Single-component solvent-free adhesive for compounding double-barrier cooking material and preparation method and application thereof

The invention discloses a single-component solvent-free adhesive for compounding a double-barrier cooking material. The adhesive is an isocyanate-terminated single component, When the adhesive is used, the single-component solvent-free adhesive is used for compounding the double-barrier cooking material PET, PA, aluminum foil, RCPP and the like. The compounded material is required to be good in appearance and free of white-point bubbles and the like, and the product can resist boiling at 125 DEG C for more than 40 minutes. The single-component solvent-free polyurethane adhesive is an isocyanate-terminated prepolymer prepared from isocyanate, universal polyol, bisphenol A modified polyol and an auxiliary agent. The invention also discloses a preparation method and application of the single-component solvent-free polyurethane adhesive. The coating temperature of the laminating film is 60-100 DEG C and is adjusted according to the use requirements of different materials. The adhesive hasthe advantages that the s