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Influence of multiwalled carbon nanotubes on the structure and properties of poly(ethylene‐ co ‐vinyl acetate‐ co ‐carbon monoxide) nanocomposites
Author(s) -
George Gibin,
Mahendran Arunjunairaj,
Murugesan Selvakumar,
Anandhan S.
Publication year - 2021
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.26158
Subject(s) - materials science , composite material , crystallinity , nanocomposite , carbon nanotube , composite number , thermal stability , ethylene vinyl acetate , polymer , chemical engineering , engineering , copolymer
In this work, composites of poly(ethylene‐ co ‐vinyl acetate‐ co ‐carbon monoxide) (EVACO)/surface‐modified multiwalled carbon nanotubes (m‐MWCNTs) were prepared using a solution casting technique. Acid treatment was employed for the surface modification of MWCNTs to improve the compatibility between polar EVACO and MWCNTs. The influences of m‐MWCNTs on the crystalline, mechanical, thermal, and electrical properties of EVACO at very low filler loading were systematically evaluated. The presence of m‐MWCNTs in the EVACO matrix influenced the crystallinity, and the respective changes were determined and quantified using dynamic scanning calorimetry and X‐ray diffraction. The mechanical properties of the composites were improved remarkably by the addition of a minute quantity (0.05, 0.1, 0.15, 0.2, and 0.25 wt%) of m‐MWCNTs. Additionally, m‐MWCNTs in the EVACO matrix improved the thermal stability and electrical properties of EVACO. However, the filler loading is below the threshold loading of the fillers, and there was no drastic improvement in the electrical conductivity of the composite.