The ability to accurately predict the rheological behavior of the blends of two incompatible polymers is critical to the polymer industry. The constitutive modeling of incompatible polymer blends requires understanding the structure and dynamics of the blends across different length scales. The polydispersity of chain length at the molecular level and nonuniformity of flow field due to dispersed domains at the mesoscopic level present significant challenges to this industrially relevant problem. This work proposes a modeling framework for linear and nonlinear rheology of industrial incompatible polymer blends with sea-island morphology. For the individual components, we adopt the Rolie-Double-Poly model and generate the relaxation spectrum from an optimized molecular weight distribution. We derive a new mixing rule without empirical parameters from the flow field analysis inside and outside the droplets. The phase interface, modeled by an ellipsoidal model, contributes to the apparent rheology only at low shear rates. Our modeling approach is verified by the shear and extensional rheology of eight polymer blends with a broad range of viscosity ratios (0.01–100). We also show that the model has the ability to predict the nonlinear rheological behaviors of incompatible polymer blends with known molecular weight distributions and phase morphology.
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March 2024
Research Article|
February 01 2024
Modeling linear and nonlinear rheology of industrial incompatible polymer blends
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Xinyang Zhao
;
Xinyang Zhao
1
Advanced Rheology Institute, Department of Polymer Science and Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University
, Shanghai 200240, People’s Republic of China
2
DPI
, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
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Benke Li
;
Benke Li
1
Advanced Rheology Institute, Department of Polymer Science and Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University
, Shanghai 200240, People’s Republic of China
2
DPI
, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
3
National-Certified Enterprise Technology Center, Kingfa Science and Technology Co., Ltd.
, Guangzhou 510663, People’s Republic of China
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Sijun Liu
;
Sijun Liu
1
Advanced Rheology Institute, Department of Polymer Science and Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University
, Shanghai 200240, People’s Republic of China
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Li Peng
;
Li Peng
3
National-Certified Enterprise Technology Center, Kingfa Science and Technology Co., Ltd.
, Guangzhou 510663, People’s Republic of China
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Xianbo Huang
;
Xianbo Huang
a)
3
National-Certified Enterprise Technology Center, Kingfa Science and Technology Co., Ltd.
, Guangzhou 510663, People’s Republic of China
a)Authors to whom correspondence should be addressed; electronic mail: [email protected] and [email protected]
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Wei Yu
Wei Yu
a)
1
Advanced Rheology Institute, Department of Polymer Science and Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University
, Shanghai 200240, People’s Republic of China
2
DPI
, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
a)Authors to whom correspondence should be addressed; electronic mail: [email protected] and [email protected]
Search for other works by this author on:
Xinyang Zhao
1,2
Benke Li
1,2,3
Sijun Liu
1
Li Peng
3
Xianbo Huang
3,a)
Wei Yu
1,2,a)
1
Advanced Rheology Institute, Department of Polymer Science and Engineering, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University
, Shanghai 200240, People’s Republic of China
2
DPI
, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
3
National-Certified Enterprise Technology Center, Kingfa Science and Technology Co., Ltd.
, Guangzhou 510663, People’s Republic of China
a)Authors to whom correspondence should be addressed; electronic mail: [email protected] and [email protected]
J. Rheol. 68, 187–204 (2024)
Article history
Received:
July 17 2023
Accepted:
January 09 2024
Citation
Xinyang Zhao, Benke Li, Sijun Liu, Li Peng, Xianbo Huang, Wei Yu; Modeling linear and nonlinear rheology of industrial incompatible polymer blends. J. Rheol. 1 March 2024; 68 (2): 187–204. https://doi.org/10.1122/8.0000728
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