Polymer Coatings Containing Core-Shell Pigments with Polyaniline Shell

Pugacheva, T. A.; Курбатов, В. Г.; Golikov, I.V.; Ilin, Alexander; Indeikin, E. A.

doi:10.1134/s1070427219120137

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…A variety of publications reported the high anticorrosive performance of such structures [ 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. Along with fine protective properties, PANi-containing shell structures possess increased electrical conductivity [ 21 , 22 , 23 , 24 , 25 , 26 ], which can help to obtain antistatic coatings [ 27 , 28 , 29 , 30 , 31 , 32 ]. However, optical and physical–technical pigment properties play a significant role in the development of the composition of paints and varnishes.…”

Section: Introductionmentioning

confidence: 99%

Core/Shell Pigments with Polyaniline Shell: Optical and Physical–Technical Properties

et al. 2022

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Core/shell pigments allow for the combination of the active anti-corrosion effect of the shell and the barrier effect of the core. This makes it possible to obtain anti-corrosion pigments, with a high—protective effect and low toxicity. Thus, the need for a comprehensive study of the properties of these pigments grows more urgent, before their application to paints and varnishes. The hiding power of core/shell pigments comes close to the one of pure polyaniline (PANi), when the PANi content in the pigment reaches 50 wt.%, with sulfuric and phosphoric acids used as dopants. This paper, also, shows that the blackness value of core/shell pigments with 10 wt.% PANi is around 35 and constant; for pure PANi, their blackness value is 40. When PANi content is 5 wt.%, kaolin-based pigment shows the lowest blackness, which happens due to a generally higher whiteness of kaolin. However, when the PANi content surpasses 10 wt.%, there seems to be no influence on the blackness of the core/shell pigments. The core/shell pigment with a 20 wt.% PANi is, optically, identical to a black-iron-oxide pigment. An increase in the PANi content of the core/shell pigment leads to an increase in the oil absorption of the samples. It was found that the dispersion process would be the most energy efficient for core/shell pigments, containing kaolin and talc as a core.

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Section: Introductionmentioning

confidence: 99%

Core/Shell Pigments with Polyaniline Shell: Optical and Physical–Technical Properties

et al. 2022

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“…The introduction of inorganic fillers into the reaction mass leads to the formation of polyaniline (PANi) on their surface in the form of a thin shell. Such products have good anticorrosive properties both in an individual form and in the composition of polymeric materials [7][8][9][10]. The presence of a polymer shell on the surface of an inert carrier leads to a change in the physicotechnical properties of the resulting products due to a change in the specific surface area.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Inorganic Fillers on the Polyaniline Synthesis

Pugacheva

Курбатов

Indeikin

2020

KEM

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The kinetics of the synthesis of polyaniline in the presence of inorganic fillers was studied. It is shown that the acid-base surface properties of the inorganic filler affect the polymerization time. The introduction of a filler in the reaction mass containing aniline leads to a decrease in the induction period of oxidative polymerization. The decrease in the induction period is due to the fact that aniline is adsorbed on the surface of the filler. This leads to the fact that polyaniline is formed as a thin layer on the surface of the carrier. With a further increase in the content of inorganic filler, the time of the induction period increases. This is due to the fact that the surface of talc has a basic character. The use of mica as an inorganic filler leads to a decrease in the induction period of polymerization in the entire range of the carrier content studied.

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Polymer Coatings Containing Core-Shell Pigments with Polyaniline Shell

Cited by 2 publications

References 16 publications

Core/Shell Pigments with Polyaniline Shell: Optical and Physical–Technical Properties

Core/Shell Pigments with Polyaniline Shell: Optical and Physical–Technical Properties

The Effect of Inorganic Fillers on the Polyaniline Synthesis

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