摘要
选用了HXS-422、HXS-423二官能基、三官能基烷氧基硅烷封端的聚氨酯预聚体(简称SPU)为主剂制成A组份,以有机锡为固化催化剂,氨基硅烷为粘附促进剂制成B组份,组成双组份弹性密封胶。研究了二官能基与三官能基SPU聚合物,不同用量对密封胶的适用期和贮存稳定性的影响,以及粘附促进剂、固化催化剂用量对密封胶性能的影响。
A new kind of two-component elastomeric sealants is successfully developed by using difunctional, trifunctional silane （HXS-422, HXS-423 ） terminated polyurethane prepolymer （briefly called SPU） as part A,organic tins as curing catalyst and aminosilane adhesion promoter as part B. It is also studied that amounts of difunctional and trifunctional SPU prepolymers influence the sealant＇s pot life and storage stability,and amounts of the adhesion promoter and the curing catalyst influence the properties of the sealants.
出处
《中国胶粘剂》
CAS
2006年第3期32-33,38,共3页
China Adhesives
