Solubility of CO2 in Solid State PET by Pressure-Decay Method

Solubility of CO_2 in solid state PET was measured by pressure-decay method.In order to calculate solubility of CO_2 in amorphous region of PET,the crystallinity of solid state PET dissolved by CO_2 at different pressures and temperatures was investigated by differential scanning calorimetry(DSC).The solubility increases with pressure,and when the pressure is below 8 MPa it follows the linear relationship and meets the Henry's law.The effect of temperature on solubility is weak and the data of solubility at...