气体吸附参数对纳米网格三氨基三硝基苯比表面积的影响

IInfluence of Gas-adsorptive Parameters on Specific Surface Area of Nano-grid Triaminotrinitrobenzene

利用比表面积和孔径分析仪,研究分析脱气条件、计算模型以及吸附压力等气体吸附参数对纳米网格三氨基三硝基苯（n-TATB）比表面积的影响.结果表明：适当的脱气条件有助于加快n-TATB表面吸附杂质及水分的挥发;Brunauer-Emmetr-Teller计算模型适合于n-TATB比表面积分析,最佳分析相对压力范围为0.05～0.25;n-TATB是一种含有少量微孔和介孔的裂隙大孔材料.

The influence of degassing method, calculation model, and adsorption pressure on the specific surface area tested result of nano-grid triaminotrinitrobenzene （n-TATB） was researched by a surface area and pore size analyzer. The results show that the proper degassing method can accelerate the volatilization speed of foreign substance and water absorbed by the surface of n-TATB. Brunauer- Emmetr-Teller calculation model is suit for the specific surface area analysis of n-TATB and the optimal test relative pressure is in the range of 0.05 to 0.25. n-TATB is a kind ofslit-macropores material including some micropores and mesopores.