Electrical and barrier properties of modified polyaniline coating films and its effects on the corrosion protection of mild steel / Amirah Amalina Ahmad Tarmizi

Ahmad Tarmizi, Amirah Amalina (2017) Electrical and barrier properties of modified polyaniline coating films and its effects on the corrosion protection of mild steel / Amirah Amalina Ahmad Tarmizi. In: The Doctoral Research Abstracts. IGS Biannual Publication, 12 (12). Institute of Graduate Studies, Shah Alam.

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ABS_AMIRAH AMALINA AHMAD TARMIZI TDRA VOL 12 IGS 17.pdf - Submitted Version

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Abstract

The study investigated the coating properties of polyaniline (PANI), polyaniline with nano silica (PANI nSi) and polyaniline with 3-amino silane modified nano silica (PANI 3-APS modified nano silica). Investigation were carried out on the effects of nano silica and amino-silane modified nano silica fillers on the structure, morphology and its influence on the electrical and ionic barrier properties of polyaniline. Fourier Transform Infrared (FTIR) showed the successful formation of PANI, PANI nSi and PANI 3-APS modified nano silica. Correlation between concentration of acid and fillers weight ratio with conductivity were studied. The electrical conductivity of all samples was determined using the bulk resistance value obtained from the Nyquist plot in the frequency range of 0.1 Hz to 100 MHz. PANI prepared in 0.1 M oxalic acid shows the highest room temperature electrical conductivity value of, 2.52 x 10-6 S cm-1. The highest electrical conductivity of PANI nSi was 2.4 x10-4 S cm-1 for PANI containing 20%w/w nano silica fillers. For PANI 3-APS modified nano silica, PANI added with 20%w/w of 3-APS modified nano silica fillers exhibit the highest conductivity values which were 4.0 x10-6 S cm-1. PANI, PANI nSi and PANI 3-APS modified nano silica with the optimum condition was selected for further characterization. The study also calculated the conductivity of all selected samples in wet condition. The transference numbers determined the conductivity behaviour of all chosen samples in dry and wet conditions. The transference numbers were calculated using Wagner’s polarization method...

Item Type: Book Section
Creators:
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Ahmad Tarmizi, Amirah AmalinaUNSPECIFIED
Subjects: Q Science > QD Chemistry > Metal complexes. Layered double hydroxides
Q Science > QD Chemistry > Analytical chemistry
Divisions: Institut Pengajian Siswazah (IPSis) : Institute of Graduate Studies (IGS)
Series Name: IGS Biannual Publication
Volume: 12
Number: 12
Item ID: 18918
Uncontrolled Keywords: Abstract; Abstract of Thesis; Newsletter; Research information; Doctoral graduates; IPSis; IGS; UiTM; Polyaniline coating films
Last Modified: 25 Jan 2018 06:07
Depositing User: Admin Pendigitan 2 PTAR
URI: http://ir.uitm.edu.my/id/eprint/18918

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