The treatment of aluminium pigments with inorganic polymers for environment-friendly applications

Draga Dragnea, Dragos Gudovan, Elena Zaharia, Costin-Sorin Bildea

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Aluminium pigments are used in industrial and decorative coatings, automotive industry and printing inks. The encapsulation of aluminium pigments is used because the industry wants to avoid the organic solvents, for environmental reasons, by shifting towards water-borne systems. However, aluminium pigments easily react with water and a large amount of hydrogen is released leading to degradation of optical properties. This work presents experimental results concerning the encapsulation of aluminium pigments in silica matrices, by a sol-gel method using TEOS as precursor and ethylendiamine or ammonia as catalysts for the hydrolysis and condensation reactions. The samples of encapsulated pigments were characterized by gas stability tests: a boiling method and a gassing method.

Original languageEnglish
Pages (from-to)3353-3360
Number of pages8
JournalRevista de Chimie
Volume69
Issue number12
Publication statusPublished - Dec 1 2018

Fingerprint

Inorganic polymers
Aluminum
Pigments
Encapsulation
Condensation reactions
Water
Automotive industry
Ammonia
Ink
Silicon Dioxide
Organic solvents
Boiling liquids
Sol-gel process
Hydrogen
Hydrolysis
Optical properties
Gases
Degradation
Coatings
Catalysts

Keywords

  • Aluminium pigments
  • Coatings
  • Encapsulation
  • Sol-gel process

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Dragnea, D., Gudovan, D., Zaharia, E., & Bildea, C-S. (2018). The treatment of aluminium pigments with inorganic polymers for environment-friendly applications. Revista de Chimie, 69(12), 3353-3360.

The treatment of aluminium pigments with inorganic polymers for environment-friendly applications. / Dragnea, Draga; Gudovan, Dragos; Zaharia, Elena; Bildea, Costin-Sorin.

In: Revista de Chimie, Vol. 69, No. 12, 01.12.2018, p. 3353-3360.

Research output: Contribution to journalArticle

Dragnea, D, Gudovan, D, Zaharia, E & Bildea, C-S 2018, 'The treatment of aluminium pigments with inorganic polymers for environment-friendly applications', Revista de Chimie, vol. 69, no. 12, pp. 3353-3360.
Dragnea D, Gudovan D, Zaharia E, Bildea C-S. The treatment of aluminium pigments with inorganic polymers for environment-friendly applications. Revista de Chimie. 2018 Dec 1;69(12):3353-3360.
Dragnea, Draga ; Gudovan, Dragos ; Zaharia, Elena ; Bildea, Costin-Sorin. / The treatment of aluminium pigments with inorganic polymers for environment-friendly applications. In: Revista de Chimie. 2018 ; Vol. 69, No. 12. pp. 3353-3360.
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