The asymmetric polyamide-6(PA6) membranes were prepared by thermally induced phase separation.From the scanning electron microscopy(SEM) images,it is observed that with the increase of silicon dioxide(SiO_2) content the structure of obtained membranes gradually varied from cellular structure to large ball-shaped cluster aggregates. Subsequently,with the addition of SiO_2,pure water flux increased first and then decreased,while rejection showed the opposite trend.Besides,raising the coagulation bath temperature was favorable to increase pure water flux.Consequently, different membrane morphologies and performance were obtained by changing SiO_2 content and coagulation bath temperature.
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机译:开发用于现场人体性能评估的便携式数据采集系统 - 阶段IIB验证(mise au point d'un systeme portatif D'acquisition de Donnees pour L'Evaluation de la performance Humaine sur le Terrain phase IIB Validation)