A comparison between two ways flow (TWF) membrane filtration process and common membrane filtration process were made in a PVDF hollow fiber membrane separation process.
利用聚偏氟乙烯(PVDF)中空纤维膜，对比考察了双向流膜过滤工艺与普通膜过滤工艺。
Two-component polyurethane adhesive for composite membrane was studied in terms of its composition, synthesis and process conditions.
本文确定了复合膜用双组份聚氨酯胶粘剂的组成成份，合成方法和工艺条件。
The advances of production process are mainly applications of two stage filtration, full filtrate circulation, filter aids, membrane solvent recovery, dewaxing at room temperature, etc.
工艺进展主要是两段过滤、全滤液循环、助滤剂应用、渗透膜溶剂回收、室温脱蜡等。
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