Fouling-proof structure

A fouling-proof structure, comprising:

• an alcohol-resistant layer;
• and
• a water-based fouling-proof layer disposed on the alcohol-resistant layer,
• wherein the alcohol-resistant layer is formed by curing an alcohol-resistant combination by drying the alcohol-resistant combination at 90-120° C. for one to five minutes, and
• wherein the water-based fouling-proof layer is formed by curing a water-based fouling-proof combination by drying the water-based fouling-proof combination above 140° C. for one to five minutes,
• wherein the alcohol-resistant combination comprises:
• 30-50 weight percent of polyether and polyester aliphatic water-based polyurethane resin;
• 0.5-3 weight percent of wetting agent;
• 1-2 weight percent of aziridine crosslinker;
• 0.7-2.1 weight percent of polycarbodiimide crosslinker;
• and
• 41.9-67.8 weight percent of water;
• wherein the water-based fouling-proof combination comprises:
• 6.6-28.9 weight percent of polyether and polyester aliphatic and hydrolysis-resistant water-based PU resin;
• 43.6-58.5 weight percent of water;
• 12-15.3 weight percent of polymerized siloxanes;
• 1-2 weight percent of water-based polytetrafluoroethylene;
• and
• 1.4-2.0 weight percent of silicone oil.