Method for preparing modified ethylene-vinyl acetate copolymer, modified ethylene-vinyl acetate copolymer and application of modified ethylene-vinyl acetate copolymer

The invention relates to the field of high polymer materials, and discloses a method for preparing a modified ethylene-vinyl acetate copolymer, the modified ethylene-vinyl acetate copolymer and application of the modified ethylene-vinyl acetate copolymer. The method comprises the following steps: carrying out melt extrusion molding on an ethylene-vinyl acetate copolymer, low-density polyethylene, a silane coupling agent and an antioxidant in a twin-screw extruder to obtain the modified ethylene-vinyl acetate copolymer. When the modified ethylene-vinyl acetate copolymer prepared by the method provided by the invention is used as a bonding coating of the pre-coating film, a primer is not needed, so that the preparation process of the pre-coating film can be simplified, the coating amount of an adhesive is reduced, and the production efficiency of the pre-coating film is improved. 本发明涉及高分子材料领域，公开了一种制备改性乙烯-醋酸乙烯共聚物的方法、改性乙烯-醋酸乙烯共聚物及其应用。该方法包括：将乙烯-醋酸乙烯共聚物、低密度聚乙烯、硅烷偶联剂和抗氧剂在双螺杆挤出机中进行熔融挤出成型以得到改性乙烯-醋酸乙烯共聚物。采用本发明提供的方法制备得到