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Titolo:
Polymeric corrosion inhibitors for copper and brass pigments
Autore:
Muller, B; Triantafillidis, D;
Indirizzi:
Fachhsch Esslingen, Hsch Tech, D-73728 Esslingen, Germany Fachhsch Esslingen Esslingen Germany D-73728 D-73728 Esslingen, Germany
Titolo Testata:
JOURNAL OF APPLIED POLYMER SCIENCE
fascicolo: 3, volume: 80, anno: 2001,
pagine: 475 - 483
SICI:
0021-8995(20010418)80:3<475:PCIFCA>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
AQUEOUS ALKALINE MEDIA; ALUMINUM PIGMENT; ZINC PIGMENTS; COPOLYMERS;
Keywords:
copper and brass pigments; oxygen absorption; corrosion inhibition; styrene-maleic acid copolymers; styrene-acrylate copolymers;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Muller, B Fachhsch Esslingen, Hsch Tech, Kanalstr 33, D-73728 Esslingen, Germany Fachhsch Esslingen Kanalstr 33 Esslingen Germany D-73728 ermany
Citazione:
B. Muller e D. Triantafillidis, "Polymeric corrosion inhibitors for copper and brass pigments", J APPL POLY, 80(3), 2001, pp. 475-483

Abstract

Copper and brass pigments corrode in aqueous alkaline media with the absorption of oxygen that can be measured gasvolumetrically. These corrosion reactions can be inhibited by certain polymers; the metallic sparkle and the color of the pigments is preserved. The brass pigment is inhibited more effectively than the copper pigment. Some low-molecular mass styrene-maleic acid (SMA) copolymers are efficient corrosion inhibitors; a low acid number isnecessary but not sufficient for corrosion inhibition. At pH 8.5 there is a potential correlation between the acid number of the low-molecular mass SMA and the oxygen volumes absorbed from brass pigment dispersions; oxygen volumes decrease with decreasing acid number. Furthermore, increasing copolymer addition effects an increase of corrosion inhibition. Polyacrylic acids, polyvinyl alcohols and high-molecular mass SMA copolymers are ineffective. The most efficient group of polymers examined in this study are the styrene-acrylate copolymers because by addition of these the overall lowest volumes of oxygen were absorbed by the metal pigments. (C) 2001 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 01:57:24