Core-double-shell CNTs@SO@PDA and Functionalized BNNS as Nano-hybrids for Synergistically Enhancing Mechanical and Breakdown Performances of Epoxy with Sandwich-like Structure 


Vol. 23,  No. 7, pp. 2030-2041, Jul.  2022
10.1007/s12221-022-4127-y


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  Abstract

Carbon-based nanofillers reinforced composites with superb mechanical and electric properties are of growing importance in numerous applications. However, the ultra-high conductivities of carbon-based nanofillers will severely degrade the insulating performance of the polymer, restricting the implementation in electronic domain and power system. Herein, core-double-shell carbon nanotubes coated with silica and polydopamine (CNTs@SO@PDA) are prepared, significantly improving the tensile strength of the composite while maintaining its insulating property. Meanwhile, the sandwich-structured composite which is consisted of CNTs@SO@PDA/epoxy as central layer and boron nitride nanosheets coated by polydopamine (BNNS@PDA) filled epoxy as shielding layers achieved excellent breakdown strength of 19.5 kV/mm as well as superb tensile strength of 64.84 MPa, increasing about 13.37 % and 24.24 % compared with neat epoxy respectively. The simulation results demonstrate the electric field optimization and redistribution effect of sandwichstructured nanocomposites. This work provides a method for fabricating epoxy nanocomposite with marvelous mechanical and insulating properties, which can be applied to future electronic protectors and insulation equipment.

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  Cite this article

[IEEE Style]

B. Gou, C. Xie, R. Wang, H. Xu, J. Zhou, L. Li, "Core-double-shell CNTs@SO@PDA and Functionalized BNNS as Nano-hybrids for Synergistically Enhancing Mechanical and Breakdown Performances of Epoxy with Sandwich-like Structure," Fibers and Polymers, vol. 23, no. 7, pp. 2030-2041, 2022. DOI: 10.1007/s12221-022-4127-y.

[ACM Style]

Bin Gou, Congzhen Xie, Rui Wang, Huasong Xu, Jiangang Zhou, and Licheng Li. 2022. Core-double-shell CNTs@SO@PDA and Functionalized BNNS as Nano-hybrids for Synergistically Enhancing Mechanical and Breakdown Performances of Epoxy with Sandwich-like Structure. Fibers and Polymers, 23, 7, (2022), 2030-2041. DOI: 10.1007/s12221-022-4127-y.

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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