Preparation and Characterization of GNP/Nylon Composites

Bao Feng Xu; Zhi Dan Lin; Jiang Ming Chen; Jun Lin

doi:10.4028/www.scientific.net/AMM.556-562.339

Paper Titles

Study on Thermogravimetric and Differential Thermal Characteristics of Aluminum Salt Flame Retardants
p.322

Thermal Properties Study of Magnesium Salt Flame Retardants Prepared by Different Alkali Sources
p.326

Structural, Optical and Magnetic Properties of W-Doped TiO₂
p.330

Expanded Vermiculite Applied in the Catalytic Process as a Catalyst Support
p.335

Preparation and Characterization of GNP/Nylon Composites
p.339

Preparation and Characterization of Wear-Resistant Polyurethane-Based Materials
p.343

Variable Selection in Proteomic Profile Classification by Interval Support Vector Machines (iSVM)
p.347

Consensus Maximum Margin Criterion for Classification of Proteomic Profile
p.351

On the Microstructure of a Biocomposite Fabricated from Bioceramics and 3D Ti-Mesh by Dip Coating Method
p.355

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 556-562Preparation and Characterization of GNP/Nylon...

Preparation and Characterization of GNP/Nylon Composites

Abstract:

Graphene nanoplatelets (GNP) and nylon (PA) have been often used as thermal filler and matrix and respectively to produce composites. In this work, PA6/PA66/GNP thermal composites were prepared via a melt blending method. Mechanical properties, morphology, and thermal properties of PA6/PA66/GNP composites were investigated. Because the GNP is very expensive, we investigated to use Al₂O₃and graphite and examined the characteristics of the prepared composites. Thermal conductivity values of PA6/PA66/GNP composites remarkably increased with increase of GNP contents mainly via layered dispersion in nylon matrix. The thermal conductivity of composite containing 50 wt % of GNP was measured as 5.03 W·m^–1·K^–1 at 30 °C, indicating an increase of more than 15 times compared with that of the neat PA6. When the Al₂O₃was replaced for GNP, the thermal conductivity of composites decreased, but the mechanical properties improved. When graphite was used to replace for GNP, thermal conductivity basically remained unchanged but mechanical properties decreased.