Preparation and properties of polytetrafluoroethylene/CaCO3 hybrid hollow fiber membranes
writer：Huang, Qinglin Xiao, Changfa Hu, Xiaoyu
keywords：PTFE, membrane, CaCO3, IFMs
source：期刊
specific source：Journal of Applied Polymer Science
Issue time：2012年
A novel method of preparing polytetrafluo-
roethylene (PTFE) hollow fiber membrane was presented
by utilizing poly (vinyl alcohol) (PVA) can form a gel of
two dimensional complex compounds with Boric acid
(H3BO3). Effects of H3BO3 on PTFE nascent hollow fiber
were investigated, and the results showed that the intro-
duction of H3BO3 effectively reduced the addition of
PVA. The configuration named ‘‘fibril’’ formed between
PVA and H3BO3 could be observed in nascent hollow
fiber by SEM (Scanning electronic microscopy). Further-
more, Calcium carbonate (CaCO3) particles (60 nm
90 nm) were introduced into PTFE matrix. The interfacial