Synthesis and Application of High-Speed Solvent-Free Polyurethane Adhesive for High Barrier Flexible Packaging
In order to meet the requirements of rapid composite for high barrier flexible packaging,a solvent-free polyurethane adhesive suitable for high barrier flexible packaging and high-speed composite was synthesized by independently designing prepolymers,and designing chain extension to prepare NCO and OH components.Studied the effects of R value and reaction temperature on the lifespan and reaction rate of adhesive discs,as well as the effects of different composite speeds on the appearance,peel strength,and heat sealing strength of high barrier composite structures.The results showed that a solvent-free polyurethane adhesive suitable for high barrier multi-layer and high-speed composite structure was successfully developed.
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维普
