We present analysis of adhesion properties of angled polymer nanohairs with a wide range
of leaning angles from 0 to 45 and ultraviolet (UV)-curable polyurethane acrylate (PUA)
materials of two different elastic moduli (19.8 and 320 MPa). It is demonstrated that shear
adhesion and adhesion hysteresis can be greatly enhanced by increasing the leaning angle
of nanohairs both for soft and hard materials due to increased contact area and reduced
structural stiffness.