High-barrier steaming-resistant aluminum laminated film and preparation method thereof

The invention discloses a high-barrier steaming-resistant aluminum laminated film and a preparation method thereof, and relates to the field of aluminum laminated films. The high-barrier steaming-resistant aluminum laminated film comprises a base film layer, a first polyurethane coating, an aluminum laminated barrier layer, a second polyurethane coating and a heat sealing layer, the base film layer is prepared from heat-resistant modified high-density polyethylene obtained by carrying out cross-linking reaction on high-density polyethylene, p-vinylbenzylamine and double-end acrylate silicone oil; the first polyurethane coating and the second polyurethane coating are both prepared from modified polyurethane paint, and the modified polyurethane paint comprises organic silicon modified polyurethane paint and water-borne epoxy resin paint; and the heat-sealing layer is prepared from low-density polyethylene and organic silicon modified low-density polyethylene obtained by cross-linking reaction of vinyl-terminate