Enhanced mechanical and thermal properties of polyurethane/functionalised graphene oxide composites by in situ polymerisation

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Enhanced mechanical and thermal properties of polyurethane/functionalised graphene oxide composites by in situ polymerisation. / Le Hoang Sinh; Nguyen Dang Luong, ; Seppala, Jukka.

In: PLASTICS RUBBER AND COMPOSITES, Vol. 48, No. 10, 13.09.2019, p. 466-476.

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@article{4e1e22ec7be34b339a5d6101440d5bb1,
title = "Enhanced mechanical and thermal properties of polyurethane/functionalised graphene oxide composites by in situ polymerisation",
abstract = "Isocyanate-functionalised graphene (iGO) was prepared and incorporated into a thermoplastic polyurethane via an in situ polymerisation. Firstly, graphene oxide was successfully modified using a mixture of isocyanate- and diisocyanate-containing compounds, leading to the formation of good dispersions of resulting functional graphene oxide in organic solvents, such as N,N-dimethylacetamide and N,N-dimethylformamide. The addition of iGO into polyurethane matrix improved both mechanical and thermal properties in the polyurethane/iGO composites relative to neat polyurethane. An addition of only 0.03 wt-{\%} of functionalised graphene into the polyurethane increased Young's modulus by 1.4 times and tensile strength by two times. Meanwhile, the elongation at break was similar to that of the neat polymer. In addition, dynamic mechanical analysis also confirmed the improvement in storage modulus of the polymer composites especially at high-temperature range. We believe that the developed modification approach for graphene oxide and polyurethane/graphene composites presented herein could be useful in polymer/graphene composite development.",
keywords = "Graphene oxide, functionalised graphene, polyurethane, polymer composites, THERMOPLASTIC POLYURETHANE, NANOCOMPOSITES",
author = "{Le Hoang Sinh} and {Nguyen Dang Luong} and Jukka Seppala",
year = "2019",
month = "9",
day = "13",
doi = "10.1080/14658011.2019.1664820",
language = "English",
volume = "48",
pages = "466--476",
journal = "PLASTICS RUBBER AND COMPOSITES",
issn = "1465-8011",
number = "10",

}

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TY - JOUR

T1 - Enhanced mechanical and thermal properties of polyurethane/functionalised graphene oxide composites by in situ polymerisation

AU - Le Hoang Sinh, null

AU - Nguyen Dang Luong, null

AU - Seppala, Jukka

PY - 2019/9/13

Y1 - 2019/9/13

N2 - Isocyanate-functionalised graphene (iGO) was prepared and incorporated into a thermoplastic polyurethane via an in situ polymerisation. Firstly, graphene oxide was successfully modified using a mixture of isocyanate- and diisocyanate-containing compounds, leading to the formation of good dispersions of resulting functional graphene oxide in organic solvents, such as N,N-dimethylacetamide and N,N-dimethylformamide. The addition of iGO into polyurethane matrix improved both mechanical and thermal properties in the polyurethane/iGO composites relative to neat polyurethane. An addition of only 0.03 wt-% of functionalised graphene into the polyurethane increased Young's modulus by 1.4 times and tensile strength by two times. Meanwhile, the elongation at break was similar to that of the neat polymer. In addition, dynamic mechanical analysis also confirmed the improvement in storage modulus of the polymer composites especially at high-temperature range. We believe that the developed modification approach for graphene oxide and polyurethane/graphene composites presented herein could be useful in polymer/graphene composite development.

AB - Isocyanate-functionalised graphene (iGO) was prepared and incorporated into a thermoplastic polyurethane via an in situ polymerisation. Firstly, graphene oxide was successfully modified using a mixture of isocyanate- and diisocyanate-containing compounds, leading to the formation of good dispersions of resulting functional graphene oxide in organic solvents, such as N,N-dimethylacetamide and N,N-dimethylformamide. The addition of iGO into polyurethane matrix improved both mechanical and thermal properties in the polyurethane/iGO composites relative to neat polyurethane. An addition of only 0.03 wt-% of functionalised graphene into the polyurethane increased Young's modulus by 1.4 times and tensile strength by two times. Meanwhile, the elongation at break was similar to that of the neat polymer. In addition, dynamic mechanical analysis also confirmed the improvement in storage modulus of the polymer composites especially at high-temperature range. We believe that the developed modification approach for graphene oxide and polyurethane/graphene composites presented herein could be useful in polymer/graphene composite development.

KW - Graphene oxide

KW - functionalised graphene

KW - polyurethane

KW - polymer composites

KW - THERMOPLASTIC POLYURETHANE

KW - NANOCOMPOSITES

U2 - 10.1080/14658011.2019.1664820

DO - 10.1080/14658011.2019.1664820

M3 - Article

VL - 48

SP - 466

EP - 476

JO - PLASTICS RUBBER AND COMPOSITES

JF - PLASTICS RUBBER AND COMPOSITES

SN - 1465-8011

IS - 10

ER -

ID: 37445892