Thermogravimetric analysis of modified asphalt based on structure difference of styrene-butadiene-styrene block copolymer during thermal oxidation aging

Seven styrene-butadiene-styrene block copolymer (SBS) modifiers with different styrene butadiene diblock (SB) content, styrene chain content and number average molecular weight were prepared for the preparation of modified asphalt. The effect of SBS structure on the properties of modified asphalt wa...

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Autor principal:	HAN Ming-zhe, XU Zheng-shuai, CAO Lan
Formato:	article
Lenguaje:	ZH
Publicado:	Editorial Office of China Synthetic Rubber Industry 2021
Materias:	styrene-butadiene-styrene block copolymer modified asphalt thermal oxygen aging mass loss rate thermogravimetric analysis Organic chemistry QD241-441 Chemical engineering TP155-156 Chemicals: Manufacture, use, etc. TP200-248
Acceso en línea:	https://doaj.org/article/560ed003ffc9478390d085c531e5407f
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spelling	oai:doaj.org-article:560ed003ffc9478390d085c531e5407f2021-11-19T07:22:46ZThermogravimetric analysis of modified asphalt based on structure difference of styrene-butadiene-styrene block copolymer during thermal oxidation aging10.19908/j.cnki.ISSN1000-1255.2021.05.03981000-1255https://doaj.org/article/560ed003ffc9478390d085c531e5407f2021-09-01T00:00:00Zhttp://hcxjgy.paperopen.com/oa/darticle.aspx?type=view&id=202105013https://doaj.org/toc/1000-1255Seven styrene-butadiene-styrene block copolymer (SBS) modifiers with different styrene butadiene diblock (SB) content, styrene chain content and number average molecular weight were prepared for the preparation of modified asphalt. The effect of SBS structure on the properties of modified asphalt was investigated. The results showed that the thermogravimetric curves of SBS modified asphalt was similar to that of matrix asphalt. Its aging process included the transformation from light components to heavy components and the degradation and crosslinking of SBS itself. The mass loss rate and size of modified asphalt with different SBS structures were different. The modified asphalt with high number average molecular weight of SBS had good stability after long-term aging; The mass loss rate of SBS modified asphalt with high polystyrene segment content was significantly reduced after aging, and it had good thermal stability after short-term aging. SBS modified asphalt with more SB had poor aging resistance, and the mass loss rate increased significantly after aging.HAN Ming-zhe, XU Zheng-shuai, CAO LanEditorial Office of China Synthetic Rubber Industryarticlestyrene-butadiene-styrene block copolymermodified asphaltthermal oxygen agingmass loss ratethermogravimetric analysisOrganic chemistryQD241-441Chemical engineeringTP155-156Chemicals: Manufacture, use, etc.TP200-248ZHHecheng xiangjiao gongye, Vol 44, Iss 5, Pp 398-398 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	styrene-butadiene-styrene block copolymer modified asphalt thermal oxygen aging mass loss rate thermogravimetric analysis Organic chemistry QD241-441 Chemical engineering TP155-156 Chemicals: Manufacture, use, etc. TP200-248
spellingShingle	styrene-butadiene-styrene block copolymer modified asphalt thermal oxygen aging mass loss rate thermogravimetric analysis Organic chemistry QD241-441 Chemical engineering TP155-156 Chemicals: Manufacture, use, etc. TP200-248 HAN Ming-zhe, XU Zheng-shuai, CAO Lan Thermogravimetric analysis of modified asphalt based on structure difference of styrene-butadiene-styrene block copolymer during thermal oxidation aging
description	Seven styrene-butadiene-styrene block copolymer (SBS) modifiers with different styrene butadiene diblock (SB) content, styrene chain content and number average molecular weight were prepared for the preparation of modified asphalt. The effect of SBS structure on the properties of modified asphalt was investigated. The results showed that the thermogravimetric curves of SBS modified asphalt was similar to that of matrix asphalt. Its aging process included the transformation from light components to heavy components and the degradation and crosslinking of SBS itself. The mass loss rate and size of modified asphalt with different SBS structures were different. The modified asphalt with high number average molecular weight of SBS had good stability after long-term aging; The mass loss rate of SBS modified asphalt with high polystyrene segment content was significantly reduced after aging, and it had good thermal stability after short-term aging. SBS modified asphalt with more SB had poor aging resistance, and the mass loss rate increased significantly after aging.
format	article
author	HAN Ming-zhe, XU Zheng-shuai, CAO Lan
author_facet	HAN Ming-zhe, XU Zheng-shuai, CAO Lan
author_sort	HAN Ming-zhe, XU Zheng-shuai, CAO Lan
title	Thermogravimetric analysis of modified asphalt based on structure difference of styrene-butadiene-styrene block copolymer during thermal oxidation aging
title_short	Thermogravimetric analysis of modified asphalt based on structure difference of styrene-butadiene-styrene block copolymer during thermal oxidation aging
title_full	Thermogravimetric analysis of modified asphalt based on structure difference of styrene-butadiene-styrene block copolymer during thermal oxidation aging
title_fullStr	Thermogravimetric analysis of modified asphalt based on structure difference of styrene-butadiene-styrene block copolymer during thermal oxidation aging
title_full_unstemmed	Thermogravimetric analysis of modified asphalt based on structure difference of styrene-butadiene-styrene block copolymer during thermal oxidation aging
title_sort	thermogravimetric analysis of modified asphalt based on structure difference of styrene-butadiene-styrene block copolymer during thermal oxidation aging
publisher	Editorial Office of China Synthetic Rubber Industry
publishDate	2021
url	https://doaj.org/article/560ed003ffc9478390d085c531e5407f
work_keys_str_mv	AT hanmingzhexuzhengshuaicaolan thermogravimetricanalysisofmodifiedasphaltbasedonstructuredifferenceofstyrenebutadienestyreneblockcopolymerduringthermaloxidationaging
_version_	1718420311048716288

Thermogravimetric analysis of modified asphalt based on structure difference of styrene-butadiene-styrene block copolymer during thermal oxidation aging

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