In situ preparation of PI/amino-functionalized graphene composites and their properties

Qingze Jiao; Shenli Zhang; Jinhuan Wang; Hansheng Li; Qin Wu; Yun Zhao

doi:10.1080/1536383X.2014.967848

In situ preparation of PI/amino-functionalized graphene composites and their properties

Qingze Jiao, Shenli Zhang, Jinhuan Wang, Hansheng Li, Qin Wu, Yun Zhao^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Amino-functionalized graphene (GE-NH₂) was synthesized and characterized. A series of polyimide (PI)/GE-NH₂ nanocomposites were then prepared by in situ polymerization. The influence of GE-NH₂ content on mechanical properties and thermal stability of the as-prepared nanocomposites was investigated. It was found that the mechanical properties of the nanocomposites were enhanced with the increase of GE-NH₂ loading. When the content of GE-NH₂ was 0.5 wt%, the tensile strength of PI/GE-NH₂ nanocomposites was up to 125.43 MPa (38.84% higher than that of neat PI). The modulus of PI/GE-NH₂ was increased by 48.48%. The decomposition temperature at 5 wt% of weight loss for PI/GE-NH₂ nanocomposites with 1 wt% of GE-NH₂ was increased from 541 (neat PI) to 556C. The improvement of mechanical properties and the thermal stability of PI/GE-NH₂ nanocomposites were due to the strong chemical bond and interfacial interaction between GE-NH₂ and PI matrix.

Original language	English
Pages (from-to)	680-686
Number of pages	7
Journal	Fullerenes Nanotubes and Carbon Nanostructures
Volume	23
Issue number	8
DOIs	https://doi.org/10.1080/1536383X.2014.967848
Publication status	Published - 3 Aug 2015

Keywords

amino-functionalized graphene
in situ polymerization
nanocomposites
polyimide

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10.1080/1536383X.2014.967848

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Jiao, Q., Zhang, S., Wang, J., Li, H., Wu, Q., & Zhao, Y. (2015). In situ preparation of PI/amino-functionalized graphene composites and their properties. Fullerenes Nanotubes and Carbon Nanostructures, 23(8), 680-686. https://doi.org/10.1080/1536383X.2014.967848

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title = "In situ preparation of PI/amino-functionalized graphene composites and their properties",

abstract = "Amino-functionalized graphene (GE-NH2) was synthesized and characterized. A series of polyimide (PI)/GE-NH2 nanocomposites were then prepared by in situ polymerization. The influence of GE-NH2 content on mechanical properties and thermal stability of the as-prepared nanocomposites was investigated. It was found that the mechanical properties of the nanocomposites were enhanced with the increase of GE-NH2 loading. When the content of GE-NH2 was 0.5 wt%, the tensile strength of PI/GE-NH2 nanocomposites was up to 125.43 MPa (38.84% higher than that of neat PI). The modulus of PI/GE-NH2 was increased by 48.48%. The decomposition temperature at 5 wt% of weight loss for PI/GE-NH2 nanocomposites with 1 wt% of GE-NH2 was increased from 541 (neat PI) to 556C. The improvement of mechanical properties and the thermal stability of PI/GE-NH2 nanocomposites were due to the strong chemical bond and interfacial interaction between GE-NH2 and PI matrix.",

keywords = "amino-functionalized graphene, in situ polymerization, nanocomposites, polyimide",

author = "Qingze Jiao and Shenli Zhang and Jinhuan Wang and Hansheng Li and Qin Wu and Yun Zhao",

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doi = "10.1080/1536383X.2014.967848",

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T1 - In situ preparation of PI/amino-functionalized graphene composites and their properties

AU - Jiao, Qingze

AU - Zhang, Shenli

AU - Wang, Jinhuan

AU - Li, Hansheng

AU - Wu, Qin

AU - Zhao, Yun

PY - 2015/8/3

Y1 - 2015/8/3

N2 - Amino-functionalized graphene (GE-NH2) was synthesized and characterized. A series of polyimide (PI)/GE-NH2 nanocomposites were then prepared by in situ polymerization. The influence of GE-NH2 content on mechanical properties and thermal stability of the as-prepared nanocomposites was investigated. It was found that the mechanical properties of the nanocomposites were enhanced with the increase of GE-NH2 loading. When the content of GE-NH2 was 0.5 wt%, the tensile strength of PI/GE-NH2 nanocomposites was up to 125.43 MPa (38.84% higher than that of neat PI). The modulus of PI/GE-NH2 was increased by 48.48%. The decomposition temperature at 5 wt% of weight loss for PI/GE-NH2 nanocomposites with 1 wt% of GE-NH2 was increased from 541 (neat PI) to 556C. The improvement of mechanical properties and the thermal stability of PI/GE-NH2 nanocomposites were due to the strong chemical bond and interfacial interaction between GE-NH2 and PI matrix.

AB - Amino-functionalized graphene (GE-NH2) was synthesized and characterized. A series of polyimide (PI)/GE-NH2 nanocomposites were then prepared by in situ polymerization. The influence of GE-NH2 content on mechanical properties and thermal stability of the as-prepared nanocomposites was investigated. It was found that the mechanical properties of the nanocomposites were enhanced with the increase of GE-NH2 loading. When the content of GE-NH2 was 0.5 wt%, the tensile strength of PI/GE-NH2 nanocomposites was up to 125.43 MPa (38.84% higher than that of neat PI). The modulus of PI/GE-NH2 was increased by 48.48%. The decomposition temperature at 5 wt% of weight loss for PI/GE-NH2 nanocomposites with 1 wt% of GE-NH2 was increased from 541 (neat PI) to 556C. The improvement of mechanical properties and the thermal stability of PI/GE-NH2 nanocomposites were due to the strong chemical bond and interfacial interaction between GE-NH2 and PI matrix.

KW - amino-functionalized graphene

KW - in situ polymerization

KW - nanocomposites

KW - polyimide

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In situ preparation of PI/amino-functionalized graphene composites and their properties

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