膜材料的各项性能的分析检测，是膜研发、生产、应用、评价的重要环节。泡压法(气液驱替法)和液液驱替法作为膜性能分析检测的常用方法，相比其它方法，因其具有测试过程与实际应用相似度高、速度快、成本低等优势，成为固态微滤膜的重要分析方法。本次报告将以3H-2000PB泡压法膜孔径分析仪为例，主要从实际应用的角度，对于泡压法和液液驱替法在微滤、超滤膜分析检测方面的原理、应用进行一些介绍。
提出了PTFE膜微孔结构形成过程三阶段基本理论假说.基于实验结果,分析认为PTFE在拉伸致孔过程中：首先,所发生的微小位移即克服分子间作用力,对应第一次应力屈服.由于前驱体制作工艺过程相同,所以其拉伸应力大小及其所对应的拉伸伸长率不随拉伸速度变化而改变；进而,应力由拉伸所得的微纤结构承载,微纤数量越多、结构越粗壮,纤维形变所需克服的应力越大,从树脂初级粒子中拉出的微纤结构越多,纤维所承载的拉伸应力
REY zeolites used to be active component in Fluid Catalytic Cracking(FCC)catalysts,which to be widely used owing to their high catalytic activity,stability and preferable selectivity.
Rare Earth Elements(REE)has become a major commodity in the minerals market due to its many industrial applications.
Phosphate minerals have been identified as significant unconventional rare earths resources.
Rare earth had been widely applied in national defense and high-tech fields.In recent year,rare earth has been expended rapidly for the development of the national economy and continuous global supply
TbCu7-type SmFeN compounds have excellent intrinsic magnetic properties.However,the large total flux loss limits the application of SmFeN bonded magnets,especially in areas at high temperature.In this
Minimum Extraction Amount(Smin)is an important parameter the wide-using rare earth extraction separation process.
Phosphorus slag is the most heavy-tonnage waste of yellow phosphorus production,which is stored in the dump fields for many years creating ecological problems in the regions.
Fractional extraction with two inlets is a novel system which can process two kinds of material liquid at the same time.