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....

Descripción completa

Detalles Bibliográficos
Autores principales: Kim, Donghyuk, Ahn, Byungkyu, Kim, Kihyun, Lee, JongYeop, Kim, Il Jin, Kim, Wonho
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