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Investigation of mechanical and thermal properties of the cetyltrimethylammonium bromide functionalized molybdenum disulfide (MoS2)/epoxy composites

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Abstract

Molybdenum disulfide (MoS2), a 2D layered material has been recognised as a new paradigm in the area of materials science due to its graphene like structure. Herein, we prepared functionalized MoS2 nanosheets through one-pot hydrothermal technique using cationic surfactant, cetyltrimethylammonium bromide (CTAB). The surfactant functionalized MoS2 (CTAB-MoS2) was subsequently dispersed in epoxy matrix at the loading level of 0.1–0.5 wt% to investigate the reinforcing competence of MoS2 on the mechanical and thermal properties of the composites. Fourier transform infrared spectroscopy, X-ray diffraction and field emission scanning electron microscopy (FE-SEM) were used to characterize the microstructure and morphology of the hydrothermally prepared pristine MoS2 and CTAB-MoS2. Dynamic mechanical and tensile properties were studied to comprehend the effect of functionalized MoS2 on the mechanical properties of the composites. At 0.2 wt% loading, the tensile strength and Young’s modulus was improved by ~23 and 26.7%, respectively, while ~83% improvement in storage modulus was recorded. Thermal stability of all the studied specimens were compared by selecting the temperatures at 10 and 50% weight losses which showed small decrease in onset degradation temperature.

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Acknowledgement

Authors are thankful to the Director of CSIR-CMERI. Authors are also thankful to Department of Science and Technology, New Delhi, India for the financial supports (GAP041212) and Council of Scientific and Industrial Research, New Delhi, India for funding MEGA Institutional Project (ESC0112/RP-II).

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Authors and Affiliations

  1. Surface Engineering and Tribology Division, Council of Scientific and Industrial Research-Central Mechanical Engineering Research Institute, Durgapur, 713209, India

    Suman Chhetri, Nitai Chandra Adak, Pranab Samanta, Tapas Kuila & Naresh Chandra Murmu

  2. Academy of Scientific and Innovative Research (AcSIR), CSIR-CMERI, Campus, Durgapur, 713209, India

    Suman Chhetri, Nitai Chandra Adak, Pranab Samanta, Tapas Kuila & Naresh Chandra Murmu

  3. Center for Advanced Materials Processing, Council of Scientific and Industrial Research-Central Mechanical Engineering Research Institute, Durgapur, 713209, India

    Nilrudra Mandal

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  1. Suman Chhetri
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  2. Nitai Chandra Adak
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  4. Nilrudra Mandal
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  5. Tapas Kuila
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Correspondence to Tapas Kuila or Naresh Chandra Murmu.

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Chhetri, S., Adak, N.C., Samanta, P. et al. Investigation of mechanical and thermal properties of the cetyltrimethylammonium bromide functionalized molybdenum disulfide (MoS2)/epoxy composites. Polym. Bull. 75, 327–343 (2018). https://doi.org/10.1007/s00289-017-2037-8

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  • DOI: https://doi.org/10.1007/s00289-017-2037-8

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