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.

液态聚氨酯（PU）树脂用于形成防滑表面涂层。在这项工作中，我们通过通过高剪切混合掺入的几层石墨烯（FLG）纳米颗粒来增强PU树脂膜。如光学和X射线断层扫描所证明的，此过程可产生出色的色散。FLG不会明显改变PU的抗张强度或肖氏硬度，但是我们报道撕裂强度和杨氏模量适度增加了10％，同时断裂伸长率也有类似的下降。然而，在耐磨性方面观察到超过100％的显着改善。同时，我们报告静摩擦系数增加了25％，动摩擦系数增加了200％。这些结果加在一起，