• 文献标题:   High-grip and hard-wearing graphene reinforced polyurethane coatings
  • 文献类型:   Article
  • 作  者:   ALBERTO M, ILIUT M, PITCHAN MK, BEHNSEN J, VIJAYARAGHAVAN A
  • 作者关键词:   graphene, polyurethane, composite, friction, abrasion
  • 出版物名称:   COMPOSITES PART BENGINEERING
  • ISSN:   1359-8368 EI 1879-1069
  • 通讯作者地址:  
  • 被引频次:   8
  • DOI:   10.1016/j.compositesb.2021.108727 EA MAR 2021
  • 出版年:   2021

▎ 摘  要

Liquid polyurethane (PU) resins are used to form anti-slip surface coatings. In this work, we reinforce PU resin films with few-layer graphene (FLG) nanoparticles incorporated by high-shear mixing. This process gives excellent dispersion as evidenced by optical and X-ray tomography. The FLG does not appreciably change the tensile strength or Shore hardness of the PU, but we report modest increase of 10% in tear strength and Young's modulus, accompanied by a similar decrease in elongation to failure. However, significant improvement of over 100% is observed in the abrasion resistance. At the same time, we report a 25% increase in the coefficient of static friction and 200% increase in the coefficient of dynamic friction. These results, taken together, suggests that graphene can significantly improve the grip and durability of PU anti-slip coatings, without significantly affecting the other mechanical properties of the coating.