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