1) gas permeability
气体渗透性能
1.
The membranes were characterized by SEM, TG, nitrogen absorption and gas permeability measurement.
SEM ,XRD ,IR ,TG -DTA ,氮吸附和气体渗透性能测试装置对其进行了表征 。
2.
Effects of the temperature and chemical composite on the free volume, molecular motion, gas permeability and barrier properties are discussed.
主要研究内容如下: 一、聚氨酯聚合物 1)聚烯烃聚氨酯 用正电子湮没寿命谱研究了丁羟聚氨酯(HTPB-PU)、丁苯聚氨酯(HTBS-PU)及丁腈聚氨酯(HTBN-PU)这三种嵌段共聚物的自由体积特性及其与气体渗透性能的关联。
2) gas permeability
气体渗透性
1.
Testing study of gas permeability of fracture rock under peak stress;
峰值破裂岩石的气体渗透性试验研究
2.
The carbonation performances and gas permeability of four types of concrete(ordinary concrete,fly ash concrete,air-entrained concrete and fly ash airentrained concrete) were studied in this paper.
研究了普通混凝土、粉煤灰混凝土、引气混凝土和粉煤灰引气混凝土等四类混凝土的抗碳化性能和气体渗透性能。
3.
The characteristics of pore structures, surface appearance,the ratio of gas permeability (J) and separation factor (α), etc were performed by SEM, XRD and gas permeability experiments.
０ｍｍ），并通过ＳＥＭ、ＸＲＤ及气体渗透性等研究，从孔结构、表面形貌、气体渗透率和分离因子等多方面进行表征。
3) gas permeability
透气性，气相渗透率，气体渗透性
4) Gas permeability
气体渗透
1.
Study on gas permeability of the unsaturated bentonites;
不饱和膨润土中气体渗透研究
2.
The function of water on α-cellulose membrane was also revealed by comparatively studying the gas permeability of cellulose acetate membrane, benzoylated cellulose membrane and polysulfone membrane in "dry" and "wet" state.
测定了水溶胀下 ,CO2 、H2 、CH4 、N2 、O2 等气体在α 纤维素膜内的气体渗透速率 。
3.
Composite membranes,consisting of zeolite Y and polysulfone polymer,were prepared,and gas permeability through both zeolite Y filled polysulfone and unblended polysulfone membranes were measured.
与此相对应，膜的气体渗透特性也发生突变。
5) gas permeance
气体渗透
1.
The defects and modification of ZSM-5 zeolite membrane, as well as the characterization of ZSM-5 zeolite membranes with XRD、SEM、TEM and single gas permeance measurements are summarized.
本文分析了ZSM-5分子筛膜的主要合成方法和研究现状,总结了ZSM-5分子筛膜的缺陷与修饰方法,指出了ZSM-5分子筛膜的表征手段是以XRD、SEM、TEM和单组分气体渗透等为主,对ZSM-5分子筛膜的应用和前景进行了展望。
6) gas permeation
气体渗透
1.
It is analyzed that the principles of gas permeation through porous membrane and the relationship between the permeability of gas and the structure of hydrophobic porous membrane.
理论分析了疏水性多孔膜气体渗透原理和膜各种结构特征参数的关系,并建立了计算气体渗透通量的模型方程,以及确定多孔膜曲折因子等结构参数的方法。
2.
The gas permeation (GP) experiments were conducted with the pressure difference between the two sides of the membrane ranging from 10 to 100 kPa, and it was found that with the increase of pressure difference, the employed membranes show smaller membrane pore size and larger ε/τδ values.
针对两种聚四氟乙烯膜在膜两侧压差为10~100kPa范围内进行了气体渗透实验,结果表明:实验用膜具有一定的可压缩性,随膜两侧压差的增大,膜孔径r减小,而膜孔隙率与有效厚度的比值ε/τδ是增大的,且其变化幅度随膜厚度的增大而增大。
3.
The new methods were established that structure parameters of asymmetric membranes and composite membranes were determined by measuring gas permeability according to the mathematical models for correlations between the membrane structure parameters and gas permeation.
根据非对称膜及其复合膜与气体渗透之间关系的数学模型，建立了通过测定气体渗透率确定膜结构参数的计算方法，并建立了相应的电算软件。
补充资料：气体渗透
分子式：
CAS号：
性质：气体在压力作用下通过膜的过程。气体渗透过程一般用气体在膜内溶解和扩散的机理描述。混合气体中不同的组分在膜内溶解和扩散的性能不同，即渗透速率不同，利用这个特点可以用气体渗透膜来实现气体的分离，如空气中氧与氮的分离，由合成氨弛放气中回收氢气等。
CAS号：
性质：气体在压力作用下通过膜的过程。气体渗透过程一般用气体在膜内溶解和扩散的机理描述。混合气体中不同的组分在膜内溶解和扩散的性能不同，即渗透速率不同，利用这个特点可以用气体渗透膜来实现气体的分离，如空气中氧与氮的分离，由合成氨弛放气中回收氢气等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条