2010, Vol.11, No.4

Influence of Processing on Morphology, Electrical Conductivity and Flexural Properties of Exfoliated Graphite Nanoplatelets–Polyamide Nanocomposites

Wanjun Liu , Inhwan Do , Hiroyuki Fukushima and 1 other persons | 2010, 11(4) | pp.279~284 | number of Cited : 4

Graphene is one of the most promising materials for many applications. It can be used in a variety of applications not only as a reinforcement material for polymer to obtain a combination of desirable mechanical, electrical, thermal, and barrier properties in the resulting nanocomposite but also as a component in energy storage, fuel cells, solar cells, sensors, and batteries. Recent research at Michigan State University has shown that it is possible to exfoliate natural graphite into graphite nanoplatelets composed entirely of stacks of graphene. The size of the platelets can be controlled from less than 10 nm in thickness and diameters of any size from sub-micron to 15 microns or greater. In this study we have investigated the influence of melt compounding processing on the physical properties of a polyamide 6 (PA6) nanocomposite reinforced with exfoliated graphite nanoplatelets (xGnP). The morphology, electrical conductivity, and mechanical properties of xGnP-PA6nanocomposite were characterized with electrical microscopy, X-ray diffraction, AC impedance, and mechanical properties. It was found that counter rotation (CNR) twins crew processed xGnP/PA6 nanocomposite had similar mechanical properties with co-rotation (CoR) twin screw processed or with CoR conducted with a screw design modified for nanoparticles (MCoR). Microscopy showed that the CNR processed nanocomposite had better xGnP dispersion than the (CoR) twin screw processed and modified screw (MCoR) processed ones. It was also found that the CNR processed nanocomposite at a given xGnP content showed the lowest graphite X-ray diffraction peak at 26.5o indicating better xGnP dispersion in the nanocomposite. In addition, it was also found that the electrical conductivity of the CNR processed 12 wt.% xGnP-PA6 nanocomposite is more than ten times higher than the CoR and MCoR processed ones. These results indicate that better dispersion of an xGnP-PA6 nanocomposite is attainable in CNR twins crew processing than conventional CoR processing.

Fabrication and Electrical, Thermal and Morphological Properties of Novel Carbon Nanofiber Web/Unsaturated Polyester Composites

김성환 , Oh Hyeong Kwon , Donghwan Cho | 2010, 11(4) | pp.285~292 | number of Cited : 0

New Application of Clay Filler for Carbon/Carbon Composites and Improvement of Filler Effect by Clay Size Reduction

정의경 , 김진호 , Lee, Young-Seak | 2010, 11(4) | pp.293~297 | number of Cited : 3

Functionalization of Multi-walled Carbon Nanotube by Treatment with Dry Ozone Gas for the Enhanced Dispersion and Adhesion in Polymeric Composites

Jung-Hwan Kim , Min, Byung-Ghyl | 2010, 11(4) | pp.298~303 | number of Cited : 1

Formation of Isotropic Carbon Matrix in Carbon/Carbon Composites Derived from Pitch

Chong-Jin Ahn , In-Seo Park , Joo Hyuk-Jong | 2010, 11(4) | pp.304~310 | number of Cited : 1

Influence of Glycidyl Methacrylate Grafted Multi-walled Carbon Nanotubes on Viscoelastic Behaviors of Polypropylene Nanocomposites

Young-Sun Shim , PARK SOOJIN | 2010, 11(4) | pp.311~315 | number of Cited : 3

Molecular Dynamics Simulations of Graphite-Vinylester Nanocomposites and Their Constituents

H. Alkhateb , A. Al-Ostaz , A. H.-D. Cheng | 2010, 11(4) | pp.316~324 | number of Cited : 0

Effect of Interphase Modulus and Nanofiller Agglomeration on the Tensile Modulus of Graphite Nanoplatelets and Carbon Nanotube Reinforced Polypropylene Nanocomposites

Mehdi Karevan , Raghuram V. Pucha , Md A. Bhuiyan and 1 other persons | 2010, 11(4) | pp.325~331 | number of Cited : 4

Photocatalytic Degradation of Quinol and Blue FFS Acid Using TiO2 and Doped TiO2

Padmini. E. , Prakash Singh K. , Lima Rose Miranda | 2010, 11(4) | pp.332~335 | number of Cited : 1

Acid Treatments of Carbon Nanotubes and Their Application as Pt-Ru/ CNT Anode Catalysts for Proton Exchange Membrane Fuel Cell

김민식 , Sinmuk Lim , Min Young Song and 3 other persons | 2010, 11(4) | pp.336~342 | number of Cited : 5

Performance of Expanded Graphite as Anode Materials for High Power Li-ion Secondary Batteries

박도연 , Yun-Soo Lim , Myung-Soo Kim | 2010, 11(4) | pp.343~346 | number of Cited : 5

A Review on Thermal Conductivity of Polymer Composites Using Carbon-Based Fillers : Carbon Nanotubes and Carbon Fibers

홍진호 , Park Dong-Wha , SHIM SANG EUN | 2010, 11(4) | pp.347~356 | number of Cited : 8

Necessity of Development on New Types of Activated Carbons for Advanced Drinking Water Purification Technology

김지일 , 김영하 , 장동일 and 2 other persons | 2010, 11(4) | pp.357~365 | number of Cited : 2

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Carbon Letters 2023 KCI Impact Factor : 1.35 KCI-WoS Impact Factor : 4.82

2010, Vol.11, No.4