膜科学与技术

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Study on the influence of polypropylene configuration on the properties of hydrophobic microporous membrane and the preparation of blend membrane

Authors： TANG Na，SONG Yangyang，ZHANG Lei，WANG Weijia

Units： College of Chemical Engineering and Materials，Tianjin University of Science & Technology Tianjin 300457，China

KeyWords： Polypropylene; Molecular configuration; Hydrophobic microporous membrane; Co-blenging membrane; Vacuum membrane distillation

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2020,40(1):1-7

Abstract：

In this work, the effects of polypropylene molecular configuration were studied to fabricate hydrophobic microporous membrane in the process of thermally induced separation. The results showed that due to the thermal induced phase separation of different configuration of polypropylene in the process of the membrane for different crystalline form, the rules of isotactic polypropylene (iPP) is easy to form honeycomb spherulite, has a good average orifice flow, and atactic polypropylene (aPP) and the density of syndiotactic polypropylene (sPP) is easy to form honeycomb structure, two complementary structure is helpful to improve its flux and mechanical stability, blend membrane permeation flux was 20.30 kg·m-2·h-1, withholding rate more than 99.99%.

Funds：

天津市自然科学基金（18JCZDJC37200）；天津市海洋资源与化学重点实验室项目（201404）；教育部创新团队发展计划项目（IRT-17R81）

AuthorIntro：

第一作者简介：唐娜（1972-），女，辽宁海城人，博士，教授，博士研究生导师，主要研究方向：膜分离，海卤水资源综合利用，E-mail：tjtangna@tust.edu.cn，*通讯作者，E-mail：leizhang@tust.edu.cn

Reference：

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