期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：2
页码：1-10
DOI：10.1088/1755-1315/252/2/022073
出版社：IOP Publishing
摘要：Carbonyl iron powder/polyaniline (CIP/PANI) composites were prepared by in-situ polymerization. High molecular weight PVP-K90, low molecular weight PVP-K30 and small molecular surfactant Twain-20 were used as space stabilizers for dispersion polymerization. The effects of different kinds of space stabilizers and the concentration of PVP-K90 on the in-situ deposition of PANI on the surface of carbonyl iron powder were investigated. The effect of film formation is briefly discussed and its stability mechanism is discussed. The results showed that CIP/PANI core-shell structure composites with good morphology could be prepared by dispersion polymerization with high molecular weight PVP-K90 as space stabilizer, and polyaniline film formation could not be well stabilized by low molecular weight PVP and small molecular surfactant. The conductivity of the CIP/PANI composites changed little with the concentration and type of space stabilizers, about 10 −2 S cm−1.
