Dependences of Rheological and Compression Mechanical
Properties on Cellular Structures
for Impact-Protective Materials
Posted on 2017-05-22 - 16:34
In
this study, three typical impact-protective materials, D3O,
PORON XRD, and DEFLEXION were chosen to explore the dependences of
rheological and compression mechanical properties on the internal
cellular structures with polymer matrix characteristics, which were
examined using Fourier transform infrared spectroscopy, thermogravimetric
analyses, and scanning electron microscopy with energy dispersive
spectroscopy. The rheological property of these three foaming materials
were examined using a rheometer, and the mechanical property in a
compression mode was further examined using an Instron universal tensile
testing machine. The dependences of rheological parameters, such as
dynamic moduli, normalized moduli, and loss tangent, on angular frequency,
and the dependences of mechanical properties in compression, such
as the degree of strain-hardening, hysteresis, and elastic recovery,
on the strain rate for D3O, PORON XRD, and DEFLEXION can be well-correlated
with their internal cellular structural parameters, revealing, for
example, that D3O and PORON XRD exhibit simultaneously high strength
and great energy loss in a high-frequency impact, making them suitable
for use as soft, close-fitting materials; however, DEFLEXION dissipates
much energy whether it suffers a large strain rate or not, making
it suitable for use as a high-risk impact-protective material. The
rheometry and compression tests used in this study can provide the
basic references for selecting and characterizing certain impact-protective
materials for applications.
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Tang, Miao; Huang, Gang; Zhang, Huanhuan; Liu, Yuling; Chang, Haijian; Song, Hongzan; et al. (2017). Dependences of Rheological and Compression Mechanical
Properties on Cellular Structures
for Impact-Protective Materials. ACS Publications. Collection. https://doi.org/10.1021/acsomega.7b00242
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AUTHORS (8)
MT
Miao Tang
GH
Gang Huang
HZ
Huanhuan Zhang
YL
Yuling Liu
HC
Haijian Chang
HS
Hongzan Song
DX
Donghua Xu
ZW
Zhigang Wang