Leak hunting agent for an aircraft oxygen system and preparation method thereof

Abstract

The invention discloses a leak hunting agent for an aircraft oxygen system and a preparation method thereof, and the leak hunting agent for the aircraft oxygen system comprises the following components in percentage by mass: 0.2-0.3% of sodium myristoyl isethionate, 0.05-0.1% of tea saponin, 0.05-0.1% of a foam-stabilizing corrosion-inhibiting auxiliary agent and the balance of deionized water. The foam-stabilizing corrosion-inhibiting auxiliary agent has various functional groups such as alkenyl, acylamino, hydroxyl and =N-O groups, and the acylamino and the =N-O groups have hydrophilicity, so that the foam-stabilizing corrosion-inhibiting auxiliary agent has the foaming and foam-stabilizing effects of a surfactant, and the foam height and durability of the myristoyl sodium isethionate can be enhanced; long-chain alkenyl can be directionally adsorbed to the surface of metal to form a compact adsorption layer to protect the metal from being corroded, and can have a synergistic corrosion inhibition effect with tea saponin; the carbon black is equivalent to N-O to adsorb H+ in an aqueous solution, and part of the carbon black forms quaternary ammonium groups, so that the carbon black has a certain anti-mold effect, and the carbon black and tea saponin have a synergistic antibacterial effect to jointly ensure that a product is not deteriorated; in addition, the buffer effect of stable PH value is achieved.

Description

technical field [0001] The invention relates to the field of leak detection agent preparation, in particular to an aircraft oxygen system leak detection agent and a preparation method thereof. Background technique [0002] The oxygen system of an aircraft is the guarantee of life. The airtightness of the oxygen system needs to be checked before the flight to ensure flight safety. This requires a special leak detector to detect. Aircraft leak tester is a high-foam, low-residue, non-corrosive to aluminum alloy, carbon steel, copper and other metals. When in use, it is sprayed on the surface of the gas pipeline and judged by observing whether there are bubbles. Is there a leak. [0003] According to the regulations of the Civil Aviation Administration, the leak detection agent used on the aircraft must meet the technical requirements of the US military standard MIL-PRF-25567E. The technical requirements stipulate that the non-volatile matter of the leak detection agent should ...

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Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a leak detection agent for an aircraft oxygen system and a preparation method thereof, aiming at solving the problem of poor performance of the leak detection agent used on existing aircraft

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