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Fabrication of PA6/MoS2 nanocomposites via melt blending of PA6 with PA6/PEG modified-MoS2 masterbatch

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Abstract

Modified MoS2 (mMoS2) was prepared by reacting MoS2 with alkyl lithium and amine-terminated long-chain polyethylene glycol (APEG) derivatives via a one-pot modification process. The APEG on the surface of MoS2 greatly limits the aggregation of MoS2. After that, polyamide 6 (PA6)/mMoS2 masterbatch was prepared via a solution mixing of mMoS2 and PA6. Then, the PA6/mMoS2 nanocomposites were fabricated through melt blending of masterbatch and commercial PA6. The structure and properties of mMoS2 and PA6/mMoS2 composites were investigated. The thermal stability and glass transition temperature of the PA6/mMoS2 composites were slightly improved, and their tensile strength, Young’s modulus and storage modulus of PA6/mMoS2 composites increased by up to 57, 110 and 200%, respectively, compared to those of the pristine PA6. Therefore, this study provides a convenient method for achieving enhanced interaction between the polymer chains and MoS2, and APEG modification would be an effective method for producing well-dispersed MoS2 composites with high thermal stability and excellent mechanical properties.

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Acknowledgements

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MIST) (No. NRF-2018R1A5A1025137 and No. NRF-2019R1A2C3003890).

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, China

    He-Xin Zhang

  2. Department of Polymer Science and Engineering, Kyungpook National University, Daegu, Korea

    Joon-Young Park & Keun-Byoung Yoon

  3. School of Architecture and Civil Engineering, Kyungpook National University, Daegu, Korea

    Dong-Eun Lee

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  1. He-Xin Zhang
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Correspondence to Dong-Eun Lee or Keun-Byoung Yoon.

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Zhang, HX., Park, JY., Lee, DE. et al. Fabrication of PA6/MoS2 nanocomposites via melt blending of PA6 with PA6/PEG modified-MoS2 masterbatch. Polym. Bull. 79, 10639–10652 (2022). https://doi.org/10.1007/s00289-021-04068-z

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