摘要
腹水浓缩回输术是目前治疗腹水的主要方式。通过实验选择一种膜放在腹水浓缩回输之前,将对人体有益的物质如白蛋白等透过膜,而对人体有害分子量大于蛋白质的物质如细菌和癌细胞等截留。以聚偏氟乙烯和聚乙烯醇作为膜原料,以聚乙烯吡咯酮为添加剂,采用热致相分离法制备聚偏氟乙烯平板膜、中空纤维膜,测试了膜的水通量、孔隙率,并以牛血清蛋白为研究对象,测试不同类型的膜对牛血清蛋白的截留效果。实验结果表明聚偏氟乙烯/聚乙烯醇(PVDF/PVA)平板膜的截留效能优于中空膜。
Ascites uhrafiltration and reinfusion was now the major way for the treatment of ascites. A piece of membrane was screened out to place before ascites ultrafihration and reinfusion in order to remove the harmful substances such as bacteria and cancer cells but the proteins beneficial to human body could pass through the membrane. Both polyvinylidene fluoride（PVDF）/polyvinyl alcohol （PVA）flat and hollow fiber membranes were prepared via thermally induced phase separation method by using polyvinyl pyrrolidone （PVP） as additive. Pure water flux, porosity and retention to bovine serum albumin （BSA） of membranes were investigated. The experimental results showed that the retention efficiency of PVDF/PVA flat membrane was better than hollow membrane.
出处
《塑料》
CSCD
北大核心
2017年第3期14-17,22,共5页
Plastics
