New Anticorrosive Coating Compositions Based on 7- (2,3Dihydroxepropyl) Theophyline Modified Polyesteramide Resins as Binder for Industrial Applications - Egyptian Knowledge Bank

1389

New Anticorrosive Coating Compositions Based on 7- (2,3Dihydroxepropyl) Theophyline Modified Polyesteramide Resins as Binder for Industrial Applications

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Last updated: 01 Jan 2025

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Abstract

NEW modified anti-corrosive polyesteramide resins were obtained by condensation polymerization reaction between phthalic anhydride (PA) and N, N- bis - (2-hydroxyethyl) linseed oil fatty acid amide (HELA) which was partially replaced with 7- (2,3dihydroxepropyl) theophyline as the ingredient source of the polyol used. The structure of the resin was confirmed by FT-IR spectral studies. The coatings of 40 +/- 5 μm thickness were applied to the surface of glass panels and mild steel strips by means of a brush. The coating performance of the resins was evaluated using international standard test methods (ASTM) and involved the measurement of phyisco- mechanical properties such as viscosity, drying time, specular gloss, pencil hardness, adhesion, flexibility and impact resistance. Chemical resistance of the resins to water, acid, alkali and solvent was also evaluated to ascertain their suitability as a surface coatings vehicle. The results show that the modification enhances both phyisco- mechanical and chemical properties. The resins were incorporated within primer formulations and evaluated as anti-corrosive single coatings. The results illustrate that the introduction of 7- (2,3dihydroxepropyl)theophyline, containing a theophyline ring, within the resin structure, enhances the corrosion resistance performance of polyesteramide resins.

DOI

10.21608/ejchem.2011.1389

Keywords

Polyesteramide, 7-(2, 3Dihydroxepropyl) Theophyline, Theophyline ring, Corrosion inhibition, Anticorrosive coating and Surface coating

Volume

Article Issue

Related Issue

304

Issue Date

2012-04-01

Receive Date

2011-05-31

Publish Date

2011-04-30

Page Start

205

Page End

222

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 54_Issue 2_Pages 205-222.pdf

PDF . 473.4kB

Link

https://ejchem.journals.ekb.eg/article_1389.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=1389

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Type Code

292

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

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