| abstract |
The invention discloses a green light-cured STPU resin, a preparation method and application thereof. The green light-curable STPU resin comprises a component A, a component B, a component C and a component D; the component A is prepared from polyether polyol, trimethylolpropane, toluene diisocyanate, sodium dodecyl benzene sulfonate, dibutyltin dilaurate, fully etherified melamine and a silane coupling agent; the component B is prepared from hyperbranched polyurethane acrylate and gamma-methacryloxypropyltrimethoxysilane/SiO 2 Sol and photoinitiator; the component C consists of gamma-urea propyl trimethoxy silane, stannous octoate and 1,3, 5-tri (4-tertiary butyl-3-hydroxy-2, 6-dimethyl benzyl) 1,3, 5-triazine-2, 4,6- (1H,3H,5H) -trione; the component D is prepared from nano calcium carbonate and nano SiO 2 And carbon black. The invention overcomes the defects of low curing efficiency, weak binding power and the like of the existing product, is easy for industrial production, and has simple application method and low cost. |