Wet vs. Dry Dispersion Methods for Multiwall Carbon Nanotubes in the High Graphite Content Phenolic Resin Composites for Use as Bipolar Plate Application

Chaiwan, Pattarakamon; Pumchusak, Jantrawan

doi:10.1016/j.electacta.2015.01.101

Cited by 45 publications

(41 citation statements)

References 27 publications

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“…A further increase was observed by the addition of CFC or CFC and CNTs. These results can be attributed to the high electrical conductivities of CFC (10 3 S cm −1 ) and CNTs (10 4 S cm −1 ) [30][31][32][33].…”

Section: Resultsmentioning

confidence: 93%

Preparation and characterization of graphite/thermosetting composites

et al. 2019

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Graphite/thermosetting composites were prepared via a melt blending and compression-curing process using epoxy and phenolic resins as polymer matrices. The flexural strength, flexural modulus and electrical conductivity of the composites were investigated. The composites containing 55 wt% graphite showed the maximum flexural strength and modulus. Scanning electron microscopy results showed that the thermosetting resins and graphite were uniformly dispersed on the fractured surface of the composites. The electrical conductivity of the composites increased with an increase in the graphite content. The flexural and electrical properties of the composites improved significantly by the addition of a carbon fibre cloth (CFC) or a CFC and carbon nanotubes.

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Section: Resultsmentioning

confidence: 93%

Preparation and characterization of graphite/thermosetting composites

et al. 2019

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“…Oleh karena itu pada penelitian ini digunakan metode dry dispersi untuk mengurangi porositas dan kefisiensian [5]. Sehingga diharapkan dapat meningkatkan nilai konduktivitas dalam proses pembuatan material komposit bipolar plate pada komponen elektroda PEMFC.…”

Section: Pendahuluanunclassified

Dispersi Dengan Metode Kering Untuk Peningkatan Konduktivitas Komposit Limbah Grafit/Karbon Serat Alam Pada Aplikasi Pelat Bipolar Fuel Cell

Insiyanda

Chaer

2017

Prosiding Seminar Nasional Fisika (E-Journal) Snf2017 Unj

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AbstrakProton Exchange Membran fuel cell (PEMFC) merupakan jenis sel bahan bakar yang paling sederhana serta merupakan alternatif yang menjanjikan untuk sumber listrik. Komponen yang terpenting dari PEMFC adalah pelat bipolar karena 80% dari total volume, 70% dari total berat, dan 60% dari total biaya produksi. Untuk itu diperlukan pelat bipolar yang mudah diproduksi secara massal sehingga dapat tercapai pemenuhan keefektifan dan keefisiensian dalam produksi pelat bipolar PEMFC. Pada penelitian ini digunakan dispersi metode kering atau dry, Komposit yang digunakan berupa polimer sebagai matriks serta grafit dari limbah pabrik dan Carbon black (CB) dari bahan alam serabut kelapa sebagai penguat yang dibuat dari pembakaran pada suhu 1300 o C dalam kondisi inert. Kemudian pembentukkan menggunakan hotpress dengan tekanan 55 tonf/s, 150 o C selama 60 menit dengan dimensi 5x5x(0,2-0,4) cm 3 . Hasil tertinggi dari penelitian ini adalah nilai konduktivitas sebesar 20 S/cm. Sehingga dispersi dengan metode kering ini dapat dijadikan alternatif peningkatan konduktivitas pada pembuatan bahan material untuk aplikasi bipolar plate PEMFC. AbstractProton Exchange Fuel Cell Membrane (PEMFC) is the simplest type of fuel cell and is a promising alternative to power sources. The most important component of PEMFC is bipolar plate because 80% of total volume, 70% of total weight, and 60% of total production cost. Therefore, it is necessary for bipolar plates to be mass-produced to achieve the fulfillment of effectiveness and efficiency in the production of bipolar plates PEMFC. In this research, dry or dry method dispersion is used. The composites used are the polymer as matrix and graphite from factory waste and Carbon black (CB) from natural material of coconut fiber as an amplifier made from burning at 1300 o C in inert condition. Then, the formation using hot press with pressure 55 tonf/s, 150 o C for 60 minutes with dimension 5x5x (0,2-0,4) cm 3 . The highest result of this research is conductivity value of 20 S/cm. Thus, the dispersion by this dry method can be used as an alternative to increasing the conductivity in the manufacture of materials for PEMFC bipolar plate applications. SIMPULANMetode dry dispersi tanpa solvent dapat meningkatkan nilai konduktivitas dalam proses pembuatan material komposit limbah grafit/Carbon black/polimer bipolar plate pada komponen elektroda PEMFC. UCAPAN TERIMAKASIHPara peneliti mengucapkan banyak terimakasih kepada semua pihak yang telah membantu kami dalam penelitian ini, dan kepada Pusat Penelitian Fisika LIPI

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“…The result exhibited that the conductivity of bipolar plate was greatly improved by the multilayer coating. Chaiwan et al [13] made multiwall carbon nanotubes to strengthen graphite/phenolic resin composite. A dry dispersion method was studied to disperse the multi-walled carbon nanotubes in composite.…”

Section: Introductionmentioning

confidence: 99%

ZrC Coating Modified Ti Bipolar Plate for Proton Exchange Membrane Fuel Cell

et al. 2020

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The electrical conductivity, corrosion resistance and hydrophobic property of bipolar plate are important factors to affect the overall performance of proton exchange membrane fuel cell (PEMFC). In order to improve the performance of bipolar plate, ZrC coating has been prepared on bare Ti plate by plasma surface modification technology. From the microscopic morphology characterization, it can be found that the surface of ZrC modified plate is smooth without obvious defect. The potentiodynamic polarization and potentiostatic polarization tests are measured in cathodic and anodic environment of PEMFC. The result shows that the corrosion current density of ZrC coated Ti plate decreases by 1-2 orders of magnitude compared with bare Ti plate. Moreover, the interfacial contact resistance (ICR) decreases from 110 mΩ cm 2 to 7.70 mΩ cm 2 under the compaction force of 140 N cm-2. In addition, the ICR of ZrC coated Ti plate slightly increases after potentiostatic polarization, indicating that a good electrical conductivity and durability is obtained by ZrC coated Ti plate. Furthermore, the ZrC coated Ti plate has a lower water contact angle (105°) than bare Ti plate (76°), indicating a better hydrophobic performance for water management.

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Wet vs. Dry Dispersion Methods for Multiwall Carbon Nanotubes in the High Graphite Content Phenolic Resin Composites for Use as Bipolar Plate Application

Cited by 45 publications

References 27 publications

Preparation and characterization of graphite/thermosetting composites

Preparation and characterization of graphite/thermosetting composites

Dispersi Dengan Metode Kering Untuk Peningkatan Konduktivitas Komposit Limbah Grafit/Karbon Serat Alam Pada Aplikasi Pelat Bipolar Fuel Cell

ZrC Coating Modified Ti Bipolar Plate for Proton Exchange Membrane Fuel Cell

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