Study on Measurement of Adsorption Capacity of Unsymmetrical Dimethylhydrazine Gas based on Stainless Steel

Abstract Unsymmetrical dimethylhydrazine (UDMH), as a high-energy liquid propellant, is widely used in aerospace, rocket, aircraft, and other fields. However, it also has certain toxicity, fire, explosion risks, which will cause harm to the human liver, kidney, central nervous system, blood etc., especially system. UDMH easy be adsorbed on surface of body or substances, but there lack research reports measurement its adsorption capacity. In this paper, based principle measuring gas capacity by volumetric method, set testing devices was built. experiment, 304 316L stainless steel materials were adsorbent. Under same experimental temperature pressure conditions, test bottle containing adsorbent filled with different concentrations fully until saturation explore influence roughness under conditions. The results show that increases increase concentration range (0~100 ppm) studied paper. After polishing material, compared unpolished material after significantly smaller, indicating larger adsorbent, more approximately equal. experiment proves conforms monolayer within