Origin of delamination/adhesion in polyetherimide/polysulfone co-cast membranes
Origin of delamination/adhesion in polyetherimide/polysulfone co-cast membranes
复制标题
聚醚酰亚胺/聚砜共铸膜分层/粘附的根源
DOI：
10.1016/j.memsci.2010.02.013
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发表时间：
2010-04
影响因子：
9.5
通讯作者：
He, Tao
中科院分区：
文献类型：
--
作者：
Li, Xue-Mei;Ji, Yu;Yin, Yong;Zhang, Yun-Yan;Wang, Yu;He, Tao
采用共浇铸法制备了聚醚酰亚胺(PEI)和聚砜(PSF)两种不相容聚合物微滤膜。分别采用PEI/NMP和PSF/PVP/NMP作为包覆液和支撑液。探讨了PEI/PSF复合膜分层/粘连的原因。通过透光率、凝固值、膜的收缩、相分离前沿的移动和扫描电子显微镜来揭示粘结和剥离的机理。研究发现，不同层的收缩系数的不同决定了粘结/分层。随着凝固浴温度的升高，PEI膜和PSF膜的厚度收缩值差异变小，在65℃以上，双层膜的形态也从分层变为粘连。凝固剂值(CV)对粘合/分层的影响不明显。
Two immiscible polymers, polyetherimide (PEI) and polysulfone (PSf), were used to prepare PSf microfiltration membrane in a co-casting process. PEI/NMP and PSf/PVP/NMP were employed as the coating and support solutions, respectively. The origin of the delamination/adhesion in the PEI/PSf composite membranes was investigated. Light transmission, coagulation value, membrane shrinkage, movement of the phase separation frontier and Scanning Electron Microscopy were utilized to unravel the adhesion and delamination mechanism. It was found that the difference in shrinkage values of different layers determined adhesion/delamination. With the increase of coagulation bath temperature, the difference in thickness shrinkage values of PEI and PSf membranes became smaller, and the morphology of double layer also changed from delamination to adhesion at temperature above 65°C. The effect of coagulant value (CV) for the system studied appeared to be insignificant in relation to the adhesion/delamination.
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影响因子：
9.5
作者：
He, T;Mulder, MHV;Wessling, M
通讯作者：
Wessling, M
影响因子：
9.5
作者：
C. C. Pereira-C.
通讯作者：
C. C. Pereira-C.
影响因子：
9.5
作者：
BOOM, RM;VANDENBOOMGAARD, T;SMOLDERS, CA
通讯作者：
SMOLDERS, CA
影响因子：
10.9
作者：
Jiang, Lan Ying;Chung, Tai-Shung;Rajagopalan, Raj
通讯作者：
Rajagopalan, Raj
影响因子：
9.5
作者：
Xue-mei Li;Yunhui Ji;T. He;Matthias Wessling
通讯作者：
Xue-mei Li;Yunhui Ji;T. He;Matthias Wessling