Anticorrosive water borne paints free from zinc and with reduced phosphate content

被引：8
|
作者：
Roseili, Sol N. [1 ,3 ]
Lendvay-Gyorik, Gabriela [2 ]
Meszaros, Gabor [2 ]
Deya, Cecilia [1 ,3 ]
Romagnoli, Roberto [1 ,4 ]
机构：
[1] CIC CONICET, CIDEPINT Ctr Invest & Desarrollo Tecnol Pinturas, Calle 52 E-121 & 122, RA-1900 La Plata, Buenos Aires, Argentina
[2] Hungarian Acad Sci, Inst Mat & Environm Chem, Chem Res Ctr, Pusztaszeri Ut 59-67,POB 17, H-25 Budapest, Hungary
[3] Univ Nacl La Plata, Fac Ingn, Ave 7 877, RA-1900 La Plata, Buenos Aires, Argentina
[4] Univ Nacl La Plata, Fac Ciencias Exactas, Ave 7 877, RA-1900 La Plata, Buenos Aires, Argentina
来源：
PROGRESS IN ORGANIC COATINGS | 2017年 / 112卷
关键词：
Coatings; Electrochemical noise; FTIR; Corrosion; ION-EXCHANGE PIGMENTS; CORROSION-PROTECTION; ELECTROCHEMICAL IMPEDANCE; PRIMER PAINTS; STEEL; COATINGS; INHIBITION; BEHAVIOR; TRIPOLYPHOSPHATE; SPECTROSCOPY;
D O I：
10.1016/j.porgcoat.2017.04.023
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The objective of this research was to formulate water-borne epoxy coatings free from zinc and with reduced phosphate levels, replacing zinc phosphate by calcium acid phosphate. Lanthanum molybdate was incorporated as a green anticorrosive pigment to enhance paint anticorrosive performance. Paints were assessed by accelerated (salt spray and humidity chambers) and electrochemical tests (ionic resistance and electrochemical noise). Results suggested that zinc phosphate could be replaced by calcium acid phosphate and the phosphate content in the paint film reduced to one third. Lanthanum molybdate can act synergistically with phosphates.
引用
收藏
页码：27 / 36
页数：10
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