Dielectric properties of the polymer–matrix composites based on the system of Co-modified potassium titanate

Abstract

Powdered ceramic composites based on the amorphous potassium polytitanate modified in aqueous solutions of cobalt sulfate and calcined at 700℃ (PPT-Co) were used as the ceramic filler of the polytetrafluorethylene–matrix composite dielectrics characterized with high permittivity and low dielectric losses. The influence of the ceramic filler content on the electrical properties of the produced composites was investigated in the range of 1–50 wt%. The obtained results were compared with the data reported in literature for other ferroelectric composites based on polytetrafluorethylene and were analyzed taking into account some theoretical models earlier proposed for the two-component systems. An influence of the temperature on the frequency dependence of permittivity at 30–150℃ for the composites with different filler contents was investigated.

Keywords

Composite ceramics potassium polytitanate polytetrafluorethylene electrical properties

Get full access to this article

View all access options for this article.

References

Rajesh

Nisa

Murali

et al.

Microwave dielectric properties of PTFE/rutile nanocomposites. J Alloys Compd 2009; 477: 677–682.

Rajesh

Murali

Priyadarsini

et al.

Rutile filled PTFE composites for flexible microwave substrate applications. Mater Sci Eng B 2009; 163: 1–7.

Wall

. Fluoropolymers 1971; Vol 25, New York: Wiley Publisher.

Hussain

Hojjati

Okamoto

et al.

Polymer-matrix nanocomposites, processing, manufacturing, and application: An overview. J Compos Mater 2006; 40: 1511–1575.

James

Jacob

Murali

et al.

Ba(Mg_1/3Ta_2/3)O₃ filled PTFE composites for microwave substrate applications. Mater Chem Phys 2010; 122: 507–511.

Yuan

Zhang

Zhou

et al.

MgTiO₃ filled PTFE composites for microwave substrate applications. Mater Chem Phys 2013; 141: 175–179.

Murali

Rajesh

Prakash

et al.

Preparation and properties of silica filled PTFE flexible laminates for microwave circuit applications. Compos Part A: Appl Sci Manuf 2009; 40: 1179–1185.

Rahachou

Rogachev

Yarmolenko

et al.

Molecular structure and optical properties of PTFE-based nanocomposite polymer–metal coatings. Appl Surf Sci 2012; 258: 1976–1980.

Kim

Koh

et al.

Fabrication of BaTiO₃-PTFE composite film for embedded capacitor employing aerosol deposition. Ceram Int 2011; 37: 1859–1864.

10.

Subodh

Pavithran

Mohanan

et al.

PTFE/Sr₂Ce₂Ti₅O₁₆ polymer ceramic composites for electronic packaging applications. J Eur Ceram Soc 2007; 27: 3039–3044.

11.

Burmistrov

Gorshkov

Ilinykh

et al.

Improvement of carbon black based polymer composite electrical conductivity with additions of MWCNT. Compos Sci Technol 2016; 129: 79–85.

12.

Thomas

Raman

Mohanan

et al.

Effect of coupling agent on the thermal and dielectric properties of PTFE/Sm₂Si₂O₇ composites. Compos Part A: Appl Sci Manuf 2010; 41: 1148–1155.

13.

Goffman

Gorokhovsky

Kompan

et al.

Electrical properties of the potassium polytitanate compacts. J Alloys Compd 2014; 615: 526–529.

14.

Gorokhovskii

Goffman

Gorshkov

et al.

Electrophysical properties of ceramic articles based on potassium polytitanate nanopowder modified by iron compounds. Glass Ceram 2015; 72: 54–56.

15.

Gorokhovsky

Tretyachenko

Goffman

et al.

Preparation and dielectric properties of ceramics based on mixed potassium titanates with the hollandite structure. Inorg Mater 2016; 52: 587–592.

16.

Goffman

Gorokhovsky

Gorshkov

et al.

Data on electrical properties of nickel modified potassium polytitanates compacted powders. Data Brief 2015; 4: 193–198.

17.

Sanchez-Monjaras

Gorokhovsky

Escalante-Garcia

. Molten salt synthesis and characterization of polytitanate ceramic precursors with varied TiO₂/K₂O molar ratio. J Am Ceram Soc 2008; 91: 3058–3065.

18.

Tretyachenko

Gorokhovsky

Yurkov

GYu

et al.

Adsorption and photo-catalytic properties of layered lepidocrocite-like quasi-amorphous compounds based on modified potassium polytitanates. Particuology 2014; 17: 22–28.

19.

Macdonald

Barsoukov

. Impedance spectroscopy: Theory, experiment, and applications, Hoboken, NJ: John Wiley & Sons, 2005.

20.

Sandler

Shaffer

MSP

Prasse

et al.

Development of a dispersion process for carbon nanotubes in an epoxy matrix and the resulting electrical properties. Polymer 1999; 40: 5967–5971.

21.

Rao

Marinis

et al.

A precise numerical prediction of effective dielectric constant for polymer-ceramic composite based on effective-medium theory. IEEE Trans Comp Packag Technol 2000; 23: 680–683.

22.

Lichtenecker

. Der elektrische Leitungswiderstand künstlicher und natürlicher aggregate. Phys Z 1924; 25: 225–233.

23.

Nalwa

. Chemist, physics, and application, Beijing: M. Dedder Corp., 1989.

24.

Sihvola

Kong

. Effective permittivity of dielectric mixtures. IEEE Trans Geosci Remote Sens 1988; 26: 420–429.

25.

Aden

Kerker

. Colours in metal glasses and in metallic films. J Appl Phys 1951; 22: 1242–1246.

26.

Norris

Sheng

Callegari

. Effective-medium theories for two-phase dielectric media. J Appl Phys 1985; 57: 1990–1996.

27.

Zhen

Zhang

et al.

Microstructural characterization of single-crystalline potassium hollandite nanowires. Mater Charact 2008; 59: 1805–1808.

28.

Zhang

et al.

Synthesis and characterization of single-crystalline alkali titanate nanowires. J Am Chem Soc 2005; 127: 11584–11585.

29.

Gabal

Hameed

Obaid

. CoTiO₃ via cobalt oxalate-TiO₂ precursor. Synthesis and characterization. Mater Charact 2012; 71: 87–94.

30.

Thakur

Tan

Lee

. Surface functionalization of BaTiO₃ nanoparticles and improved electrical properties of BaTiO₃/polyvinylidene fluoride composite. RSC Adv 2011; 1: 576–578.

31.

Lin

Thakur

Tan

et al.

Dopant induced hollow BaTiO₃ nanostructures for application in high performance capacitors. J Mater Chem 2011; 21: 16500–16504.

32.

Thakur

Tan

Lin

et al.

Poly(vinylidene fluoride)-graft-poly (2-hydroxyethyl methacrylate): A novel material for high energy density capacitors. J Mater Chem 2011; 21: 3751–3759.

33.

Thakur

Tan

Lin

et al.

Polystyrene grafted polyvinylidenefluoride copolymers with high capacitive performance. Polym Chem 2011; 2: 2000–2009.

34.

Thakur

Gupta

. Recent progress on ferroelectric polymer-based nanocomposites for high energy density capacitors: Synthesis, dielectric properties, and future aspects. Chem Rev 2016; 116: 4260–4317.

35.

Gorokhovsky

Tretyachenko

Goffman

et al.

Preparation and dielectric properties of ceramics based on mixed potassium titanates with the hollandite structure. Inorg Mater 2016; 52: 587–592.

36.

Gorshkov

Goffman

Khoryukov

et al.

High-temperature engineering ceramic based on complex titanates having a hollandite structure. Refract Ind Ceram 2016; 57: 413–416.

37.

Mott

Davis

. Electronic processes in non-crystalline materials, Oxford: Clarendon Press, 1971.

38.

Hench

West

. Principles of electronic ceramics, New York: Marcel Dekker, 1989.

39.

Sasikala

Sebastian

. Mechanical, thermal and microwave dielectric properties of Mg₂SiO₄ filled polytetrafluoroethylene composites. Ceram Int 2016; 42: 7551–7563.

40.

Subodh

Joseph

Mohanan

et al.

Low dielectric loss polytetrafluoroethylene/TeO₂ polymer ceramic composites. J Am Ceram Soc 2007; 90: 3507–3511.

41.

Anjana

Sebastian

Suma

et al.

Low dielectric loss PTFE/CeO₂ ceramic composites for microwave substrate applications. Int J Appl Ceram Technol 2008; 5: 325–333.

Dielectric properties of the polymer–matrix composites based on the system of Co-modified potassium titanate–polytetrafluorethylene

Abstract

Keywords

Get full access to this article

References