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Appl. Sci. 2017, 7(4), 389;

Study of the Preparation and Dielectric Property of PP/SMA/PVDF Blend Material

School of Highway, Chang’an University, Xi’an 710064, China
Author to whom correspondence should be addressed.
Academic Editor: Andy Alderson
Received: 21 February 2017 / Revised: 29 March 2017 / Accepted: 10 April 2017 / Published: 13 April 2017
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Polypropylene (PP) and polyvinylidene fluoride (PVDF) polymer materials have been widely used because PP has excellent piezoelectricity and PVDF has a robust tensile strength. However, few studies have been reported about PP/PVDF blends, and the main issue has proven to be the interfacial compatibility of blends. This research investigated the microstructure of blends to characterize their compatibility. X-ray diffraction (XRD) and scanning electron microscope (SEM) analysis showed the poor interactions between PP and PVDF interface, and thus this study adopted styrene maleic anhydride (SMA) copolymer as compatibilizer to modify the properties of blends. The XRD and SEM investigations showed an enhancement in the interactions between PP and PVDF after the addition of SMA. The dielectric properties of PP/SMA/PVDF blends showed a significant increase when PP content was 40%–60% and the dielectric constant (ε) was up to 13; meanwhile, the dielectric loss (tanδ) of PP/SMA/PVDF was lower than PP/PVDF blends. View Full-Text
Keywords: polymer blends; PP/PVDF; compatibilizer; dielectric property; microstructure polymer blends; PP/PVDF; compatibilizer; dielectric property; microstructure

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Chen, Z.; Pei, J.; Li, R. Study of the Preparation and Dielectric Property of PP/SMA/PVDF Blend Material. Appl. Sci. 2017, 7, 389.

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