It is meaningful and practicable to design poly(vinylidene fluoride) (PVDF)/silicone rubber (SR) blends to partly substitute the expensive synthetic fluorosilicone materials. Unfortunately, there is a significant difference between the surface energies of PVDF and SR phases, which results in an unstable interface and deteriorates the mechanical properties of their blends. In this paper, we introduced nitrile butadiene rubber (NBR) into PVDF/SR blend to serve as an interlayer which reduced the direct contact between PVDF and SR phases. Formation of the stronger NBR/PVDF interface was beneficial to the impact energy transfer, which significantly improved the toughness of the blends. It was found that the two-step method was better than the one-step method. We hope our study could open up an avenue to design a super-toughened fluorosilicone blend, and, also contribute to solve the problem of poor interfaces in multicomponent polymer blends. (C) 2017 Elsevier B.V. All rights reserved.