ADDITIVE FOR CHLORINE-BASED ELECTROGALVANIZING SOLUTION AND ELECTROGALVANIZING SOLUTION CONTAINING THE SAME

摘要

PURPOSE: An additive for chlorine-based electrogalvanizing solution is provided to improve both adhesion and surface roughness of galvanized coat, and an electrogalvanizing solution containing the same is also provided. CONSTITUTION: The chlorine-based electrogalvanizing solution for improved adhesion and surface roughness is characterized in that it contains an additive comprising 100 parts by weight of 5 to 20 wt.% of aqueous methoxypolyethyleneglycol (CH3(OCH2CH2)nOH) solution; 0.5 to 2.5 parts by weight of aromatic acid; and 2 to 15 g/L of boron, wherein the aqueous methoxypolyethyleneglycol (CH3(OCH2CH2)nOH) solution contains more than one methoxypolyethyleneglycol whose n number is in the range of 5 to 20 and more than one methoxypolyethyleneglycol whose n number is in the range of 20 to 35, and its weight ratio is 1:2 to 1:4.