Silanization of boron nitride nanosheets (BNNSs) through microfluidization and their use for producing thermally conductive and electrically insulating polymer nanocomposites

Seyhan, Abdullah Tuğrul; Göncü, Yapıncak; Durukan, Oya; Akay, Atakan; Ay, Nuran

doi:10.1016/j.jssc.2017.02.020

Cited by 59 publications

(44 citation statements)

References 40 publications

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Section: Methodsmentioning

confidence: 99%

“…The intercalation of polar solvent could significantly decrease interaction forces (electrostatic and van der Waals forces) among BN interlayers, and further increase interlayer distances of BN plates. [19,22] Consequently, BNNSs powders were manufactured by adopting ultrasonic-assistant solvent method. In a typical experiment, BN powders (2 g) were dispersed in DMAc (200 mL) and chemically exfoliated via ultrasonication for 12 h. After this step, the obtained BNNSs suspension was first centrifuged at 3000 rpm for 30 min to remove BN aggregations and residual large-size BN particles.…”

Section: Preparation Of Boron Nitride Nanosheetsmentioning

confidence: 99%

“…Modification of BNNSs is an effective method to ameliorate the interfacial interaction with polymer matrix. Jiang Y et al functionalized the surface of BNNSs with a silane coupling agent. The thermal conductivity of prepared composite reached 0.41 W m −1 K, compared with pure polymer of 0.22 W m −1 K. Wu X et al fabricated elastomer composite containing polyrhodanine@BNNSs fillers, the thermal conductivity of manufactured elastomer composites increases by 36% with 27.5 vol% polyrhodanine@BNNSs fillers.…”

Section: Introductionmentioning

confidence: 99%

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Novel Poly(m‐phenyleneisophthalamide) Dielectric Composites with Enhanced Thermal Conductivity and Breakdown Strength Utilizing Functionalized Boron Nitride Nanosheets

Duan

Wang

et al. 2019

Macro Materials & Eng

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Dielectric polymer‐based composites with high breakdown strengths and thermal conductivities have attracted considerable attention when applied in electronic devices. In this study, a novel poly(m‐phenyleneisophthalamide) (PMIA) dielectric nanocomposite is successfully fabricated by introducing functionalized hexagonal boron nitride nanosheet (fBNNS) fillers. Due to effective functionalization of hexagonal boron nitride nanosheets (BNNSs), fBNNSs fillers are homogeneously dispersed in the PMIA matrix. The breakdown strength and thermal conductivity of PMIA/fBNNSs dielectric nanocomposite are investigated. Research results indicate that the breakdown strength of fBNNSs‐12 reaches 105.6 MV m−1, which is 1.34 times that of pure PMIA. Moreover, owing to high thermal conductivity of fBNNSs, the thermal conductivities of fBNNSs‐12 are observably increased to 8.06 W m−1 K of in‐plane direction and 0.84 W m−1 K of through‐plane direction, respectively. Considering these properties, the manufactured PMIA/fBNNSs dielectric nanocomposites show potential applications in field of electronics.

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Section: Methodsmentioning

confidence: 99%

Section: Preparation Of Boron Nitride Nanosheetsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel Poly(m‐phenyleneisophthalamide) Dielectric Composites with Enhanced Thermal Conductivity and Breakdown Strength Utilizing Functionalized Boron Nitride Nanosheets

Duan

Wang

et al. 2019

Macro Materials & Eng

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“…However, while this approach allows the production of low‐defect flakes (i.e., no significant additional defects are introduced during the exfoliation) with concentrations of only several g L −1 , it is not easily scalable to large volumes . To overcome this issue, other approaches have been proposed such as ball milling, shear exfoliation, and micro‐fluidization, each having its own advantages and disadvantages, especially in terms of quality, yield of exfoliation, cost, scalability, and defect density . Feng, Müllen, and co‐workers have demonstrated that electrochemical exfoliation of graphite (see Figure e) provides graphene flake from one‐ to three‐layers with a high yield of greater than 80% and a high C/O ratio of (≈12), a sheet resistance value of 4.8 kΩ □ −1 and hole mobility of 233 cm 2 V −1 s −1 for a single sheet .…”

Section: D Materials: Production and Processingmentioning

confidence: 99%

Nonvolatile Memories Based on Graphene and Related 2D Materials

et al. 2019

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The pervasiveness of information technologies is generating an impressive amount of data, which need to be accessed very quickly. Nonvolatile memories (NVMs) are making inroads into high‐capacity storage to replace hard disk drives, fuelling the expansion of the global storage memory market. As silicon‐based flash memories are approaching their fundamental limit, vertical stacking of multiple memory cell layers, innovative device concepts, and novel materials are being investigated. In this context, emerging 2D materials, such as graphene, transition metal dichalcogenides, and black phosphorous, offer a host of physical and chemical properties, which could both improve existing memory technologies and enable the next generation of low‐cost, flexible, and wearable storage devices. Herein, an overview of graphene and related 2D materials (GRMs) in different types of NVM cells is provided, including resistive random‐access, flash, magnetic and phase‐change memories. The physical and chemical mechanisms underlying the switching of GRM‐based memory devices studied in the last decade are discussed. Although at this stage most of the proof‐of‐concept devices investigated do not compete with state‐of‐the‐art devices, a number of promising technological advancements have emerged. Here, the most relevant material properties and device structures are analyzed, emphasizing opportunities and challenges toward the realization of practical NVM devices.

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“…Conjugated polymers materials are pervasive in modern electronics and electrical systems. Conducting polymers made of conjugated polymers have found applications in the areas of capacitive energy storage 1,2 , transistors 3,4 , photovoltaic devices 5,6 and electrical insuation 7 . They gained scholars attention due to their optical and electrical properties such as dielectric constant, refractive index, impedance, etc 8 .…”

Section: Introductionmentioning

confidence: 99%

The dielectric and electrical proprieties of Ethylcarbazole family based copolymer

Bouaamlat¹,

Hadi²,

Sadki³

et al. 2019

Mediterr.J.Chem.,

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The dielectric and electrical proprieties of Ethylcarbazole family based copolymer such as Poly(Ethylcarbazole-Terphenyl) (PEcbz-Ter), Poly(Ethylcarbazole-Anthracene) (PEcbz-Ant) and Poly(Ethylcarbazole-Furan) (PEcbz-Fur) were investigated over the frequency range from 1 kHz to 2 MHz. The dielectric constant ε' r for (PEcbz-Ter), (PEcbz-Ant) and (PEcbz-Fur) pellets was found to decrease as the frequency increases and it was recorded a value of 11 7 , 11 6 and 7 6 respectively at 1 kHz. The dielectric loss was investigated and have a value below 1% at 11 kHz, which is suitable for several energy storage applications.

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Silanization of boron nitride nanosheets (BNNSs) through microfluidization and their use for producing thermally conductive and electrically insulating polymer nanocomposites

Cited by 59 publications

References 40 publications

Novel Poly(m‐phenyleneisophthalamide) Dielectric Composites with Enhanced Thermal Conductivity and Breakdown Strength Utilizing Functionalized Boron Nitride Nanosheets

Novel Poly(m‐phenyleneisophthalamide) Dielectric Composites with Enhanced Thermal Conductivity and Breakdown Strength Utilizing Functionalized Boron Nitride Nanosheets

Nonvolatile Memories Based on Graphene and Related 2D Materials

The dielectric and electrical proprieties of Ethylcarbazole family based copolymer

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