The surface mechanical behaviors of the PVA film with hydrogen bonds and the PMMA film were studied by nanoindentation. In contrast with the PMMA film

the obviouse displacement burst was observed in the load-displacement curves for the PVA film

the structural difference between the PVA and the PMMA suggests that the hydrogen bonds induced the appearing displacement burst in the PVA film. In order to prove the interdependency of the displacement burst with the hydrogen bonds

The single crystal of hydroquinone was prepared and the surface mechanical behaviors of the single crystal of hydroquinone also were studied through nanoindentation.The results show the single crystal of hydroquinone has cage structure which is composed of the hydrogen bonds

the obviouse displacement burst and creep burst were found in the load stage the load-displacement curves and in the displacement-time curves when holding load is less than the critical load

furthermore

the increased amount value of the displacement burst increases linearly with critical load

the displacement burst also associates with the loading rate simultaneously.