Cargando…
The Crystallisation, Microphase Separation and Mechanical Properties of the Mixture of Ether-Based TPU with Different Ester-Based TPUs
The difference in compatibility at the molecular level can lead to a change of microphase separation structure of thermoplastic polyurethanes blend systems, which will improve their thermal and mechanical properties. In this study, TDI-polyester based TPU was blended with MDI-polyether-based TPU and...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8538422/ https://www.ncbi.nlm.nih.gov/pubmed/34685234 http://dx.doi.org/10.3390/polym13203475 |
_version_ | 1784588502574301184 |
---|---|
author | Que, Yu-Hui Shi, Ying Liu, Li-Zhi Wang, Yuan-Xia Wang, Chen-Chen Zhang, Hai-Chao Han, Xu-Yang |
author_facet | Que, Yu-Hui Shi, Ying Liu, Li-Zhi Wang, Yuan-Xia Wang, Chen-Chen Zhang, Hai-Chao Han, Xu-Yang |
author_sort | Que, Yu-Hui |
collection | PubMed |
description | The difference in compatibility at the molecular level can lead to a change of microphase separation structure of thermoplastic polyurethanes blend systems, which will improve their thermal and mechanical properties. In this study, TDI-polyester based TPU was blended with MDI-polyether-based TPU and MDI-polyester based TPU, with different ratios. In the blend system, the obvious reduction of the melting temperature of the high-temperature TDI-polyester based TPU component indicates its hard segments can be mutually integrated with the other component. For TDI-polyester based TPU/MDI-polyether based TPU blends, their similar hard segment ratio and similar chemical structure of the soft segment give the molecular chains of the two components better compatibility. The aggregation structure of the two kinds of chains can rearrange at the molecular level which makes the hard domains mutually integrate to form a new phase separation structure with larger phase region distance. As a result, the yield strength of this blend increased by almost 143% when the elongation at break was only reduced by 12%. In contrast, the other group of blends still partly maintain their respective micro domains, forming a weak interface and leading to a decreased of elongation at break. |
format | Online Article Text |
id | pubmed-8538422 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85384222021-10-24 The Crystallisation, Microphase Separation and Mechanical Properties of the Mixture of Ether-Based TPU with Different Ester-Based TPUs Que, Yu-Hui Shi, Ying Liu, Li-Zhi Wang, Yuan-Xia Wang, Chen-Chen Zhang, Hai-Chao Han, Xu-Yang Polymers (Basel) Article The difference in compatibility at the molecular level can lead to a change of microphase separation structure of thermoplastic polyurethanes blend systems, which will improve their thermal and mechanical properties. In this study, TDI-polyester based TPU was blended with MDI-polyether-based TPU and MDI-polyester based TPU, with different ratios. In the blend system, the obvious reduction of the melting temperature of the high-temperature TDI-polyester based TPU component indicates its hard segments can be mutually integrated with the other component. For TDI-polyester based TPU/MDI-polyether based TPU blends, their similar hard segment ratio and similar chemical structure of the soft segment give the molecular chains of the two components better compatibility. The aggregation structure of the two kinds of chains can rearrange at the molecular level which makes the hard domains mutually integrate to form a new phase separation structure with larger phase region distance. As a result, the yield strength of this blend increased by almost 143% when the elongation at break was only reduced by 12%. In contrast, the other group of blends still partly maintain their respective micro domains, forming a weak interface and leading to a decreased of elongation at break. MDPI 2021-10-10 /pmc/articles/PMC8538422/ /pubmed/34685234 http://dx.doi.org/10.3390/polym13203475 Text en © 2021 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 Que, Yu-Hui Shi, Ying Liu, Li-Zhi Wang, Yuan-Xia Wang, Chen-Chen Zhang, Hai-Chao Han, Xu-Yang The Crystallisation, Microphase Separation and Mechanical Properties of the Mixture of Ether-Based TPU with Different Ester-Based TPUs |
title | The Crystallisation, Microphase Separation and Mechanical Properties of the Mixture of Ether-Based TPU with Different Ester-Based TPUs |
title_full | The Crystallisation, Microphase Separation and Mechanical Properties of the Mixture of Ether-Based TPU with Different Ester-Based TPUs |
title_fullStr | The Crystallisation, Microphase Separation and Mechanical Properties of the Mixture of Ether-Based TPU with Different Ester-Based TPUs |
title_full_unstemmed | The Crystallisation, Microphase Separation and Mechanical Properties of the Mixture of Ether-Based TPU with Different Ester-Based TPUs |
title_short | The Crystallisation, Microphase Separation and Mechanical Properties of the Mixture of Ether-Based TPU with Different Ester-Based TPUs |
title_sort | crystallisation, microphase separation and mechanical properties of the mixture of ether-based tpu with different ester-based tpus |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8538422/ https://www.ncbi.nlm.nih.gov/pubmed/34685234 http://dx.doi.org/10.3390/polym13203475 |
work_keys_str_mv | AT queyuhui thecrystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT shiying thecrystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT liulizhi thecrystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT wangyuanxia thecrystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT wangchenchen thecrystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT zhanghaichao thecrystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT hanxuyang thecrystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT queyuhui crystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT shiying crystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT liulizhi crystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT wangyuanxia crystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT wangchenchen crystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT zhanghaichao crystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus AT hanxuyang crystallisationmicrophaseseparationandmechanicalpropertiesofthemixtureofetherbasedtpuwithdifferentesterbasedtpus |