Increasing the toughness of nylon 12 by the incorporation of functionalized graphene

The effect of functionalized graphene (FG) on the mechanical properties, especially toughness, of nylon12 was investigated. The results revealed that the incorporation of a very small amount (about 0.6 wt%) of the FG caused a significant improvement in ultimate tensile strength, elongation, impact s...

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Bibliographic Details
Published in:Carbon (New York) 2010-12, Vol.48 (15), p.4309-4314
Main Authors: Rafiq, Rehman, Cai, Dongyu, Jin, Jie, Song, Mo
Format: Article
Language:English
Subjects:
Carbon
Cross-disciplinary physics: materials science
rheology
Elongation
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Graphene
Impact strength
Materials science
Mechanical properties
Nylon 12
Physics
Specific materials
Toughness
Ultimate tensile strength
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Summary:The effect of functionalized graphene (FG) on the mechanical properties, especially toughness, of nylon12 was investigated. The results revealed that the incorporation of a very small amount (about 0.6 wt%) of the FG caused a significant improvement in ultimate tensile strength, elongation, impact strength and toughness. With 0.6 wt% FG ultimate tensile strength and elongation at break of the nylon 12 are improved by ∼35% and ∼200%, respectively. The K Ic of the nylon 12 is ∼1.28 MPa m 0.5 and the incorporation of 0.6 wt% FG causes a significant increase of 72% (∼2.2 MPa m 0.5). 0.6 wt% FG also causes a significant improvement of 175% in impact failure energy of the nylon 12. The incorporation of FG resulted in an increase in amount of γ-phase of nylon12 which could be the direct reason for the increase of toughness.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2010.07.043