

FOLLOWUS
College of Polymer Science and Engineering, Sichuan University, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
wkestar@scu.edu.cn (K.W.)
qiangfu@scu.edu.cn (Q.F.)
Received:06 February 2018,
Revised:2018-3-8,
Accepted:19 March 2018,
Online First:23 April 2018,
Published:2018-11
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Citation: Pu, S. Q.; Guo, S.; Wang, K.; Fu, Q. Largely Improved Stretch Ductility and β-Form Room-temperature Durability of Poly(vinylidene fluoride) by Incorporating Aliphatic Polyketone. Chinese J. Polym. Sci. 2018, 36(11), 1277–1285.
Shui-Qin Pu, Shuo Guo, Ke Wang, et al. Largely Improved Stretch Ductility and
Citation: Pu, S. Q.; Guo, S.; Wang, K.; Fu, Q. Largely Improved Stretch Ductility and β-Form Room-temperature Durability of Poly(vinylidene fluoride) by Incorporating Aliphatic Polyketone. Chinese J. Polym. Sci. 2018, 36(11), 1277–1285. DOI: 10.1007/s10118-018-2134-7.
Shui-Qin Pu, Shuo Guo, Ke Wang, et al. Largely Improved Stretch Ductility and
In this study
we attempt to prepare a new blending system of poly(vinylidene fluoride) (PVDF) and aliphatic polyketone (POK) by melt compounding. The latter is a promising engineering plastic with comprehensive mechanical performances. When POK acted as minor phase to homogeneously disperse in and intimately contact with PVDF matrix
the brittle tensile behavior of neat PVDF transferred into a remarkably flexible manner (the elongation at break increased for 20 times)
and more interestingly
the room-temperature durability of
β
-form PVDF in the uniaxially drawn blend film was obviously better than that in the neat PVDF film. Fourier transform infrared spectroscopy revealed that specific dipole interaction existed between CF
2
group of PVDF and C=O group of POK. The intermolecular dipolar interaction induced good compatibility in the PVDF/POK blends
as evidently proved by fine two-phase morphology and decreased melting points of POK crystals. Therefore
the good compatibility and interfacial enhancement are responsible for the improvement of the stretch ductility and
β
-form room-temperature durability of the PVDF/POK blends.
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