| abstract |
The present invention relates to the technical field of sealants, in particular, to a silane-terminated polyether sealant, a preparation method therefor and an application thereof. The sealant provided by the present invention comprises the following components in percentage by mass: silane-terminated polyether: 10-35; a plasticizer: 10-30; solid powder: 45-60; a dehydrating agent: 1.0-2.5; a coupling agent: 0.5-2.0; an auxiliary additive: 0.5-3.0; and a catalyst: 0.05-1.0. The silane-terminated polyether sealant prepared in the present invention has uniform dispersion, moderate tensile strength, high elongation, good elastic recovery and excellent adhesion, is environmentally friendly and has good biocompatibility, and can meet market demand in the prefabricated construction industry. |