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Effect of Morphology/Structure on the Phase Behavior and Nonlinear Rheological Properties of NR/SBR Blends

The evolution of the morphology/structure and the nonlinear viscoelasticity of rubber blends under large amounts of strain are key scientific issues for the design and manufacture of rubber blends. The rheological responses of natural rubber/styrene-butadiene rubber (NR/SBR) blends are traced over a...

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Autores principales: Yang, Li, Shi, Xuanyu, Sun, Shihao, Zhong, Jun, Yu, Xiaofeng, Wang, Danling, Song, Yihu, Zuo, Min, Zheng, Qiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320496/
https://www.ncbi.nlm.nih.gov/pubmed/35877510
http://dx.doi.org/10.3390/gels8070425
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author Yang, Li
Shi, Xuanyu
Sun, Shihao
Zhong, Jun
Yu, Xiaofeng
Wang, Danling
Song, Yihu
Zuo, Min
Zheng, Qiang
author_facet Yang, Li
Shi, Xuanyu
Sun, Shihao
Zhong, Jun
Yu, Xiaofeng
Wang, Danling
Song, Yihu
Zuo, Min
Zheng, Qiang
author_sort Yang, Li
collection PubMed
description The evolution of the morphology/structure and the nonlinear viscoelasticity of rubber blends under large amounts of strain are key scientific issues for the design and manufacture of rubber blends. The rheological responses of natural rubber/styrene-butadiene rubber (NR/SBR) blends are traced over a wide range of blend compositions to gain an insight into the effect of blend morphology on their nonlinear viscoelasticity. We also prepare NR + SBR physical blends without melt mixing to distinguish the contributions of composition and blend morphology to the viscoelastic response. The microscopic heterogeneous gel-like structure of NR/SBR blends may remarkably weaken their strain softening and improve their modulus hysteretic recovery under large strain, which may be attributed to the heterogeneous microscopic deformation for the NR and SBR phases. Furthermore, additional elastic contribution resulted from the increasing interfacial energy of domain deformation. This may provide some new insights into the effect of blend morphology on the Payne effect of rubber blends.
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spelling pubmed-93204962022-07-27 Effect of Morphology/Structure on the Phase Behavior and Nonlinear Rheological Properties of NR/SBR Blends Yang, Li Shi, Xuanyu Sun, Shihao Zhong, Jun Yu, Xiaofeng Wang, Danling Song, Yihu Zuo, Min Zheng, Qiang Gels Article The evolution of the morphology/structure and the nonlinear viscoelasticity of rubber blends under large amounts of strain are key scientific issues for the design and manufacture of rubber blends. The rheological responses of natural rubber/styrene-butadiene rubber (NR/SBR) blends are traced over a wide range of blend compositions to gain an insight into the effect of blend morphology on their nonlinear viscoelasticity. We also prepare NR + SBR physical blends without melt mixing to distinguish the contributions of composition and blend morphology to the viscoelastic response. The microscopic heterogeneous gel-like structure of NR/SBR blends may remarkably weaken their strain softening and improve their modulus hysteretic recovery under large strain, which may be attributed to the heterogeneous microscopic deformation for the NR and SBR phases. Furthermore, additional elastic contribution resulted from the increasing interfacial energy of domain deformation. This may provide some new insights into the effect of blend morphology on the Payne effect of rubber blends. MDPI 2022-07-07 /pmc/articles/PMC9320496/ /pubmed/35877510 http://dx.doi.org/10.3390/gels8070425 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Li
Shi, Xuanyu
Sun, Shihao
Zhong, Jun
Yu, Xiaofeng
Wang, Danling
Song, Yihu
Zuo, Min
Zheng, Qiang
Effect of Morphology/Structure on the Phase Behavior and Nonlinear Rheological Properties of NR/SBR Blends
title Effect of Morphology/Structure on the Phase Behavior and Nonlinear Rheological Properties of NR/SBR Blends
title_full Effect of Morphology/Structure on the Phase Behavior and Nonlinear Rheological Properties of NR/SBR Blends
title_fullStr Effect of Morphology/Structure on the Phase Behavior and Nonlinear Rheological Properties of NR/SBR Blends
title_full_unstemmed Effect of Morphology/Structure on the Phase Behavior and Nonlinear Rheological Properties of NR/SBR Blends
title_short Effect of Morphology/Structure on the Phase Behavior and Nonlinear Rheological Properties of NR/SBR Blends
title_sort effect of morphology/structure on the phase behavior and nonlinear rheological properties of nr/sbr blends
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9320496/
https://www.ncbi.nlm.nih.gov/pubmed/35877510
http://dx.doi.org/10.3390/gels8070425
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