Strengthening, toughing and thermally stable ultra-thin MXene nanosheets/polypropylene nanocomposites via nanoconfinement

Shi, Yongqian and Liu, Chuan and Liu, Lu and Fu, Libu and Yu, Bin and Lv, Yuancai and Yang, Fuqiang and Song, Pingan ORCID: https://orcid.org/0000-0003-1082-652X (2019) Strengthening, toughing and thermally stable ultra-thin MXene nanosheets/polypropylene nanocomposites via nanoconfinement. Chemical Engineering Journal, 378:122267. pp. 1-12. ISSN 1385-8947


Abstract

Developing high-performance polymer nanocomposites with outstanding heat resistance and high strength, and superior ductility is vital for their practical applications. However, it is a great challenge to achieve simultaneous improvements in the strength and ductility due to the presence of antagonistic mechanisms in the both parameters. Nanoconfinement structure affording heat resistance and high strength, and good extensibility is inspired by the natural world, such as spider web, silkworm net, and honeycomb consisting of three-dimensional networks generated by vast hydrogen bonds. Here, we reported the methods of oxygen-free fast drying assisted solution casting and melt blending for fabricating advanced ultrathin two-dimensional (2D) titanium carbide (Ti3C2Tx)/polypropylene nanocomposites with significantly enhanced initial degradation temperature (79.1 °C increase), tensile strength (35.3% increase), ductility (674.6% increase) and storage modulus (102.2% increase). The thermal stability and mechanical properties improvements induced by Ti3C2Tx nanosheets are superior to those of similar 2D nanomaterials, such as graphene, molybdenum disulfide, montmorillonite, layered double hydroxide, and even 1D carbon nanotubes because of the combination of H-bonds induced nanoconfinement structure with the physical barrier effect of ultrathin Ti3C2Tx nanosheets. This work provides a facile nanoconfinement-inspired strategy for the design of thermally stable, mechanical strong and ductile polymer materials and a paradigm for broadening the application of 2D MXenes in polymeric materials.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 22 Jan 2021 06:03
Last Modified: 31 Jan 2021 23:29
Uncontrolled Keywords: MXene; Nanoconfinement; Mechanical property; Thermal stability; Nanocomposite
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials
40 ENGINEERING > 4016 Materials engineering > 401609 Polymers and plastics
40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280105 Expanding knowledge in the chemical sciences
28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
24 MANUFACTURING > 2409 Industrial chemicals and related products > 240908 Organic industrial chemicals (excl. resins, rubber and plastics)
24 MANUFACTURING > 2409 Industrial chemicals and related products > 240911 Resins
Funding Details:
Identification Number or DOI: https://doi.org/10.1016/j.cej.2019.122267
URI: http://eprints.usq.edu.au/id/eprint/40571

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