铸膜

• The results indicate the even blended , clear suspensions owned a good stability and flowability , and can used as casting membrane solutions . both the stability of active carbon power suspensions and the integration properties of membrane being made from them were bad . coagulant bath temperature had a strong influence on pu , pes composite flat membrane
  结果表明，经过充分分散的sio _ 2填充聚合物铸膜液，均匀透明，具有较好的稳定性和流动性，适于用作平板膜和中空纤维膜的原料液；而活性炭粉填充聚合物铸膜液稳定性较差，所得膜的综合性能也差于sio _ 2填充膜。
• Abstract : in the process of preparing ultrafiltration membrane , the introduction of hydrated lanthanum oxide la2o3 . nh2o makes the ultrafiltration membrane possess two functions - separating large molecules and decreasing the concentration of fluorine in the water . the mechanism of removing fluorine of the ultrafiltration membrane was discussed
  文摘:在超滤膜制备过程中，向铸膜液中引入亲氟物质水合氧化镧，经熟化后制备的混合超滤膜具有分离大分子和降低水体中氟离子浓度两种功能.以含氟饮用水为研究对象，对其混合膜的降氟机理进行了探讨
• For the separation of methanol / mtbe , the casting solvent mixtures were investigated in detail , it was found that the positive relationships between huggins parameter ( kh ) and permeation flux ( j ) were due to the casting solvent mixtures . thus , the separation performance could be improved by adjusting the casting solvent mixtures
  对于meoh mtbe体系的分离，本文在已有的研究基础上，考察了铸膜混合溶剂对膜分离性能的影响，发现第二溶剂的添加使膜的渗透通量j有所提高，并且j的增加值与铸膜稀溶液的huggins参数kh成正相关。
• The substitution of pervaporation for traditional separation in organic mixtures is of energy - saving and environment - protecting significance . in this paper , pervaporation of two kinds of organic mixtures is investigated : one is using ca membrane and ca - eva ( ethylene - co - ethylene acetate ) composite membrane for methanol removal from mtbe ( methyl t - butyl ether ) , focused on the influence of casting solvent mixtures ; the other is utilizing proper membrane stuff and additive to separate p - xylene from m - xylene
  本文对两类有机有机混合体系进行了渗透汽化膜过程的研究，其一为醋酸纤维素( ca )膜及ca -乙烯醋酸乙烯共聚物( eva )复合膜用于甲基特丁基醚( mtbe )中少量甲醇( 5 meoh )的脱除，探讨铸膜混合溶剂及后处理技术对膜分离性能的影响。其二为运用适当的膜材料及添加剂去除间二甲苯( mx )中的少量对二甲苯( 10 px ) 。
• By using atomic force microscopy ( afm ) investigation on the membrane surface , different separation properties can be explained very well according to the data of pore size . increasing temperature or nmmo concentration of coagulation bath or decreasing concentration of casting solution leads to larger skin pore size , wider pore size distribution and higher values of the roughness parameters
  用原子力显微镜( afm )对膜表面形态的分析表明：膜表面孔径随着铸膜液浓度的降低、凝固浴温度和浓度的升高而逐渐变大，且孔径分布变宽。
• The effects of some important factors on structure , pore size , porosity , flux , weight of vapor transfer , etc . have been investigated by changing temperature of pvdf resolution , types of solvent , molecular weight of pvdf , weight of additive , time of solvent pre - evaporation and so on . the optimal process of making membrane and recipe of solution were made out
  然后通过改变pvdf溶解温度，铸膜液的溶剂， pvdf的分子量， pvdf用量，添加剂氯化锂用量，涂膜时预挥发时间，凝固浴温度以及凝固浴中无机盐氯化钠、溶剂丙酮等影响因素，考察这些因素对膜形态结构及孔径，孔隙率，水通量，透湿量等性能的影响规律，初步确定了铸膜液配方及涂膜工艺条件。