Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

New corrosion inhibitors based on epoxidized natural rubber for coating protection of metals under UV irradiation

New corrosion inhibitors based on epoxidized natural rubber for coating protection of metals... PurposeIn the present work, under severe conditions of an inert atmosphere and high temperature, epoxidized natural rubber (ENR) with 25 per cent epoxidation level reacts with different aliphatic amine compounds such as ethyl amine (EA), propyl amine (PA) and butyl amine (BA) to prepare ENR/EA, ENR/PA, ENR/BA compounds as, respectively. The produced compounds were characterized by Fourier transform infrared spectroscopy and oxirane oxygen content determination. Different concentrations of the produced compounds were added to epoxy and urethane acrylate coating formulations to evaluate them as corrosion inhibitors for mild steel under UV irradiation. Corrosion resistance tests and weight loss measurements of the coated steel panels were made. It was found that coating formulations containing the prepared ENR/EA compound could protect metal surface from corrosion, and corrosion inhibitors efficiency of the prepared compounds were arranged as follows: ENR/EA > ENR/PA > ENR/BA. The optimum concentrations for all inhibitors which give the best inhibition efficiency for corrosion are 0.4-0.6 phr.Design/methodology/approachCorrosion scratch tests were carried out according to ASTM D 1,654-92 (2000). The weight loss of coated steel was measured according to ASTM D 2,688-94 (1999). The measurement of film hardness was carried out with a Wolff–Wilborn pencil hardness tester according to ASTM D 3,363 (2000).FindingsIt was found that coating formulations containing the prepared ENR/EA compound could protect metal surface from corrosion and corrosion inhibitors efficiency of the prepared compounds were arranged as follows: ENR/EA > ENR/PA > ENR/BA. The optimum concentrations for all inhibitors are 0.4-0.6 g/100g coating.Originality/valueA highly efficient and economically corrosion inhibitors for mild steel were prepared from ENR and series of aliphatic amines. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Anti-Corrosion Methods and Materials Emerald Publishing

New corrosion inhibitors based on epoxidized natural rubber for coating protection of metals under UV irradiation

Mousaa, Issa; Radi, Hamdi
Anti-Corrosion Methods and Materials , Volume 64 (4): 8 – Jun 5, 2017
Download PDF
8 pages

Loading next page...
 
/lp/emerald-publishing/new-corrosion-inhibitors-based-on-epoxidized-natural-rubber-for-KY88iWpEc4
Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0003-5599
DOI
10.1108/ACMM-01-2016-1628
Publisher site
See Article on Publisher Site

Abstract

PurposeIn the present work, under severe conditions of an inert atmosphere and high temperature, epoxidized natural rubber (ENR) with 25 per cent epoxidation level reacts with different aliphatic amine compounds such as ethyl amine (EA), propyl amine (PA) and butyl amine (BA) to prepare ENR/EA, ENR/PA, ENR/BA compounds as, respectively. The produced compounds were characterized by Fourier transform infrared spectroscopy and oxirane oxygen content determination. Different concentrations of the produced compounds were added to epoxy and urethane acrylate coating formulations to evaluate them as corrosion inhibitors for mild steel under UV irradiation. Corrosion resistance tests and weight loss measurements of the coated steel panels were made. It was found that coating formulations containing the prepared ENR/EA compound could protect metal surface from corrosion, and corrosion inhibitors efficiency of the prepared compounds were arranged as follows: ENR/EA > ENR/PA > ENR/BA. The optimum concentrations for all inhibitors which give the best inhibition efficiency for corrosion are 0.4-0.6 phr.Design/methodology/approachCorrosion scratch tests were carried out according to ASTM D 1,654-92 (2000). The weight loss of coated steel was measured according to ASTM D 2,688-94 (1999). The measurement of film hardness was carried out with a Wolff–Wilborn pencil hardness tester according to ASTM D 3,363 (2000).FindingsIt was found that coating formulations containing the prepared ENR/EA compound could protect metal surface from corrosion and corrosion inhibitors efficiency of the prepared compounds were arranged as follows: ENR/EA > ENR/PA > ENR/BA. The optimum concentrations for all inhibitors are 0.4-0.6 g/100g coating.Originality/valueA highly efficient and economically corrosion inhibitors for mild steel were prepared from ENR and series of aliphatic amines.

Journal

Anti-Corrosion Methods and Materials – Emerald Publishing

Published: Jun 5, 2017

References

  • Vulcanization and crosslinking in elastomers
  • Corrosion protection with polyaniline and polypyrrole as anticorrosive additives for epoxy paint
  • Steel-protective paints free of anti-corrosive pigments: part 1: epoxidized fatty materials condensed with aliphatic amines
  • Waterborne methylamine adduct as corrosion inhibitor for surface coatings
  • Epoxidised natural rubber
  • Epoxidised natural rubber
  • Coatings based on electronic conducting polymers for corrosion protection of metals
  • Improving the adhesion between rubber and nylon by either epoxidation of the rubber or chemical pre-treatment of the nylon
  • Modifying organic coatings to provide corrosion resistance. Part II. Inorganic additives and inhibitors
  • Chemical demonstration of the randomness of epoxidation of natural rubber
  • Photoinitiated crosslinking polymerization
  • Alcoholysis of epoxidized polyisoprenes by direct opening of oxirane rings with alcohol derivatives 2: study on epoxidized 1,4-polyisoprene
  • Direct potentiometric titration of oxirane oxygen by hydrogen chloride-acetic acid
  • Partial conversion of epoxide groups to diols in epoxidized natural rubber
  • Modification of natural rubber latex with peracetic acid
  • Controlled viscosity by natural rubber modification