Effects of number of substituents and molecular weight of polyamines on the non-cyanide alkaline zinc plating process

Autor:	Nguyen Van Khuong, Le Duc Bao, Truong Thi Nam, Le Ba Thang
Rok vydání:	2021
Předmět:	chemistry.chemical_compound Chemistry Plating Cyanide Scientific method chemistry.chemical_element Zinc Nuclear chemistry
Zdroj:	Vietnam Journal of Science and Technology. 59:57-65
ISSN:	2525-2518
DOI:	10.15625/2525-2518/59/1/15452
Popis:	The effects of the number of substituents and molecular weight of polyamines in the non-cyanide alkaline plating bath on the morphology, brightness and bright ranges of zinc electrodeposited coating and cathodic polarization, cyclic voltammogram on the non-cyanide alkaline zinc plating process were investigated. Cathodic polarization measurements showed that the polyamines all increased cathodic polarization of the plating process and shifted the zinc reduced potential to a more negative direction. However, cycle voltammogram curves of the 5 continuous cycles shows that the quaternary polyamine Q7-20 has a more stable adsorption and desorption processes than the secondary polyamine Bt18 has.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aac1a1c5c2dfa9a7b9af30ded97686c3 https://doi.org/10.15625/2525-2518/59/1/15452 Zobrazit plný text záznamu