1 results about "Vinyl pyridine" patented technology

The invention belongs to the technical field of etching antennas, and particularly relates to a corrosion inhibitor for reducing lateral etching of etching antennas. The corrosion inhibitor is prepared from the following raw materials in parts by weight: 3-7 parts of urotropine (hexamethylenetetramine), 2-5 parts of thiourea, 16-28 parts of chlorinated poly (N-carboxymethyl-4-vinyl pyridine) salt,7-10 parts of EDTA (ethylene diamine tetraacetic acid), 6.5-10.5 parts of maleic anhydride, 4-8 parts of citric acid, 6-8 parts of ascorbic acid, 8-12 parts of sodium percarbonate, 2-5 parts of polyethylene glycol and 28-48 parts of deionized water. The corrosion inhibitor is non-toxic and harmless, the overall etching speed can be increased, meanwhile, the local etching speed is decreased, lateral etching can be reduced as much as possible while it is guaranteed that etching is thorough in the process of overall etching, and the etching process can be operated stably and evenly.