CAJ | 학술논문

结合高压静态法和紫外分光光度法，确定以乙腈为参比溶液，建立了波长为227nm处HMX/乙腈溶液的工作曲线，测定出不同温度（308.15~328.15 K）和不同压力（8~23 MPa）下，HMX单质炸药在超临界二氧化碳流体（ SC-CO2）中的溶解度曲线。结果发现：在相同温度下，HMX溶解度随着压力的升高而迅速增大，且高温阶段其溶解度的增幅比低温阶段的要大；在相同压力下，存在一个转变压力（ Pvert ＝9 MPa），当小于Pvert时，HMX溶解度随温度增加而降低，当大于Pvert时，其溶解度随温度升高而增大。本实验测定范围内，每克CO2最多可溶解135.727μg HMX。
결합고압정태법화자외분광광도법，학정이을정위삼비용액，건립료파장위227nm처HMX/을정용액적공작곡선，측정출불동온도（308.15~328.15 K）화불동압력（8~23 MPa）하，HMX단질작약재초림계이양화탄류체（ SC-CO2）중적용해도곡선。결과발현：재상동온도하，HMX용해도수착압력적승고이신속증대，차고온계단기용해도적증폭비저온계단적요대；재상동압력하，존재일개전변압력（ Pvert ＝9 MPa），당소우Pvert시，HMX용해도수온도증가이강저，당대우Pvert시，기용해도수온도승고이증대。본실험측정범위내，매극CO2최다가용해135.727μg HMX。
Using high pressure static state method and UV spectrum measurement,the solubility( tempera-ture of 308. 15K-328. 15K,and pressure of 8MPa-23MPa )of HMX in supercritical carbon dioxide( SC-CO2 )were studied with the reference solvent of methyl cyanide at the wave length of 227nm. It is conclu-ded that the solubility of HMX rises rapidly as the pressure increases at the same temperature,and the sol-ubility amplitude of high temperature state is higher than that of low temperature state. Nevertheless,there is a convert pressure( Pvert )at the same pressure,ie,with the decreasing of temperature,the solubility of HMX falls when the pressure is lower than Pvert ,and increases when the pressure is higher than Pvert . Mo-reover,under the condition of this experiment,the highest solubility of HMX is 135. 727 μg/gCO2.