Effect of P123 on structures and properties of PES nanofibrous membranes

doi:10.11949/j.issn.0438-1157.20150419

CIESC Journal ›› 2015, Vol. 66 ›› Issue (11): 4676-4681.DOI: 10.11949/j.issn.0438-1157.20150419

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Effect of P123 on structures and properties of PES nanofibrous membranes

MA Xiaohua, XU Zhenliang

State Key Laboratory of Chemical Engineering, Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Membrane Science and Engineering R&D Laboratery, Chemical Engineering Research Center, East China University of Science and Technology, Shanghai 200237, China

Received:2015-04-03 Revised:2015-06-03 Online:2015-11-05 Published:2015-11-05
Supported by:
supported by the National Natural Science Foundation of China (21406060), the Shanghai Yang-fan Plan for Young Talents (14YF1404800) and the Open Project of State Key Laboratory of Chemical Engineering (SKL-ChE-14C03).

P123对聚醚砜纳米纤维膜结构和性能的影响

马晓华, 许振良

华东理工大学化学工程联合国家重点实验室, 上海市多相结构材料化学工程重点实验室, 化学工程研究所膜科学与工程研发中心, 上海 200237

通讯作者: 许振良
基金资助:
国家自然科学基金项目(21406060);上海市英才扬帆计划项目(14YF1404800);化学工程联合国家重点实验室开放课题(SKL-ChE-14C03)。

Abstract

Abstract:

Polyether sulfone (PES)/polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer (P123, PEO₂₀PPO₇₀PEO₂₀, M_a 5800) nanofibrous membrane was prepared via electrospinning. The influence of P123 content on viscosity and surface tension of spinning solution was investigated as well as the effect on structures and properties of the formed nanofibrous membranes. The results showed that the viscosity and surface tension of spinning solution increased from 300 to 1000 mPa·s and 36.5 to 37.8 mN·m^-1 with increasing P123 content from 3% to 9%, respectively. The diameter of the obtained PES/P123 nanofibers was about 360 nm. The formed PES/P123 nanofibrous membranes had a uniform distribution, smooth surface and good mechanical and swelling properties. They also had large specific surface area (>39 m²·g^-1) and porosity, and could be used as catalyst support.

Key words: nanofibrous membranes, polymers, P123, swelling properties, mechanical properties

摘要：

通过静电纺丝法制备了聚醚砜(PES)/聚环氧乙烷-聚环氧丙烷-聚环氧乙烷三嵌段共聚物(P123,PEO₂₀PPO₇₀PEO₂₀,M_a=5800)纳米纤维膜,考察了P123含量对纺丝液的黏度和表面张力的影响,以及对所制备的纳米纤维膜的结构和性能的影响。实验结果表明:P123含量从3%(质量)增至9%时,其纺丝液的黏度由300 mPa·s增至1000 mPa·s,表面张力在36.5～37.8 mN·m^-1范围内;P123改性的PES纳米纤维直径约为360 nm,分布均匀,其表面也比较光滑,取向趋于一致;此外,该纳米纤维膜具有良好的机械性能和耐溶胀性能,较大的比表面积(>39 m²·g^-1),孔隙率,可用作催化剂载体。

关键词: 纳米纤维膜, 聚合物, P123, 溶胀性能, 机械性能

CLC Number:

TQ31

MA Xiaohua, XU Zhenliang. Effect of P123 on structures and properties of PES nanofibrous membranes[J]. CIESC Journal, 2015, 66(11): 4676-4681.

马晓华, 许振良. P123对聚醚砜纳米纤维膜结构和性能的影响[J]. 化工学报, 2015, 66(11): 4676-4681.

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Effect of P123 on structures and properties of PES nanofibrous membranes

P123对聚醚砜纳米纤维膜结构和性能的影响

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