THE APPLICATION OVERVIEWS OF AEROSPACE MATERIAL OUTGASSING KINETICS MEASURING METHODS

To predict the on-orbit molecular contamination effects on satellite system，many countries set down corresponding aerospace material outgassing kinetics measuring methods.Among which，ASTM E 1559 Standard test method developed by American Society of Testing Materials（ASTM）for contamination outgassing characteristics of spacecraft materials appears more advanced.Comparing with other test methods，it can measure the contamination outgassing characteristics of spacecraft materials in suit，and acquire the outgassing and condensing kinetic models which are temperature and time dependent.This paper introduces several aerospace materials outgassing kinetics measuring methods，mainly studies the content of ASTM E 1559 and the application of home and abroad，finally gives the following results：this method can measure in suit，acquire the condensing characteristics of molecular contamination on sensitive surface with different temperature which has wide range and can low up to 90K.In addition，based on this method，we can use the quadruple mass-spectrometer to analyze the ingredients of the molecular contamination，which benefits the study of the application of the ASTM E 1559 in our country and our ability on the predication of the contamination outgassing characteristics of spacecraft materials.