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Assessment of the properties of diethyl phosphite as a novel anticorrosion pigment in organic coatings

SYSNO ASEP	0472630
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Assessment of the properties of diethyl phosphite as a novel anticorrosion pigment in organic coatings
Author(s)	Nechvílová, K. (CZ) Kalendová, A. (CZ) Schmidová, E. (CZ) Bober, Patrycja (UMCH-V)_{RID, ORCID, SAI}
Source Title	Chemical Papers. - : Springer - ISSN 0366-6352 Roč. 71, č. 2 (2017), s. 423-438
Number of pages	16 s.
Language	eng - English
Country	SK - Slovakia
Keywords	diethyl phosphite ; conductive polymers ; polyaniline
Subject RIV	CD - Macromolecular Chemistry
OECD category	Polymer science
Institutional support	UMCH-V - RVO:61389013
UT WOS	000394523000020
EID SCOPUS	85006154602
DOI	10.1007/s11696-016-0085-4
Annotation	The aim of this work was to provide a first description of the behaviour of diethyl phosphite in organic coatings, description of their physico-mechanical properties as well as anticorrosion properties in the protection of steel substrates. The diethyl phosphite behaviour in the organic coatings depends on the volume concentration of the pigment. A polyaniline base was suspended in diethyl phosphite as a new reactant. The pigment so prepared was used as a corrosion inhibitor in model paints containing a solvent-based epoxy-ester resin as the binder. The organic coatings were applied to steel panels and to glass panels and subjected to mechanical tests, corrosion resistance tests and electrochemical tests. Furthermore, they were exposed to the environments of condensed steam, neutral salt solution mist, and sulphur dioxide-containing mist. The corrosion effects were evaluated and the organic coatings’ overall anticorrosion efficiency was calculated from the results. Ultimately, the optimum pigment volume concentration (PVC) at which the coatings provided the best anticorrosion protection was determined: it was PVC = 10 vol%, whereas the best mechanical resistance was observed at PVC = 5 vol%. The goal of the forthcoming work will be to optimise all the properties into a single pigment volume concentration.
Workplace	Institute of Macromolecular Chemistry
Contact	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Year of Publishing	2018

Number of the records: 1