Surface functionalization of BaTiO3 nanoparticles and improved electrical properties of BaTiO3/polyvinylidene fluoride composite

Lin, Meng‐Fang; Thakur, Vijay Kumar; Tan, Eu Jin; Lee, Pooi See

doi:10.1039/c1ra00210d

Cited by 178 publications

(113 citation statements)

References 25 publications

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“…Surface functionalization of CaCO 3 with a fluorinated alkoxysilane led to PVDF nanocomposites with enhanced filler dispersion, better thermal stability and improved gas barrier [30], while a commercial organo-silane coated ZnO only slightly increased the storage modulus of a P(VDFTrFE) based nanocomposite versus uncoated ZnO, with no influence on the dispersion state of the filler or on the crystallinity of the matrix [31]. High permittivity nanocomposite films were fabricated by embedding, into VDF-based polymer matrices, BaTiO 3 particles that were surface modified with fluorinated phosphonic acid [32], dopamine [27,33], organofunctional titanates with long alkyl chains [34,35], aminopropyl triethoxy silane [25], or surface hydroxylated by refluxing in aqueous H 2 O 2 [36,37]. Furthermore, in a different approach, BaTiO 3 nanoparticles were generated in situ in a PVDF-g-HEMA copolymer, in which the -OH group of the HEMA units acted as a bridge with the nanoparticles surface, obtaining high dielectric constant, although the dielectric losses also increased with BaTiO 3 concentration [38].…”

Section: Introductionmentioning

confidence: 99%

Effect of silane coupling agent on the morphology, structure, and properties of poly(vinylidene fluoride–trifluoroethylene)/BaTiO3 composites

et al. 2014

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and their thermal, viscoelastic and dielectric properties were investigated. When surface modified BaTiO 3 was used, it was possible to decrease both the viscoelastic and the dielectric losses of highly filled solvent cast films, while their storage modulus and relative permittivity either increased or remained equal, owing to reduced porosity and improved matrix-filler compatibility. The effect of BaTiO 3 surface modification on the morphology of compression molded films was less marked, leading to unchanged viscoelastic properties, and lower permittivity and dielectric losses. For all composites the frequency dependency of the dielectric properties at low frequencies was suppressed with modified BaTiO 3 .

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Section: Introductionmentioning

confidence: 99%

Effect of silane coupling agent on the morphology, structure, and properties of poly(vinylidene fluoride–trifluoroethylene)/BaTiO3 composites

et al. 2014

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“…In the recent years, nanotechnology has become recognized as one of the most appealing area for technology development [55,56]. Nanotechnology is a science of manipulating materials at nanoscale ranging from 1 to 100 nm.…”

Section: Chitosan-based Nanocompositesmentioning

confidence: 99%

A Review on Bionanocomposites Based on Chitosan and Its Derivatives for Biomedical Applications

El‐Sherbiny

Elbaz

2015

Advanced Structured Materials

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Bionanocomposites are emerging nanostructure hybrid materials composed of natural polymers and inorganic solids. Bionanocomposites became a subject of intensive research owing to their inherent properties such as nontoxicity, biocompatibility, biodegradability as well as their improved structural and functional properties. Among these bionanocomposites, chitosan-based nanocomposites have attracted a great deal of attention especially in biomedical field. Globally, chitosan is the second most bountiful natural polymer following cellulose. Chitosan is a biocompatible and biodegradable polymer possessing unique structural, chemical, and biological properties. The last decade has witnessed enormous multidisciplinary research focused on improving the properties of chitosan and its derivatives. As a result, several chitosan-based nanocomposites with enhanced physical and chemical properties have been developed in eco-friendly and cost-effective manner. This chapter provides an overview on different aspects of chitosan including its properties and modifications, and focuses on chitosan-based nanocomposites. Important biomedical applications of chitosan-based nanocomposites are also discussed in this chapter including tissue engineering, wound healing, tissue regeneration, drug delivery, and biosensors.

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“…However, using graphene as nanoscale filler in polymer matrix composites is one of the most promising applications [89,107]. Polymer nanocomposites not only demonstrate substantially improved chemical and mechanical properties at much lower loading of fillers, in contrast to the conventional micron-scale fillers of polymer composites, but also possess lower component weight and have simpler processing techniques [20,76,77,[138][139][140][141][142]. Different types of polymers, composites, and nanocomposites have been used in a number of applications [124][125][126][127][128][143][144][145].…”

Section: Introductionmentioning

confidence: 98%

Graphene-Based Polymer Nanocomposites: Chemistry and Applications

Mogharabi

Faramarzi

2015

Advanced Structured Materials

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Graphene, a monolayer sp 2 hybridized carbon atom, received worldwide attention due to its extraordinary physical, chemical, thermal, and electrical properties. In recent years, the development of nanoscale dispersion techniques using graphene particles in a polymer matrix has been crowned a new and interesting horizon in material science. Graphene-based polymer nanocomposites reveal superior mechanical and thermal properties compared with the conventional graphite-based composites or neat polymers which are obtained through very low filler loadings in the polymer matrix. Graphene derivatives as unique nanofillers are used in the production of lightweight, low cost, and high-performance polymer nanocomposites with a wide range of applications, such as fuel cells, supercapacitors, solar cells, sensors, and lightweight gasoline tanks. This chapter reviews the preparation methods of graphene-based polymer nanocomposites, their characteristics, and their wide range of potential applications in technological fields.

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Surface functionalization of BaTiO3 nanoparticles and improved electrical properties of BaTiO3/polyvinylidene fluoride composite

Cited by 178 publications

References 25 publications

Effect of silane coupling agent on the morphology, structure, and properties of poly(vinylidene fluoride–trifluoroethylene)/BaTiO3 composites

Effect of silane coupling agent on the morphology, structure, and properties of poly(vinylidene fluoride–trifluoroethylene)/BaTiO3 composites

A Review on Bionanocomposites Based on Chitosan and Its Derivatives for Biomedical Applications

Graphene-Based Polymer Nanocomposites: Chemistry and Applications

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