ppva

Studies on the separation properties of ppva / pan pervaporation composite membrane

PPVA/PAN渗透汽化复合膜分离特性研究

The separation experiment showed that PPVA / PAN membranes were of good water separation properties .

试验结果表明，PPVA/PAN复合膜对水具有较好的分离性能。

Changes of histomorphology in groups PPVA were mild in general .

肝脏组织形态学观察，PPVA组总体表现组织形态学变化较轻微。

Studying on the PPVA / PAN composite membrane stability of esterification coupled pervaporation process

酯化反应偶联渗透汽化膜反应器PPVA/PAN复合膜稳定性研究

Consequently with its feasibility and practicability , Flow-controlled PPVA should be of value in clinical application .

因而认为，限流性PPVA有一定的可行性和实用性，应该具有临床应用价值。

Then the effects of flow-controlled PPVA on regeneration of remnant liver and prevention of liver failure were studied within post-op 30 days .

对照观察根治术中应用限流性PPVA在术后30天内对残肝再生、预防肝衰竭等的作用。

Effects of PPVA activity layer esterification degree , separation temperature and feed EtOH concentration on the PPVA / PAN composite membrane separation properties were all investigated .

考察了PPVA活性分离层的酯化度、分离温度、进料浓度等因素对复合膜的分离性能的影响。

Effects of Flow-controlled PPVA on Changes of portal vein pressure and liver histomorphology are mild in periods of 30 days , of which in long-term requires further evaluation .

限流性PPVA对门静脉压力和肝脏组织结构的改变，近期（30天内）影响轻微，长期影响有待进一步观察研究。

Flow-controlled PPVA is beneficial to regeneration of remnant liver and prevention of liver failure in extended hepato-biliary radical resection in miniature pigs with obstructive Jaundice .

限流性PPVA对梗阻性黄疸小型猪扩大肝-胆切除术后的残肝再生、预防肝功能衰竭有益。

In esterification coupled pervaporation membrane reactor , effects of catalytic systems and their content on the membrane stability were all investigated through comparing the pervaporation properties of PPVA / PAN composite membrane on the separation of ethanol / water mixture .

比较了酯化反应耦合渗透汽化膜反应器中不同的催化剂体系及其含量对PPVA／PAN复合膜稳定性的影响。