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    The relation between temperature T and hydrocarbon solvent permeation quantity J is J=a 2e b 2T .
    烃类溶剂渗透量J随温度T的变化关系为:J=a2eb2T。
    SEM and XRD results indicate that the membranes were demse ZSM-5 zeolite layer,the permeability of H_2 through the membrane was up to 3.690×10~(-6) mol/(m~2·s·Pa),the ideal separating factor of H_2 to C_3H_8 was 25.625
    对膜进行单气体渗透量测试,膜的H2渗透量3.69×10-6mol/(m2·s·Pa),H2/C3H8的理想分离因子为25 6.
    Results showed that the membrane was extremely effective for the dehydration of isopropanol/water mixtures by pervaporation. At 323 K and 343 K, the separation factors and the fluxes were more than 10 000 at m(C_3H_8O)/m(H_2O)=95∶5 and 1.27 kg/(m~2·h) and 1.74 kg/(m~2·h), respectively.
    考察了A型分子筛膜的渗透汽化性能,结果表明,在温度为323K和343K下,当原料液中异丙醇的质量分数为95%时,其水/异丙醇分离系数都大于10000,渗透量分别为1.27kg/(m2·h)和1.74kg/(m2·h).
    Results: The penetration equation of sinomenine gel was Q=65.852 t-55.677(r=0.991 9).
    结果:实验结果表明,青藤碱凝胶剂体外透皮释药方程为Q=65.852t-55.677(r=0.991 9),10 h累积渗透量为638μg/cm2。
    The Relationship Between pH Value and Permeability of Pharmaceuticals Through Fibroin Protein Membrane
    丝素膜上药物渗透量对溶液pH值的响应
    A kind of device to measure oxygen permeability of the copolymer hydrogel membrane was designed, and oxygen permeability of the copolymer hydrogel were measured by this device as well.
    采用自行设计的水凝胶膜透氧性能测定装置,用测氧仪测定不同渗透时间下氧气的渗透量,研究了共聚物水凝胶角膜接触镜材料的透氧性能。
    logP of ACF in n-octanol/water system at 32℃ was 0.99. The permeability of ACF underdifferent pH and ionic strength were determined, Jss showed a rise with the increase of pH and a decline with the increase of ionic strength.
    通过对醋氯芬酸在不同pH值和不同离子强度下经皮渗透性的考查,发现其经皮渗透量随pH值的增加而增大,随离子强度的增加而减少。
    The experimental results showed that when polyurethane/arcylate is 40:55 by mass,the composite film prepared under 400 W UV irradiation for 5 min possesses dense surface structure and good mechanical properties. After being soaked in water,the tensile strength retained 90% that of dry film,the shrinkage and swelling were less than 2. 5%,and the water vapor permeability was a quarter of that of uncured cellulose film.
    实验结果表明,当聚氨酯:丙烯酸酯为40:55(质量比),在400W紫外光下固化5min制得的复合膜具有致密的表面结构和较好的性能,该膜经水浸泡后其断裂强度可达干膜的90%,浸水收缩率和膨胀率均小于2.5%,水汽渗透量仅为再生纤维素膜的1/4。
    In this paper, it is showed the etharol-water separation performance by pervaporation is good after long-time storage or repeated use of the polyuinylalcohol(PVA) composite membrane. The permeate flux is more than 100 g/m2·h, and the ethanol composition in the permeate is not detected.
    本文研究表明,经长期贮存或经反复使用,PVA复合膜的渗透汽化分离性能仍然优良,其中PVA/CA复合膜的渗透量大于900g/m2·h,而渗透物中乙醇组分未检出。
    The silk fibroin protein membrane was an amphoteric ion-exchange membrane composed of both weak acidic and weak basic groups.
    蚕丝丝素蛋白膜是一种具有弱碱性和弱酸性的两性荷电膜。 因此在丝素膜-水溶液体系中,水溶液pH值变化会影响丝素膜上溶质的渗透速度和渗透量
    It is concluded that, owing to the amphoteric ion-exchange property of the silk fibroin membrane, the permeability of silk fibroin protein membrane to pharmaceucals can be regulated by changing the pH value of the external solution.
    这表明离子化药物在蚕丝丝素膜上的渗透速度和渗透量对溶液pH值变化有较好的响应特性。
    the penetrative quantity comes to the maximum(24.8%)after being controlled for 4h; however,the minimum of it is 6.8% 6d later. Chlorpyrifos can control the borers because of its penetrative properties in some sense;
    处理后 4小时 ,渗透量达最大值 ,而 6天后含量降到最低点 ,分别占其总药量的 2 4 .8%和 6.8% ,说明毒死蜱能有效防治一些钻蛀性害虫是由于具有一定的渗透性能 ;
 

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