Study on structure and properties of tubular braid-reinforced poly(lactic acid) (PLA) hollow fiber membranes

被引：5
|
作者：
Xiao, Chuanmin [1 ]
Xiao, Changfa [1 ]
Chen, Mingxing [2 ]
Huang, Heng [1 ]
机构：
[1] Tianjin Polytech Univ, Sch Mat Sci & Engn, State Key Lab Separat Membranes & Membrane Proc, 399 Binshui West Rd, Tianjin 300387, Peoples R China
[2] Hebei Univ Sci & Technol, Sch Text & Garments, 26 Yuxiang Dist, Shijiazhuang 050018, Hebei, Peoples R China
来源：
DESALINATION AND WATER TREATMENT | 2019年 / 161卷
基金：
中国国家自然科学基金;
关键词：
Poly(lactic acid); Polyethylene glycol; Tubular braid-reinforced; Hollow fiber membranes; Interfacial bonding; MICROFILTRATION MEMBRANES; ULTRAFILTRATION MEMBRANE; MOLECULAR-WEIGHT; STRUCTURE DESIGN; PERFORMANCE; MORPHOLOGY; SEPARATION; WATER; REDUCTION; SCAFFOLDS;
D O I：
10.5004/dwt.2019.24278
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The tubular braid-reinforced (BR) poly(lactic acid) (PLA) hollow fiber membranes were prepared by concentric circular spinning technology in this study. The effect of polyethylene glycol (PEG) molecular weight on the structure and properties of the homogenous-reinforced (HMR) PLA hollow fiber membranes was investigated. Besides, the effect of tubular braid materials on the interfacial bonding performance was also studied. The results showed that with the increase of PEG molecular weight, the mean pore size showed a decreasing trend and the membrane surface became rougher which induced the hydrophilicity to increase. In addition, the water flux of the membranes increased first and then decreased. While, the BSA rejection and the anti-fouling performance increased with the increase of PEG molecular weight. When the PEG molecular weight was 10,000, obtained membranes exhibited a high pure water flux of 135.8 L m(-2)h(-1) and BSA rejection of 96.1%. It was also found that the interfacial adhesion of HMR PLA hollow fiber membranes was better than that of the heterogeneous-reinforced (HTR) PLA hollow fiber membranes.
引用
收藏
页码：116 / 125
页数：10
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