Cargando…
Effects of Molecular Weight of Functionalized Liquid Butadiene Rubber as a Processing Aid on the Properties of SSBR/Silica Compounds
Liquid butadiene rubber (LqBR) which used as a processing aid play a vital role in the manufacturing of high-performance tire tread compounds. However, the studies on the effect of molecular weight, microstructure, and functionalization of LqBR on the properties of compounds are still insufficient....
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7998820/ https://www.ncbi.nlm.nih.gov/pubmed/33801957 http://dx.doi.org/10.3390/polym13060850 |
_version_ | 1783670640164732928 |
---|---|
author | Kim, Donghyuk Ahn, Byungkyu Kim, Kihyun Lee, JongYeop Kim, Il Jin Kim, Wonho |
author_facet | Kim, Donghyuk Ahn, Byungkyu Kim, Kihyun Lee, JongYeop Kim, Il Jin Kim, Wonho |
author_sort | Kim, Donghyuk |
collection | PubMed |
description | Liquid butadiene rubber (LqBR) which used as a processing aid play a vital role in the manufacturing of high-performance tire tread compounds. However, the studies on the effect of molecular weight, microstructure, and functionalization of LqBR on the properties of compounds are still insufficient. In this study, non-functionalized and center-functionalized liquid butadiene rubbers (N-LqBR and C-LqBR modified with ethoxysilyl group, respectively) were synthesized with low vinyl content and different molecular weights using anionic polymerization. In addition, LqBR was added to the silica-filled SSBR compounds as an alternative to treated distillate aromatic extract (TDAE) oil, and the effect of molecular weight and functionalization on the properties of the silica-filled SSBR compound was examined. C-LqBR showed a low Payne effect and Mooney viscosity because of improved silica dispersion due to the ethoxysilyl functional group. Furthermore, C-LqBR showed an increased crosslink density, improved mechanical properties, and reduced organic matter extraction compared to the N-LqBR compound. LqBR reduced the glass transition temperature (T(g)) of the compound significantly, thereby improving snow traction and abrasion resistance compared to TDAE oil. Furthermore, the energy loss characteristics revealed that the hysteresis loss attributable to the free chain ends of LqBR was dominant. |
format | Online Article Text |
id | pubmed-7998820 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-79988202021-03-28 Effects of Molecular Weight of Functionalized Liquid Butadiene Rubber as a Processing Aid on the Properties of SSBR/Silica Compounds Kim, Donghyuk Ahn, Byungkyu Kim, Kihyun Lee, JongYeop Kim, Il Jin Kim, Wonho Polymers (Basel) Article Liquid butadiene rubber (LqBR) which used as a processing aid play a vital role in the manufacturing of high-performance tire tread compounds. However, the studies on the effect of molecular weight, microstructure, and functionalization of LqBR on the properties of compounds are still insufficient. In this study, non-functionalized and center-functionalized liquid butadiene rubbers (N-LqBR and C-LqBR modified with ethoxysilyl group, respectively) were synthesized with low vinyl content and different molecular weights using anionic polymerization. In addition, LqBR was added to the silica-filled SSBR compounds as an alternative to treated distillate aromatic extract (TDAE) oil, and the effect of molecular weight and functionalization on the properties of the silica-filled SSBR compound was examined. C-LqBR showed a low Payne effect and Mooney viscosity because of improved silica dispersion due to the ethoxysilyl functional group. Furthermore, C-LqBR showed an increased crosslink density, improved mechanical properties, and reduced organic matter extraction compared to the N-LqBR compound. LqBR reduced the glass transition temperature (T(g)) of the compound significantly, thereby improving snow traction and abrasion resistance compared to TDAE oil. Furthermore, the energy loss characteristics revealed that the hysteresis loss attributable to the free chain ends of LqBR was dominant. MDPI 2021-03-10 /pmc/articles/PMC7998820/ /pubmed/33801957 http://dx.doi.org/10.3390/polym13060850 Text en © 2021 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kim, Donghyuk Ahn, Byungkyu Kim, Kihyun Lee, JongYeop Kim, Il Jin Kim, Wonho Effects of Molecular Weight of Functionalized Liquid Butadiene Rubber as a Processing Aid on the Properties of SSBR/Silica Compounds |
title | Effects of Molecular Weight of Functionalized Liquid Butadiene Rubber as a Processing Aid on the Properties of SSBR/Silica Compounds |
title_full | Effects of Molecular Weight of Functionalized Liquid Butadiene Rubber as a Processing Aid on the Properties of SSBR/Silica Compounds |
title_fullStr | Effects of Molecular Weight of Functionalized Liquid Butadiene Rubber as a Processing Aid on the Properties of SSBR/Silica Compounds |
title_full_unstemmed | Effects of Molecular Weight of Functionalized Liquid Butadiene Rubber as a Processing Aid on the Properties of SSBR/Silica Compounds |
title_short | Effects of Molecular Weight of Functionalized Liquid Butadiene Rubber as a Processing Aid on the Properties of SSBR/Silica Compounds |
title_sort | effects of molecular weight of functionalized liquid butadiene rubber as a processing aid on the properties of ssbr/silica compounds |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7998820/ https://www.ncbi.nlm.nih.gov/pubmed/33801957 http://dx.doi.org/10.3390/polym13060850 |
work_keys_str_mv | AT kimdonghyuk effectsofmolecularweightoffunctionalizedliquidbutadienerubberasaprocessingaidonthepropertiesofssbrsilicacompounds AT ahnbyungkyu effectsofmolecularweightoffunctionalizedliquidbutadienerubberasaprocessingaidonthepropertiesofssbrsilicacompounds AT kimkihyun effectsofmolecularweightoffunctionalizedliquidbutadienerubberasaprocessingaidonthepropertiesofssbrsilicacompounds AT leejongyeop effectsofmolecularweightoffunctionalizedliquidbutadienerubberasaprocessingaidonthepropertiesofssbrsilicacompounds AT kimiljin effectsofmolecularweightoffunctionalizedliquidbutadienerubberasaprocessingaidonthepropertiesofssbrsilicacompounds AT kimwonho effectsofmolecularweightoffunctionalizedliquidbutadienerubberasaprocessingaidonthepropertiesofssbrsilicacompounds |