salt rejection meaning in English
盐挡阻
Examples
- High performance nanofiltration composite membrane with varied permeating flux and salt rejection was obtained by changing the monomer concentrations in both phases properly . in the case of composite membrane ( ii ) , the concentration of organic phase was enhanced to 0 . 5 %
改变两相单体浓度可以获得不同通量和脱盐性能的纳滤复合膜，如适当提高有机相浓度至0 . 5得复合膜( ) 。 - The study conducted research on the following four fields : firstly , the characteristics of the interfacial polymerization system of piperazine aqueous solution / trimesoyl hexane solution were systematically investigated . the results show that at a certain molar ratio between the two monomers , piperazine and trimesoyl , at the two phase interface , a dense functional layer of ultra low pressure , high permeating flux and high salt rejection formed by controlling the time of interfacial polymerization , such as the composite membrane ( i ) , the concentration in water phase is 0 . 4 % , and 0 . 1 % in organic phase , and the polymerization time is 1 minute
本文主要进行了四个方面的研究，首先系统分析和研究了哌嗪水溶液均苯三甲酰氯正己烷溶液界面聚合体系特征、界面聚合反应中各影响因素对膜性能的影响等，结果发现，当界面处两相单体(哌嗪和酰氯)分子摩尔比为某一比值时，通过控制界面聚合时间(有机相处理时间) ，可以形成超低压高通量高脱盐的致密功能层，如复合膜( ) ，水相浓度为0 . 4 ，有机相浓度为0 . 1 ，聚合时间1min 。 - It can be concluded that the performance differences between the plate membrane and the hollow fiber membrane can be attribute to difference of the stresses in the membranes when they were under pressure and the difference of the strain caused in the membrane , besides the possible reason that the surface curvature difference between a plate substrate and a hollow fiber one may cause structure difference in the dense functional layer when coating . the stresses in a hollow fiber composite membrane under an outside pressure are quite different from that in a plate one in that they exert on the hollow fiber in both the radial and circular directions , and the compress strain of the hollow fiber is thus much more complex , which may cause the top layer crinkle and a decreased salt rejection
分析认为造成平板复合膜( )和中空纤维复合膜( )性能差异的主要原因，除了平板基膜与中空纤维基膜因表面曲率不同可能引起在涂覆时形成的致密功能层结构上的差异之外，由于中空纤维膜受外压时，膜内部承受的应力形式与平板膜不同，会同时在径向(膜厚度方向)和环向(膜面内方向)两个方向产生压应力，因此，所发生的形变也较为复杂，可能造成表面复合层的起皱或脱落，引起脱盐率下降。