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The effect of two‐dimensional d‐Ti 3 C 2 on the mechanical and thermal conductivity properties of thermoplastic polyurethane composites
Author(s) -
Wang Xiaolong,
Wang Libo,
He Yan,
Wu Meng,
Zhou Aiguo
Publication year - 2020
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.25374
Subject(s) - materials science , composite material , thermoplastic polyurethane , monolayer , thermal conductivity , scanning electron microscope , layer (electronics) , polyurethane , elastomer , nanotechnology
In this study, Ti 3 C 2 was delaminated into monolayer or few‐layer d‐Ti 3 C 2 nanosheets, followed by preparation of d‐Ti 3 C 2 /thermoplastic polyurethane (TPU) composites. The products were characterized by X‐ray diffraction and field emission scanning electron microscopy. The effects of d‐Ti 3 C 2 loading on the thermal and mechanical properties of the composites were investigated and the fracture morphology was analyzed. Results showed that the prepared d‐Ti 3 C 2 was a monolayer or few‐layer nanosheets and the monolayer thickness is about 1.2 nm. The two‐dimensional d‐Ti 3 C 2 was uniformly dispersed in the TPU matrix. The addition of d‐Ti 3 C 2 nanosheets increased the thermal conductivity of TPU and also improved the mechanical properties of the matrix. When d‐Ti 3 C 2 loading was 1 wt%, the specific strength and specific elongation were improved by about 29% and 53%, meanwhile the dissipated energies increased by 0.3 kJ/m 3 .