▎ 摘 要
NOVELTY - Waterborne polyurethane composite material preparation involves synthesizing graphene oxide layer. The obtained synthesized graphene oxide layer is washed with deionized water. The obtained graphene oxide layer is cooled at 0-10 degrees C. The obtained cooled product is dried. USE - Method for preparing waterborne polyurethane composite material (claimed). ADVANTAGE - The method enables to prepare waterborne polyurethane composite material that has high strength and heat stability.