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Halogenated hydrocarbon combined solvent containing octafluoropentyl olefin ether and application of halogenated hydrocarbon combined solvent

A technology of octafluoropentyl olefin ether and halogenated hydrocarbon, which is applied in the field of halogenated hydrocarbon combination solvent, can solve the problems of inability to meet environmental protection requirements, high toxicity and GWP value, poor safety, etc., and achieves strong cleaning, dissolution, degreasing and decontamination. Ability, low production cost, high solvency effect

Active Publication Date: 2019-05-03
SHANGHAI RICHEM ENVIROTEC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The halogenated hydrocarbon solvents in the prior art are used as cleaning agents in the fields of electronic cleaning, precision machining, etc., have toxicity and high GWP value, are flammable, have poor safety, and cannot meet environmental protection requirements

Method used

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  • Halogenated hydrocarbon combined solvent containing octafluoropentyl olefin ether and application of halogenated hydrocarbon combined solvent
  • Halogenated hydrocarbon combined solvent containing octafluoropentyl olefin ether and application of halogenated hydrocarbon combined solvent
  • Halogenated hydrocarbon combined solvent containing octafluoropentyl olefin ether and application of halogenated hydrocarbon combined solvent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Weigh 80 grams of trans-1,2-dichloroethylene, 10 grams of octafluoropentyl olefin ether, 15 grams of 1,1,2,3,3,3-hexafluoropropyl-2,2,2-trifluoro Ethyl ether and 1 gram of fluoroalcohol, formulated as a halogenated hydrocarbon combination solvent used as an oil stain cleaning agent. The halogenated hydrocarbon combination solvent of above-mentioned preparation is carried out the experiment of parallel test to conventional mineral oil, POE synthetic oil and silicone oil according to the following steps:

[0015] a. Apply 68# mineral lubricating oil, RL68POE synthetic oil and DC360 silicone oil on the clean aluminum sheet, weigh it again, and record the weight of the clean aluminum sheet and the grease-coated aluminum sheet;

[0016] b. Submerge the aluminum sheet into a beaker filled with the above-mentioned halocarbon combination solvent prepared above, and soak for 3 minutes;

[0017] c. Place the aluminum sheet on top of the halogenated hydrocarbon combination solven...

Embodiment 2

[0025] Weigh 80 grams of trans-1,2-dichloroethylene, 10 grams of octafluoropentyl olefin ether, 20 grams of 1,1,2,3,3,3-hexafluoropropyl-2,2,2-trifluoro Ethyl ether, 1 g of fluoroalcohol, and 5 g of methanol were formulated as a halogenated hydrocarbon combination solvent for use as a flux remover. Use the halogenated hydrocarbon combination solvent prepared above to perform the rosin flux removal experiment on the PCBA connectors after reflow soldering according to the following steps, so as to meet the quality control requirements:

[0026] a. After reflow soldering, the PCBA is soaked in boiling solvent for 5 minutes, and then immersed in the second tank whose temperature is lower than the boiling point for a second cleaning for 5 minutes. It can be supplemented by ultrasonic, spraying or stirring to enhance the cleaning effect;

[0027] b. Take out the connector from the low-temperature tank, immerse in the steam area for steam bath washing for 2 minutes, and then condense...

Embodiment 3

[0030] The halogenated hydrocarbon combination solvent prepared in Example 1 or Example 2 is used to replace the HCFC-141B cleaning agent, and the experiment selects a PCB board with a very narrow pin line and an IC module, and completes it in the existing 141B ultrasonic vapor phase vapor phase equipment The effect test of two cleaning agents. Due to the difference in boiling point, the heating temperature needs to be adjusted to the boiling point of the halogenated hydrocarbon combined solvent prepared in Example 1 or Example 2 during the test. Experimental results show that the cleaning effect of the composition is better than that of 141B, and it can completely replace 141B. The 141B cleaning agent with a larger amount now belongs to hydrochlorofluorocarbons. According to the national plan, all cleaning purposes 141B will be eliminated in 2025, and the halogenated hydrocarbon combination solvent prepared in Example 1 or Example 2 and HCFC-141B cleaning It is suitable for ...

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Abstract

The invention discloses a halogenated hydrocarbon combined solvent containing octafluoropentyl olefin ether. The halogenated hydrocarbon combined solvent is characterized by being prepared from trans-1,2-dichloroethylene, octafluoropentyl olefin ether, 1,1,2,3,3,3-hexafluoropropyl 2,2,2-trifluoroethyl ether and a stabilizer according to the weight ratio of (0.1-98):(0.1-30):(0.1-98):(0.1-3). The combined solvent is mixed with an alcohol according to a volume ratio of 1:(0.001-0.05) to be used as a cleaning agent of electronic components and scaling powder, or is mixed with a propellant according to a volume ratio of 1:(0.1-0.3) in a spraying tank to be used as a cleaning agent for precise machining parts. Compared with the prior art, the combined solvent has relatively high cleaning and dissolving capacity and degreasing and decontaminating capability, and especially meets the surface decontamination and cleaning requirements of electronic components and machine processing parts. The raw materials are non-toxic, harmless and non-corrosive, the preparation process is simple, the environment is not polluted, production cost is low, and therefore the combined solvent is a high-efficiency cleaning agent with a high industrial application value.

Description

technical field [0001] The invention relates to the technical field of chemical cleaning agents, in particular to a halogenated hydrocarbon combination solvent containing octafluoropentyl olefin ether and an application thereof. Background technique [0002] Halogenated hydrocarbon solvents are widely used in electronic cleaning, precision machining and other fields, as precision cleaning agents, aerosol cans, thinners and other applications. Based on the current updated regulatory requirements, users expect to find an environmentally friendly alternative that not only meets environmental protection requirements, does not deplete ozone, has zero or nearly zero ODP value, and low greenhouse effect, but also meets the ever-increasing product density and function enhancement. technical requirements. As a substitute for CFCs, HCFCs, highly toxic chlorinated solvents, n-bromopropanes, and HFCs with high greenhouse effect GWP values. [0003] At present, although chlorinated sol...

Claims

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Application Information

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IPC IPC(8): C11D7/30C11D7/26C11D7/50C11D7/60
CPCC11D7/26C11D7/30C11D7/50
Inventor 刘向尧
Owner SHANGHAI RICHEM ENVIROTEC CO LTD
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