Preparation and Properties of Polyamide 6-Functionalized Nanometer-Sized Graphene Composite Fiber

Hai Hui Liu; Wei Wei Peng; Yong Tan; Li Chen Hou; Xing Xiang Zhang

doi:10.4028/www.scientific.net/KEM.519.20

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Synthesis and Properties of Microencapsulated Solid Paraffin Phase Change Materials
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Ferroelectric-to-Ferroelectric Phase Transition Induced Electro-Caloric Energy Conversion in Barium Titanate at Room Temperature
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Preparation and Characterization of Polymer Electrolyte Based on Comb-Shaped Poly(oxyethylene) with Ether Side Chains
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Preparation and Properties of Polyamide 6-Functionalized Nanometer-Sized Graphene Composite Fiber
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Study on Multi-Doped Ceria-Based Solid Electrolytes
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Investigation of Cobalt-Free Cathode Material Ba_0.5Sr_0.5Fe_0.8Cu_0.2O_3−δ for Micro-Tubular SOFC with Asymmetric Structure Anode
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 519Preparation and Properties of Polyamide...

Preparation and Properties of Polyamide 6-Functionalized Nanometer-Sized Graphene Composite Fiber

Abstract:

A novel approach to the functionalization of nanometer-sized graphene was presented in this work. Covalent bonding between the filler and matrix was formed, with minimal disruption to the sp² hybridization of the pristine graphene sheet. Functionalization proceeded by covalently bonding a 4-substituted benzoic acid monomer to the surface of expanded graphene, via ‘‘direct Friedel-Crafts” acylation in mild reaction medium of polyphosphoric acid (PPA)/phosphorous pentoxide. Polyamide 6 (PA6)-functionalized graphene (FG) composites were prepared by in situ polymerization of ε-caprolactam in the presence of nanometer-sized FG. Nanocomposite fiber with 0.1 wt.% content of nanometer-sized FG was prepared with a piston spinning machine and hot-roller drawing machine. The nanometer-sized FG performed homogeneous dispersion in the polymer matrix. The mechanical properties of the PA6-FG composites fiber was enhanced by adding FG in the polymer matrix. The new functionalization method paves the way to prepare graphene-based nanocomposites fiber simply, without disrupting the primary structures of nanometer-sized graphene.

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Periodical:

Key Engineering Materials (Volume 519)

Pages:

20-23

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.519.20

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Online since:

July 2012

Authors:

Hai Hui Liu, Wei Wei Peng, Yong Tan, Li Chen Hou, Xing Xiang Zhang

Keywords:

Fiber, Mechanical Property, Melt-Spinning, Nanocomposite, Nanometer-Sized Graphene

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