Modified organic silicon sealant and application thereof

The invention discloses a modified organic silicon sealant as well as a preparation method and application thereof, and belongs to the technical field of sealing materials. The sealant comprises the following components in parts by weight: 50-100 parts of acrylic acid modified siloxy-terminated polyether, 10-50 parts of a plasticizer, 2-10 parts of a thixotropic agent, 20-200 parts of filler, 0.5-3 parts of a water removal agent, 1-4 parts of an adhesion promoter and 0.1-0.5 part of a catalyst. The modified organic silicon sealant can be used as a sealant for bonding a touch screen and a frame shell, replaces a traditional touch screen bonding double-sided adhesive tape, has excellent sealing performance and high initial adhesion, can improve bonding precision and production efficiency, and realizes automation and mechanization of a production line. 本发明公开了一种改性有机硅密封胶及其制备方法与应用，属于密封材料技术领域。该密封胶包含以下重量份的组分：丙烯酸改性端硅烷氧基聚醚50～100份，增塑剂10～50份，触变剂2～10份，填料20～200份，除水剂0.5～3份，粘接力促进剂1～4份，催化剂0.1～0.5份。本发明的上述改性有机硅密封胶可作为触摸屏与边框壳体贴合的