Polymers 2014, 6(8), 2146-2156; doi:10.3390/polym6082146
Polyamide 11/Poly(vinylidene fluoride)/Vinyl Acetate-Maleic Anhydride Copolymer as Novel Blends Flexible Materials for Capacitors
1
School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China
2
Highway School, Chang'an University, Xi'an 710064, China
*
Author to whom correspondence should be addressed.
Received: 2 January 2014 / Revised: 28 March 2014 / Accepted: 2 April 2014 / Published: 11 August 2014
(This article belongs to the Special Issue Polymer Blends)
Abstract
A novel all-polymeric blend with high dielectric constant (K) has been developed by blending polyvinylidene fluoride (PVDF) and polyamide (PA11) via co-melt-pressing technology with a compatilizer vinyl acetate-maleic anhydride (VA-MA) copolymer. Adding a copolymer of vinyl acetate and maleic anhydride decreased the dielectric loss (tan δ ≈ 0.057) and increased the dielectric constant (Kblend = 15). The blends show high dielectric constants, which give better frequency stability, and excellent mechanical properties. SEM investigations suggest that the enhanced dielectric behavior originates from significant interfacial polymer-polymer interactions. FT-IR, DSC and XRD demonstrate that blending PA11 with PVDF affects the crystalline behavior of each component. The high-K polymeric blends created represent a novel type of material that is flexible and easy to process, moreover, is appropriate for flexible micro-electronics. View Full-Text
Figure 1
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Kuang, D.; Li, R.; Pei, J. Polyamide 11/Poly(vinylidene fluoride)/Vinyl Acetate-Maleic Anhydride Copolymer as Novel Blends Flexible Materials for Capacitors. Polymers 2014, 6, 2146-2156.
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