The invention provides a two-component polysulfide sealant as well as a preparation method and application thereof. The two-component polysulfide sealant comprises a component A and a component B, the component A is prepared from the following raw materials: sulfydryl-terminated polysulfide raw rubber I, sulfydryl-terminated polysulfide raw rubber II, phenolic resin paste, calcium carbonate, a plasticizer, fumed silica, a silane coupling agent and polyester polyol; and the component B is prepared from the following raw materials: manganese dioxide, carbon black, a plasticizer, calcium carbonate and a curing accelerator. The double-component polysulfide sealant has excellent heat resistance, cold resistance, weather resistance and mechanical properties, and has good adhesive property to a low-surface-tension base material (such as an aluminum plate or a stainless steel plate).
本发明提供一种双组份聚硫密封胶及其制备方法和应用,所述双组份聚硫密封胶包括A组分和B组分;所述A组分的制备原料包括巯基封端聚硫原胶Ⅰ、巯基封端聚硫原胶Ⅱ、酚醛树脂糊、碳酸钙、增塑剂、气相二氧化硅、硅烷偶联剂和聚酯多元醇;所述B组分的制备原料包括二氧化锰、炭黑、增塑剂、碳酸钙、固化促进剂。所述双组份聚硫密封胶具有优异的耐热性、抗寒性、耐候性和力学性能,对低表面张力的基材(例如铝板或不锈钢板)的粘结性能好。
Two-component polysulfide sealant as well as preparation method and application thereof
一种双组份聚硫密封胶及其制备方法和应用
04.06.2024
Patent
Elektronische Ressource
Chinesisch
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