Vízhígítású festékekbol kialakított bevonatok vizsgálata elektrokémiai impedanciával és gravimetriával

Gabriella Gyorik-Lendvayné, T. Pajkossy, Béla Lengyel

Research output: Article

Abstract

Two statements were found on corrosion protection properties of coatings from water-borne paints. The first is about the physically and the second one is about the physically and oxidative way becoming dry coatings. 1. According to the EIS studies the applied wet-dry cycling resulted significant improvement by physically dried paints on basis of styrole-acrylate systems, what was interpreted with the lost of water dissolved components. The statement stays in agreement with melioration in time of coatings used in outdoor. 2. On the basis of gravimetric studies can be stated that the two types of resin films are able to take up more water. The inclusion of water is slow the giving down is faster. The phenomenon is interpreted by swelling of resin with water and so hinders the further water inclusion in deeper layers. By drying the swelled resin particles lose water at first on the air/resin boundaries, making way for the water to leave the deeper layers. So by outdoor utilization (wet-dry cycling) on the paint/metal boundary is more difficult to reach for the humidity. Therefore the corrosion is less probable. This is the reason that in spite of the fact of much humidity uptake these coatings make surprising good corrosion protecting activity by outdoor use in wet-dry conditions.

Original languageHungarian
Pages (from-to)157-161
Number of pages5
JournalKorrozios Figyelo
Volume45
Issue number5
Publication statusPublished - 2005

Fingerprint

Water borne coatings
Coatings
Water
Resins
Paint
Atmospheric humidity
Corrosion
Corrosion protection
Swelling
Drying
Metals

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Vízhígítású festékekbol kialakított bevonatok vizsgálata elektrokémiai impedanciával és gravimetriával. / Gyorik-Lendvayné, Gabriella; Pajkossy, T.; Lengyel, Béla.

In: Korrozios Figyelo, Vol. 45, No. 5, 2005, p. 157-161.

Research output: Article

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