Abstract
AbstractIn this article, a cross‐linking network in poly(vinylidene fluoride) (PVDF)/poly(ethylene‐tetrafluoroethylene) copolymer (ETFE) blends was successfully created by electron beam irradiation. Thermal stability, mechanical properties, chemical structure, rheology properties, and crystallization behavior of irradiated samples were investigated. In particular, the PVDF/ETFE (10/90 wt%) blend irradiated with different dose exhibited better thermal stability and mechanical properties than pure ETFE. X‐ray photoelectron spectroscopy results demonstrated that the fluorinated composite system underwent cross‐linking and degradation reactions as a result of HF elimination and the formation of unsaturated structures and hydroperoxide species. Furthermore, the melting property of irradiated samples changed from liquid‐like behavior to pseudo‐solid‐like behavior. The degree of crystallinity of irradiated samples was found to increase at the range of 0–30 kGy and then clearly decreases with further increase in the irradiation dose. In general, our findings suggest that PVDF/ETFE blends treated with electron beam irradiation provide an opportunity to exploit their stability and durability for mechanically challenging applications.
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