Synthesis of polyurethane adhesive with a new structure

Polyurethanes may be produced through various routes, the most important and useful methodbeing through the reaction between a polyol (an alcohol that has two or more hydroxyl groupsin a molecule) and a diisocyanate. In this study, by using two types of polyols and one type ofisocyanate, a polyurethane adhesive is first synthesized through stepwise polymerization, thento increase its efficiency by adding graphene oxide nanoparticles and graphene oxidefunctionalized with silicon oxide to the respective polyols and then Polyurethane adhesivesynthesis of a reinforced nanocomposite was obtained. Investigations and analyzes showedthat the adhesive combined with nanomaterials has a better performance than the adhesivealone. Also, among the two types of nanomaterials, silicon oxide graphene oxide nanomaterialshowed better performance.

کلیدواژه ها:

Step polymerization ، polyurethane nanocomposite adhesive ، polyol ، isocyanate