Abstract
The copolymer VAMA was synthesized from vinyl acetic and maleic anhydride. A new all-polymeric blend with a high dielectric constant (ε) has been developed by blending polyvinylidene fluoride (PVDF) with vinyl acetic-maleic anhydride modified polyamide (PA66-g-VM). The blend shows high dielectric constants (εblend = 20) and excellent mechanical properties. The SEM investigations suggest that the enhanced dielectric behavior originates from significant interfacial interactions between polymers. The XRD demonstrates that the compatibilizer affects the crystalline behavior of each component. Furthermore, the stable dielectric constants of the all-polymeric blends can be tuned by adjusting the content of the compatibilizer. The created high-ε all-polymeric blends represent a novel type of material that is technologically simple, easy to process, and of a relatively high dielectric constant, with application for flexible electronics.
Highlights
With the continuous development of science and technology, requirements become higher to the energy efficiency of materials, and it is hard for single polymer to meet requirements [1,2]
Grafting reaction can lower the melting point of PA66, and the blends of both can obtained from VM-g-PA66 and polyvinylidene fluoride (PVDF) by melt blending through torque rheometer, studying the be obtained from VM-g-PA66 and PVDF by melt blending through torque rheometer, studying the mechanical properties and morphology of blends
This paper demonstrated a simple, efficient, and repeatable route to produce discontinuous allThis paper demonstrated a simple, efficient, and repeatable route to produce discontinuous polymer blends composed of VM-g-PA66 and PVDF
Summary
With the continuous development of science and technology, requirements become higher to the energy efficiency of materials, and it is hard for single polymer to meet requirements [1,2]. According to the property index requirements of capacitor material, the paper selected two typical polar polymers which are polyvinylidene fluoride (PVDF) and polyamide (PA) to blend. The mechanical-electrical properties and improvement method were reported about PA11/PVDF blend system [8,9,10]. The melting point of PA66 was lowered by grafting process, the mechanical melt blending problem of PVDF and PA66 can be solved. Grafting reaction can lower the melting point of PA66, and the blends of both can obtained from VM-g-PA66 and PVDF by melt blending through torque rheometer, studying the be obtained from VM-g-PA66 and PVDF by melt blending through torque rheometer, studying the mechanical properties and morphology of blends. This paper is going to test microstructure mechanical properties and morphology of blends.
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