Effect of Space Stabilizer on In-Situ Deposition of Polyaniline on Carbonyl Iron Powder

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Zhang, Wanjun^1^2^3^4 ; Zhang, Feng^1 ; Zhang, Jingxuan^1 ; Zhang, Jingyi^2 ; Zhang, Jingyan^2

Quanzhou Institute of Information Engineering, Fujian

362000, China^1

Qingyang Xinyuan Engineering Company Limited, Gansu

745000, China^2

Lanzhou Industry and Equipment Company Limited, Gansu

730050, China^3

Xi'An Jiao Tong University, Shaanxi

710049, China^4

关键词: Carbonyl iron powder;    Core shell structure;    Dispersion polymerization;    High molecular weight;    In-situ deposition;    In-situ polymerization;    Low molecular weight;    Stability mechanisms;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/2/022073/pdf
DOI  :  10.1088/1755-1315/252/2/022073

来源: IOP

【 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.