Improving the performance of UV-curable coatings with carbon nanomaterials

eXPRESS Polymer Letters

Y. Jiang¹ 

关键词: nanomaterials;    polyurethane acrylate;    UV-curable coating;    carbon nanotube;    graphene oxide;   

DOI  :  10.3144/expresspolymlett.2018.53

学科分类：生物科学（综合）

来源: eXPRESS Polymer Letters

【 摘 要 】

By combining a trifunctional urethane acrylate synthesized from a hexamethylene diisocyanate trimer and caprolactoneacrylate with a bifunctional urethane acrylate prepared from hydroxyethyl acrylate and isophorone diisocyanate, anew reactive resin mixture was prepared, and trimethylolpropane triacrylate was chosen as the thinner to constitute a novelcoating matrix. Different amounts of multi-functionalized carbon nanotubes (CNTs) and graphene oxide (GO) were introducedinto the matrix and cured by ultraviolet radiation, producing different coatings. Utilizing the methods of Fourier transforminfrared (FTIR) spectroscopy, ultraviolet-visible (UV-VIS) spectroscopy, wide angle X-ray diffraction (WAXS) andthermogravimetric analysis (TGA), the chemical structures and physical properties of the coatings were analyzed. A seriesof ASTM methods, such as pencil hardness classification, RCA abrasion, crosscut adhesion test classification, and chemicalresistance rub testing, were applied to investigate the performances of the coatings. It was found that introducing a smallamount of carbon nanomaterials can improve the thermal stability, surface hardness, adhesion, abrasive resistance, and chemicalresistance performance of the UV-curable coatings. The reasons and mechanisms of the performance improvements arediscussed in this work.

【 授权许可】

CC BY