are shown in table 4.
Table 4 oil stain removal effect of the combination solvent aerosol of the present invention
| Oil name | 32# mineral oil | RL32POE oil |
| Clean aluminum sheet weight (g) | 4.7862 | 4.9011 |
| Weight (g) of aluminum sheet after oil stain coating | 4.8105 | 4.9305 |
| Weight (g) of aluminum flake after washing | 4.7865 | 4.9014 |
| Oil stain removal Rate (%) | 98.77 | 98.98 |
As can be seen from Table 4, the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene provided by the invention has good decontamination effect when used as a spray, and has strong decontamination capability on common mineral oil and POE synthetic oil.
Comparative example 1
Example 3 of patent "CN 108823007A a non-flammable halogenated hydrocarbon composition detergent containing trifluoroethyl hexafluoropropyl ether" was used as comparative example 1. The combined solvent in the comparative example 1 comprises the following components in percentage by mass:
trans-1, 2-dichloroethylene 95%;
4% of methyl perfluoroheptylene ether;
1% of 1,1,2,3,3, 3-hexafluoropropyl-2, 2, 2-trifluoroether.
This combined solvent was added to a beaker and heated to 40 ℃, and a polished and precleaned stainless steel (type 316L) coupon having a surface size of 30 x 10mm was weighed. A small amount of lubricating oil used in the aeronautical industry was applied with a cotton swab on the surface of these test pieces, which were weighed again. The test piece with the lubricating oil was immersed in the solvent composition kept at 40 ℃ and washed with ultrasonic waves for 5 minutes. The coupon was removed from the solvent, allowed to air dry for 1 minute, and weighed for the last time to determine the percentage of lubricant removed. The experiment was repeated using a medium viscosity dimethicone as the soil. The decontamination rate and the average decontamination rate were calculated and the results are shown in table 5.
The above operation was repeated using the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene of example 1, and the results obtained are shown in Table 5.
TABLE 5 cleaning Performance of the combination solvents of example 1 and comparative example 1
As is apparent from Table 5, the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene according to the present invention has a good cleaning ability as compared with the combination solvent of comparative example 1.
The solvent composition of comparative example 1 was used for the compatibility test of the rubber part material in the same manner as in application example 4, and the results are shown in Table 6.
TABLE 6 test results of compatibility of the composite solvent of comparative example 1 with the rubber and plastic material
As can be seen from the comparison between Table 3 and Table 6, the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene of the present invention has good compatibility with the rubber and plastic material of medical devices, compared with the combined solvent of comparative example 1.
The embodiment and the application example show that the halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene provided by the invention has good cleaning capability and good removal effect on oil stains and soldering flux; when used as a diluent, the product has good dilution effect on silicone oil and good compatibility with rubber and plastic materials of medical equipment; has good decontamination effect when used as aerosol.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A halogenated olefin combined solvent containing 1-chloro-2, 3, 3-trifluoropropene comprises the following components in parts by mass:
3-90 parts of 1-chloro-2, 3, 3-trifluoropropene;
5-95 parts of trans-1, 2-dichloroethylene;
0.2-5 parts of methyl perfluoroheptylene ether.
2. The halogenated olefin combination solvent according to claim 1, characterized by comprising the following components in parts by mass:
5-10 parts of 1-chloro-2, 3, 3-trifluoropropene;
85-95 parts of trans-1, 2-dichloroethylene;
4-5 parts of methyl perfluoroheptylene ether.
3. The halogenated olefin combination solvent according to claim 1, characterized by comprising the following components in parts by mass:
45-55 parts of 1-chloro-2, 3, 3-trifluoropropene;
45-55 parts of trans-1, 2-dichloroethylene;
2-3 parts of methyl perfluoroheptylene ether.
4. The halogenated olefin combination solvent according to claim 1, characterized by comprising the following components in parts by mass:
80-90 parts of 1-chloro-2, 3, 3-trifluoropropene;
10-20 parts of trans-1, 2-dichloroethylene;
0.5-1 part of methyl perfluoroheptylene ether.
5. The halogenated olefin combination solvent according to any one of claims 1 to 4, wherein the 1-chloro-2, 3, 3-trifluoropropene is trans-1-chloro-2, 3, 3-trifluoropropene.
6. Use of the halogenated olefin combination solvent containing 1-chloro-2, 3, 3-trifluoropropene of any one of claims 1 to 5 in cleaning agents, diluents and aerosols.
7. The application of the cleaning agent as claimed in claim 6, wherein the cleaning agent is used for degreasing metal parts, removing soldering flux of electronic components and sensitive plastic parts;
the diluent is a diluent for grease and/or silicone oil;
the aerosol is used for degreasing.
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