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- Title
Intercalated Polyaniline/Halloysite Nanocomposites by a Solvent-Free Mechanochemical Method.
- Authors
Zheng, Hao; Cheng, Huijun; Zhou, Lu; Ye, Ying; Chen, Jianfang
- Abstract
Intercalated polyaniline (PANI)/halloysite nanocomposites were prepared by pretreatment technology and mechanochemical synthesis method under solvent-free condition. X-ray diffraction (XRD) analysis revealed that PANI chains have successfully intercalated into the interlayers of halloysite, which was enlightened by the increased basal spacing of halloysite from 10.0 Å to 14.7 Å in the as-synthesized nanocomposites. The Fourier transform infrared (FT-IR) and the UV-Vis spectra verified the coexistence of PANI and halloysite in the nanocomposites as well as the interaction between the two components. Results from scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed that halloysite in the nanocomposites became expanded, which further indicated the successful intercalation of PANI. The thermal stability of PANI/halloysite nanocomposites was examined using thermogravimetric analysis (TGA) and the results showed improved thermal stability of PANI in the resulting nanocomposites due to the retardation effect of halloysite for the degradation of PANI. Moreover, panel experiment was carried out under simulated marine environment to evaluate the anticorrosion effect of the nanocomposites, which showed a better anticorrosive effect than pure epoxy resin coating. Intercalated polyaniline/halloysite nanocomposite was prepared by pretreatment technology and in-situ free-solvent mechanochemical intercalation method. X-ray diffraction analysis confirmed that PANI chains were intercalated successfully into the interlayers of halloysite, which was enlightened by increased basal spacing of halloysite from 10.0 Å to 14.7 Å. The results from SEM and TEM images revealed that halloysite in the nanocomposite became expanded, which further confirmed the successful intercalation of PANI into halloysite. The synthesized nanocomposites showed excellent thermal stability and electrical conductivities.
- Subjects
POLYANILINES; HALLOYSITE; NANOCOMPOSITE materials; FOURIER transform infrared spectroscopy; SCANNING electron microscopy; TRANSMISSION electron microscopy
- Publication
NANO, 2016, Vol 11, Issue 10, p-1
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292016501125