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Synthesis of a new polyurethane-based liner modified by carbon nanotube to prevent plasticizer migration

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Abstract

The aim of this work is the study of the reduction of dioctylphthalate (DOP) plasticizer migration from polyurethane (PU) to ethylene propylene diene monomer (EPDM) substrate by using a polyurethane-based liner containing carboxylated carbon nanotube (CNT). Dispersion of CNT in PU was well performed using DMAc solvent and sonication. Dispersion rate was evaluated by FESEM analysis. In order to study mechanical properties of the synthesized liners, tensile strength, elongation at break, and hardness analysis were investigated. The results showed that by increasing CNT content, tensile strength and hardness have not significantly changed, whereas the percentage of elongation at break has been increased. Swelling of the samples was studied by using acetone solvent and the results showed that the swelling rate increased slightly with increasing the CNT content. Migration of plasticizer was assessed by measurement of DOP content in the liner and EPDM by HPLC analysis. Based on the obtained results using a liner containing CNT as an inhibitor could prevent DOP migration.

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Authors and Affiliations

  1. Space Transportation Research Institute, Iranian Space Research Center, Tehran, Iran

    Tohid Farajpour & Hadi Rezaei-Vahidian

  2. Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran

    Saeid Moradi

Authors
  1. Tohid Farajpour
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  2. Saeid Moradi
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  3. Hadi Rezaei-Vahidian
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Correspondence to Hadi Rezaei-Vahidian.

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Farajpour, T., Moradi, S. & Rezaei-Vahidian, H. Synthesis of a new polyurethane-based liner modified by carbon nanotube to prevent plasticizer migration. Polym. Bull. 79, 2903–2914 (2022). https://doi.org/10.1007/s00289-021-03648-3

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  • DOI: https://doi.org/10.1007/s00289-021-03648-3

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