丙烯腈-苯乙烯共聚物在TATB炸药上的吸附行为

用紫外光谱法测定了丙烯腈-苯乙烯共聚物(AS)在TATB(三氨基三硝基苯)炸药上的吸附动力学曲线和吸附等温线，考察了温度、溶剂种类、吸附剂TATB的比表面积及其浓度对吸附行为的影响。结果表明，AS在TATB炸药颗粒上达到吸附平衡约需35h，其吸附等温线呈“S”形。吸附量随温度的升高和吸附剂浓度的增加而降低。溶剂本性和吸附剂的比表面积是影响吸附量的重要因素，AS在不良溶剂中的吸附量大于好的溶剂；吸附剂的比表面积越大，吸附量越大。

Adsorption Behavior of Acrylonitrile-styrene Copolymer on TATB Explosive

The adsorption isotherms and dynamic equilibrium curve of acrylonitrile-styrene copolymer(AS) on TATB have been measured by using UV method. The effects of temperature,concentration of sorbent,the kind of solvent and the specific surface area of sorbent on the adsorption behavior of AS on TATB particle have been inspected. The results show that the time needed for the adsorption equilibrium of AS on TATB particle is about 35 hours. The adsorption isotherm exhibits the typical sigmoid shape. The adsorption amount of AS on TATB particle decreases with increasing the concentration of sorbent or rising the adsorption temperature. The kind of solvents and the specific surface area of sorbent is the principal factor affecting the magnitude of the adsorption amount of AS. The adsorption of AS on TATB surface in non-solvent is easier than that in good solvents. The larger the specific surface area of TATB is,the more adsorption amount of AS is.