Silane modified polyether sealant as well as preparation method and application thereof

The invention discloses a silane modified polyether sealant as well as a preparation method and application of the silane modified polyether sealant, and belongs to the technical field of sealants. Comprising the following components in parts by weight: 5-10 parts of silane modified polyurethane resin, 10-30 parts of silane modified polyether resin A, 10-30 parts of silane modified polyether resin B, 5-30 parts of a plasticizer, 20-40 parts of a filler, 5-10 parts of fumed silica and 0.5-1 part of a catalyst, the silane modified polyurethane resin is obtained by reaction of polycarbonate polyol and isocyanate methyl triethoxy silane, and the molar ratio of hydroxyl in the polycarbonate polyol to isocyanate group in the isocyanate methyl triethoxy silane is 1: (1-2). The sealant provided by the invention has excellent tear strength and mechanical properties, and can be used for improving the displacement deformation capability of the joint part of the building. 本发明公开了一种硅烷改性聚醚密封胶及其制备方法和应用，属于密封胶技术领域，所述的硅烷改性聚醚密封胶