| 摘要 |
Disclosed are a structural sealant for a glass curtain wall and a preparation method therefor. A formula of the structural sealant comprises: hydroxyl-terminated polydimethylsiloxane, acrylic acid, aconitic acid, polypropylene powder, bis(3,4-diphenylmethylene)sorbitol, trimethoxyboroxine, 2-amino-N-cyclohexyl acetamide, vinyl tris(methylethylketoximino)silane, ethylene glycol glycidyl ether, dibutyltin mercaptide, a hollow glass bead, Methyltris(methylethylketoxime)silane, 3-triethoxysilylpropylamine, dibutyltin dilaurate, ammonium persulfate, ferric acetylacetonate, sodium silicate, dimethylbenzylcarbinyl acetate, pentaerythritol, and fluorocarbon resin FEVE. The present invention has the following beneficial effects: the structural sealant in the present invention is excellent in mechanical strength, does not need base coat, and has good cohesiveness, excellent comprehensive performance, good aging resistance and high displacement capability. The structural sealant has excellent flame resistance, and a small amount of flame retardant is added, so that the influence on comprehensive performances of the sealant is small. |
