Significant enhancement of the electroactive β-phase of PVDF by incorporating hydrothermally synthesized copper oxide nanoparticles

Abstract

The influence of copper oxide nanoparticles on the polymorphism of PVDF is systematically investigated. Strong interfacial interactions between the negative nanoparticle surface and positive –CH2 dipoles of PVDF enhance the electroactive β-phase.

Hybrid lead-free polymer-based nanocomposites with improved piezoelectric response for biomedical energy-harvesting applications: A review

“…Numerous studies have shown that the crystallization behaviour of the 9 polymer depends on specific interfacial interactions between the nucleating agents and polymer chains [45,[47][48][49][50][51]. Therefore, the nucleation effect of the nanofillers depends on the particle surface charge and surface area, concentration, dispersion, lattice matching, and processing conditions [47,52,53]. The presence of nanofillers was shown to reduce the nucleation energy barrier, enhancing the crystallization rate and the degree of crystallinity of the polymer [47].…”

Fabrication of electroactive poly(vinylidene fluoride) through non-isothermal crystallization and supercritical CO2 processing

“…15(d) indicated that T H was too high, for all the samples processed using temperature prole 2 (Part VI in ESI †). 42,43…”

Improving the dielectric performance of poly(vinylidene fluoride)/polyaniline nanorod composites by stretch‐induced crystal transition

“…Since the current rapid development of portable electronic devices such as smart watches, smart phones and wireless body sensors to satisfy increased lifestyle mobility, there has been an urgent need for novel dielectric materials with properties of flexibility, light weight and cost‐effectiveness . In comparison to the brittleness, high density and poor machinability of traditional ceramic dielectric materials, polymers with natural advantages of mechanical flexibility, light weight, low cost and good processability can take this responsibility …”

“…[1][2][3][4][5] In comparison to the brittleness, high density and poor machinability of traditional ceramic dielectric materials, polymers with natural advantages of mechanical flexibility, light weight, low cost and good processability can take this responsibility. [6][7][8][9][10][11] However, the intrinsic low dielectric constant of polymers limits their practical application markedly but a requirement for compatible properties of flexibility and high dielectric constant still impels researchers to test all sorts of strategies to overcome this fatal drawback of polymers. [12][13][14][15][16] The common way is by blending high dielectric ceramic powder into polymer, [17][18][19][20][21] while high ceramic loadings and poor compatibility between rigid filler and soft matrix dramatically degrade the mechanical properties of the composites, thus negating the original flexibility of the polymers and restricting their applications.…”