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Determination method for migration components in nitrate ester plasticized polyether (NEPE) propellant bonding system

A technology of plasticized polyether and determination method, which is applied in the direction of measuring device, material separation, and analysis of materials, etc., can solve the problems of risky sample processing, many steps in the measurement process, and large error in experimental data, etc., and achieve a simple and easy detection method , Ensure the quality of development and improve the reliability of the effect

Active Publication Date: 2014-11-05
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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Problems solved by technology

[0004] The above-mentioned published documents reflect the technical status of the determination method of migratory components in the nitrate plasticized polyether (NEPE) propellant bonding system, and its defects are: risky sample processing, many steps in the measurement process, large errors in experimental data, Relatively high testing cost

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  • Determination method for migration components in nitrate ester plasticized polyether (NEPE) propellant bonding system
  • Determination method for migration components in nitrate ester plasticized polyether (NEPE) propellant bonding system
  • Determination method for migration components in nitrate ester plasticized polyether (NEPE) propellant bonding system

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Embodiment Construction

[0012] The present invention will be further described in three groups below in conjunction with the examples.

[0013] The first group, determination of the content of propellant migrating components in propellant bonded systems.

[0014] Step 1, prepare test samples: Obtain block-shaped peeling pieces of nitrate plasticized polyether (NEPE) propellant, cut into fine particles of 1mm x 1 mm x 1 mm, weigh 0.2 – 0.3g respectively, and put them into 50 ml Add 20 ml of analytical grade acetone to a stoppered Erlenmeyer flask, soak for more than 48 h to form soaking extract, quantify by external standard method, wash and transfer to a 50 ml volumetric flask to constant volume.

[0015] Step 2, determine the detection object and detection conditions: use high performance liquid chromatography (HPLC) to quantitatively measure the soaking extract, and the detection object is the propellant soaking extraction in the nitrate plasticized polyether (NEPE) propellant bonding system The ...

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Abstract

The invention relates to a determination method for migration components in an NEPE propellant bonding system used in the field of aviation fuels. The determination method comprises the following experimental steps: preparation of a to-be-detected sample; determination of detection objects and detection conditions; drafting of an external standard calibration curve; formation of a detection data list; etc. According to the method, a plurality of migration components in the NEPE propellant bonding system are detected, wherein the components comprise a plasticizer nitroglycerine (ND), a plasticizer butanetriol trinitrate (BTTN), an amine stabilizing agent (AD) and a curing catalyst triphenyl bismuth (TPB). The determination method is extensively applicable to qualitative and quantitative detection of a solid rocket and an energetic material used in space and missile technologies and can effectively reduce sample treatment risks, simplify the process of measurement and analysis, reduce data processing errors and save experimental expenses for detection. Moreover, the following advantages are obtained: the determination method is simple and practicable, experimental process is convenient to popularize, repeatability of detection data is good, and data processing is accurate and reliable.

Description

Technical field [0001] The invention relates to a chromatographic analysis method in the field of polymer chemistry of aerospace fuel, which is a detection method for nitrate plasticized polyether NEPE solid propellant bonding system, specifically a nitrate plasticized polyether propellant Method for determination of migratory components in adhesive systems. Background technique [0002] The report "Quantitative Analysis of NEPE Propellant / Liner / Adiabatic Layer Interfacial Migration Components" in the Chinese journal "Energetic Materials" Issue 3, 2010, proposed that high performance liquid chromatography (HPLC) is suitable for the simultaneous determination of viscosity The main migration components at the interface are plasticizers nitroglycerin (NG ), butanetriol trinitrate (BTTN ), and stabilizer (AD), but another migration component, triphenylbismuth, was not detected. [0003] The Chinese journal "Solid Rocket Technology" 2009 No. 5 reported the document "Component M...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02
Inventor 庞爱民聂海英黄志萍桑丽鹏胡伟尹华丽马新刚曹庆伟
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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