膜科学与技术

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Research on Nanometre Silicone Emulsion Modified iPP/TiO2 Superhydrophobic and Selfcleaning Microporous Membrane

Authors： HAN Huaiyuan1,2, ZHANG Lei1,2, FENG Chunlei1,2, XIANG Jun1,2, CHENG Penggao1,2, TANG Na1,2,*

Units： 1. College of Marine Science and Engineering，Tianjin University of Science and Technology ，Tianjin 300457；2.Tianjin Key Laboratory of Marine Resources and Chemistry，Tianjin 300457

KeyWords： nanometre silicone emulsion, isotactic polypropylene, nano TiO2, superhydrophobic modification, membrane distillation

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2016,36(3):41-47

Abstract：

The lab-made isotactic polypropylene/ nano TiO2 particle co-blending microporous membrane was modified by immersion method. The effect of nanometre silicone emulsion concentration and reaction temperature on the morphological structure and hydrophobicity of the modified membranes was discussed. Then, the best preparation condition of the nanometre silicone emulsion modified iPP/TiO2 superhydrophobic membrane was obtained. Finally, the determination of self-cleaning property, pH and VMD stabilities of nanometre silicone emulsion modified iPP/TiO2 superhydrophobic membrane was carried out. The result showed that the best preparation condition of the nanometre silicone emulsion modified iPP/TiO2 superhydrophobic membrane was UV photocatalysis was 30min, the concentration of nanometre silicone emulsion was 20wt%, reaction temperature was room temperature, and the drying time was 2h under 80°C. On this condition, the contact angle of modified membrane was reached 153.2°, and the rolling angle was less than 10°. The nanometre silicone emulsion modified iPP/TiO2 superhydrophobic membranes had an excellent self-cleaning property, pH stability, VMD stability, anti-pollution capacity and anti- wetting capacity.

Funds：

国家自然基金（21376178）；天津市科委科技支撑重大专项（12ZCDZSF06900-3）；天津市科委面上重点项目（12JCZDJC30000）；天津市海洋经济创新发展区域示范项目（cxsf2014-26）；教育部创新团队项目（编号：[2013]373）；天津市创新团队项目（编号：TD12-5004）；天津科技大学大学生创新创业训练计划（201410057075）

AuthorIntro：

第一作者简介：韩怀远（1986-），男，河南郑州人，博士生。主要研究方向：热致相分离制膜及膜分离技术。（alexhanhuaiyuan@163.com）通讯作者：唐娜（1972-），女，辽宁海城市人，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．（tjtangna@tust.edu.cn）

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