Effects of Functionalized Multi-walled Carbon Nanotubes on the Performance of Wood–Plastic Composites 


Vol. 25,  No. 1, pp. 309-316, Jan.  2024
10.1007/s12221-023-00388-1


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  Abstract

The aggregation of carbon nanotubes (CNTs) in thermoplastic polymers in the process of mixing is challenging, leading to inappropriate distribution of CNTs in the composites, thus limiting the performance of mixed CNT–polymer matrix. Therefore, this study proposes a strategy to strengthen the performance of wood–plastic composites (WPCs) using the functional CNTs. For this purpose, the raw CNTs with 0, 1, and 2 wt% contents as a reinforcement, and Maleic Anhydride grafted Polyethylene (MAPE) with 0 and 3 wt% as a coupling agent were used. Besides, 2 wt% of functionalized CNTs were separately applied. Materials were compounded in an internal mixer (Haake), and then the samples were prepared by the injection molding machine. Mechanical properties of the composite, including tensile strength and modulus and physical properties, including water absorption and thickness swelling, were tested. We found that increasing the contents of raw CNTs from 0 to 2 wt% led to the increase in the tensile strength and modulus of sample up to 36.7% and 12%, and decrease in water absorption and thickness swelling up to 54.5% and 19.4%, respectively. The physical and mechanical properties of samples were improved by adding MAPE up to 3 wt%. The dispersion of CNTs in HDPE was increased using the functional CNT nanoparticles, with an improvement in the morphological properties of WPCs. The main finding is that the adhesion of WPCs fiber matrix was highly improved in the presence of 2 wt% of functionalized CNTs.

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  Cite this article

[IEEE Style]

M. Farsi, M. Farsi, F. M. Sani, M. Ebadi, M. Shahbabaei, "Effects of Functionalized Multi-walled Carbon Nanotubes on the Performance of Wood–Plastic Composites," Fibers and Polymers, vol. 25, no. 1, pp. 309-316, 2024. DOI: 10.1007/s12221-023-00388-1.

[ACM Style]

Mohammad Farsi, Mohammad Farsi, Fatemeh Maashi Sani, Masoud Ebadi, and Majid Shahbabaei. 2024. Effects of Functionalized Multi-walled Carbon Nanotubes on the Performance of Wood–Plastic Composites. Fibers and Polymers, 25, 1, (2024), 309-316. DOI: 10.1007/s12221-023-00388-1.

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