Method For Preparing Carbon Nanotubes Graphene Modified Aqueous Polyurethane Coatings and Adhesives

The present invention discloses a method for preparing carbon nanotubes graphene modified aqueous polyurethane coatings and adhesives: under the presence of dibutyltin dilaurate as catalysts, mixing polytetrahydrofuran ether glycol with isophorone diisocyanate, reacting at 60° C. to 80° C., adding 2...

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Hauptverfasser: HOU Lijie, WANG Yanqing, QIAN Shengxu, TANG Zhihai, WANG Quanjie, ZHANG Mengmeng, DING Haiyan, LIU Guilin, DUAN Baorong
Format: Patent
Sprache:eng
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Zusammenfassung:The present invention discloses a method for preparing carbon nanotubes graphene modified aqueous polyurethane coatings and adhesives: under the presence of dibutyltin dilaurate as catalysts, mixing polytetrahydrofuran ether glycol with isophorone diisocyanate, reacting at 60° C. to 80° C., adding 2-sulfobenzoic anhydride, carboxylated carbon nanotubes and graphene sheet into the mixture, reacting at 90° C. for 2 hours, and then polyurethane prepolymer A is obtained; adding chain extender and acetone into prepolymer A, reacting at 65° C. to 75° C., adding D-panthenol and 2,4,6-trihydroxy benzoic acid, reacting at 75° C. to 85° C. for 0.5 to 2 hours, adding triethylamine and benzamide for neutralization, reacting for 30-50 min, adding water for emulsification, and then carbon nanotubes graphene modified aqueous polyurethane coatings and adhesives are obtained. The prepared polyurethane is environment-friendly and low cost, can be wildly used as adhesives on plastic, glass, paper-making and textiles.