CAJ | 학술논문

研究了熔融纺丝法聚氨酯(PU)系中空纤维膜的压力响应性.结合σ-λ曲线,采用二参数Mooney-Rivlin模型对后拉伸8倍中空纤维膜的压力响应性进行了有限元模拟.结果表明,所得模型在透膜压力低于0.1MPa时与实测数据吻合较好,而高于0.1MPa时与实测数据出现较大差异.分析结果表明,当透膜压力高于0.1MPa时,中空纤维膜在压力响应过程中在微孔孔径发生改变的同时孔数量也发生了变化.
연구료용융방사법취안지(PU)계중공섬유막적압력향응성.결합σ-λ곡선,채용이삼수Mooney-Rivlin모형대후랍신8배중공섬유막적압력향응성진행료유한원모의.결과표명,소득모형재투막압력저우0.1MPa시여실측수거문합교호,이고우0.1MPa시여실측수거출현교대차이.분석결과표명,당투막압력고우0.1MPa시,중공섬유막재압력향응과정중재미공공경발생개변적동시공수량야발생료변화.
The pressure responsibility of the PU-based hollow fiber membrane was studied. According to the σ-λ curves, the finite element simulation of the pressure responsibility of the hollow fiber membrane after stretching 8 times was done using the two-parameter Mooney-Rivlin model. Results showed that the theoretical curve matched the real one under 0.1PMa while the real one became much higher after 0.1MPa. It could be analyzed that during pressure responsible processes, both the quantities and the size of the microvoids changed when the trans-pressure was more than 0.1MPa.