High-Strength, High-Barrier Bio-Based Polyester Nanocomposite Films by Binary Multiscale Boron Nitride Nanosheets

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Jiheng Ding
  • Hongran Zhao
  • Jing Su
  • Qinchao Chu
  • Hao Wang
  • Bin Fang
  • Mohammad Raza Miah
  • Jinggang Wang
  • Jin Zhu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number2308631
Journal / PublicationAdvanced Functional Materials
Volume34
Issue number1
Online published15 Sept 2023
Publication statusPublished - 2 Jan 2024

Abstract

Owing to the inferior dispersibility of boron nitride nanosheets (BNNSs) and weak interfacial interaction with the matrix, the performance of BNNS-based composites is usually far below theoretically predicted values. Here, binary multiscale BNNSs (LDH-BNNSs) fillers are synthesized through in situ growth of layered double hydroxide (LDH) on the BNNSs’ surfaces. LDH-BNNSs with a multiple mosaic interface show superior dispersion of nanosheets in matrix and extraordinary filler-matrix bonding. Density functional theory simulations reveal the stable dispersion mechanism of LDH-BNNSs. Moreover, the bio-based poly(ethylene furandicarboxylate) composites with 0.2 wt% LDH-BNNSs loading exhibit simultaneous improvements in tensile strength (≈140 MPa), Young's modulus (≈6.5 GPa), toughness (≈2.0 MJ m−3), and gas barrier properties. Regulation of the interfacial structures of binary multiscale BNNSs significantly increases the filler utilization of the nanosheets, leading to extraordinary stress transfer efficiency and a physical shielding effect. Therefore, this simple, efficient, and novel strategy has promised in enhancing composite performance, and it provides a novel way to develop strong, tough, and high-barrier bio-based polyester composites. © 2023 Wiley-VCH GmbH.

Research Area(s)

  • binary multiscale interfaces, bio-based polyester composites, boron nitride nanosheets, high barrier, high strength

Citation Format(s)

High-Strength, High-Barrier Bio-Based Polyester Nanocomposite Films by Binary Multiscale Boron Nitride Nanosheets. / Ding, Jiheng; Zhao, Hongran; Shi, Shuo et al.
In: Advanced Functional Materials, Vol. 34, No. 1, 2308631, 02.01.2024.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review