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Li G, Zhang M, Ji H, Ma Y, Chen T, Xie L. The optimization of Carreau model and rheological behavior of alumina/linear low-density polyethylene composites with different alumina content and diameter. E-POLYMERS 2021. [DOI: 10.1515/epoly-2021-0077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The influence of alumina (Al2O3) content and diameter on the viscosity characteristics of the alumina/linear low-density polyethylene (Al2O3/LLDPE) composites was discussed. The composites were fabricated by melt mixing with the two-rotor continuous mixer. The equivalent surface average particle diameter (
d
¯
A
{\bar{d}}_{\text{A}}
) of Al2O3 was calculated by the scanning electron microscopic (SEM) images of samples. The steady-state and dynamic rheological measurements were used to study the evolution of viscosity parameters. With the Carreau model fitting to the steady-rate rheological data, zero-shear viscosity η
0, time constant λ, and power law index n of composites were obtained. On this basis, an optimized Carreau model was established by studying the changes of these parameter values. The rheological result presented that the parameter values (η
0, λ, and n) were linearly proportional to the filling content of Al2O3 particles for nano-Al2O3/LLDPE composites. However, these parameters were, respectively, related to
d
¯
A
{\bar{d}}_{\text{A}}
,
d
¯
A
2
{\bar{d}}_{\text{A}}^{2}
, and
d
¯
A
3
{\bar{d}}_{\text{A}}^{3}
for micron-Al2O3/LLDPE composites.
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Affiliation(s)
- Guo Li
- School of Mechanical and Power Engineering, East China University of Science and Technology , Shanghai , 200237 , China
| | - Mitao Zhang
- School of Mechanical and Power Engineering, East China University of Science and Technology , Shanghai , 200237 , China
| | - Huajian Ji
- School of Mechanical and Power Engineering, East China University of Science and Technology , Shanghai , 200237 , China
| | - Yulu Ma
- School of Mechanical and Power Engineering, East China University of Science and Technology , Shanghai , 200237 , China
| | - Tao Chen
- Faculty of Chemical Engineering, Kunming University of Science and Technology , Kunming , 650031 , China
| | - Linsheng Xie
- School of Mechanical and Power Engineering, East China University of Science and Technology , Shanghai , 200237 , China
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Exfoliation of Montmorillonite in polymer matrix and its influence on the nanocomposites properties. Polym J 2019. [DOI: 10.15407/polymerj.41.03.149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Analysis of crystalline structure and morphology of isotactic polypropylene under the coexistence of organic montmorillonite particles and shear flow. POLYMER 2016. [DOI: 10.1016/j.polymer.2015.11.053] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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