Pressure-sensitive adhesive used for polyethylene protective film and capable of eliminating crystal points and preparation process thereof

The invention provides a pressure-sensitive adhesive used for a polyethylene protective film and capable of eliminating crystal points and a preparation process thereof. The pressure-sensitive adhesive comprises the components: isooctyl acrylate, butyl acrylate, methyl acrylate, hydroxyethyl acrylate, glycidyl methacrylate, acrylamide, ethyl acetate, toluene, methanol, an initiator and a plasticizer. The pressure-sensitive adhesive components are added batch by batch in the preparation process, and a right time is selected to add the initiator and the plasticizer. The prepared pressure-sensitive adhesive can ensure that tiny polyethylene particles in a protective film can be molten completely, punctate polyethylene crystal grains cannot be left on the polyethylene film, and the appearanceand use of the polyethylene protective film are more popular in the market. 本发明提供了种聚乙烯保护膜用可消除晶点的压敏胶及其制备工艺，压敏胶成分包括丙烯酸异辛酯，丙烯酸丁酯，丙烯酸甲酯，丙烯酸羟乙酯，甲基丙烯酸缩水甘油酯，丙烯酰胺，乙酸乙酯，甲苯，甲醇，引发剂和增塑剂。压敏胶成分在制备过程中分批次加入并且引发剂和增塑剂选择合适时机加入，制备的压敏胶可以保证保护膜内微小的