Preparation and dynamic mechanical properties of boron carbide andorganosilicon two-dimensional laminated composites

MA Chunyan; WANG Jun; BAI Junwei; DENG Jianguo

doi:10.13801/j.cnki.fhclxb.20210609.003

Volume 39 Issue 3

Mar. 2021

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MA Chunyan, WANG Jun, BAI Junwei, et al. Preparation and dynamic mechanical properties of boron carbide andorganosilicon two-dimensional laminated composites[J]. Acta Materiae Compositae Sinica, 2022, 39(3): 1091-1101. doi: 10.13801/j.cnki.fhclxb.20210609.003

Citation:

MA Chunyan, WANG Jun, BAI Junwei, et al. Preparation and dynamic mechanical properties of boron carbide andorganosilicon two-dimensional laminated composites[J]. Acta Materiae Compositae Sinica, 2022, 39(3): 1091-1101. doi: 10.13801/j.cnki.fhclxb.20210609.003

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Preparation and dynamic mechanical properties of boron carbide andorganosilicon two-dimensional laminated composites

doi: 10.13801/j.cnki.fhclxb.20210609.003

MA Chunyan^{1, 2},
WANG Jun¹,
BAI Junwei³,
DENG Jianguo^{1
,
,}

1.
Institute of Chemical Materials, China Academy of Engineering Physics, Sichuan 621000, China
2.
Sichuan Research Center of New Materials, Sichuan 621000, China
3.
College of Polymer Science and Engineering, Sichuan University, Sichuan 610065, China

Received Date: 2021-03-16
Accepted Date: 2021-06-03
Rev Recd Date: 2021-06-02

Available Online: 2021-06-09

Publish Date: 2021-03-01

Abstract

Abstract

The development of science and technology has put forward higher and higher requirements for material properties. It is an effective way to achieve the best performance in a specific direction by ordering the internal structure of materials. However, the traditional one-way freezing technology cannot achieve the preparation of two-dimensional ordered structure. B₄C layered scaffolds with single orientation were prepared by bidirectional freezing method. The layered scaffolds were filled with polydimethylsiloxane (PDMS) to prepare the two-dimensional layered boron carbide and organosilicate composites with anisotropy. There is an alternate arrangement structure of PDMS and B₄C skeleton at the growth plane of A in the composite material. It is a stacked structure like ocean waves at the growth plane of B. The layered scaffold maintains an obvious two-dimensional ordered layered structure in the composite material. The maximum in-plane anisotropy ratio of dynamic modulus of the composite can reach 12.9, and the dynamic modulus shows obvious Payne effect. It provides some new methods and ideas for the preparation of anisotropic composite material systems.
- B₄C,
- bidirectional freeze-cast,
- ice-template,
- two-dimensional ordered structure,
- 3D,
- anisotropy,
- organosilicate,
- PDMS
Long Abstrsct
Innovation Points

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References(26)

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