Hao Liu , Zengping Zhang , Suyu Zhang , Pengtao Chang , Yuzi Liang , Zhaofei Wang , Xiaoyi Ban , Yinxiao Guo , Xiaosong Liu
{"title":"研究软段长度对聚醚基聚氨酯改性沥青性能的影响","authors":"Hao Liu , Zengping Zhang , Suyu Zhang , Pengtao Chang , Yuzi Liang , Zhaofei Wang , Xiaoyi Ban , Yinxiao Guo , Xiaosong Liu","doi":"10.1016/j.ijadhadh.2024.103642","DOIUrl":null,"url":null,"abstract":"<div><p>The molecular structure of the polyurethane soft segment has significant influence on the performance of polyurethane modified asphalt (PUMA). To investigate the effect of soft segment length on the performance of PUMA, three kinds of polytetramethylene ether glycol (PTMEG) with different molar masses were selected to synthesize three polyurethane prepolymers (PUP) with various soft segment lengths. As a result, modifying asphalt with these PUPs lead to three PUMAs. Research showed that the initial decomposition temperature of the PUP rised with the increment of soft segment length and eventually above the base asphalt. The high and low temperature properties of PUMA were enhanced with increasing the soft segment length. However, the dispersion of modifier in the asphalt became worse with higher soft segment length. It should be attributed to the interaction between PUP and asphalt molecules and the crystallization of soft segments. This study provides a good reference for the selection of materials for PUMA.</p></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"130 ","pages":"Article 103642"},"PeriodicalIF":3.2000,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Study on the effect of soft segment length on the performance of polyether-based polyurethane modified asphalt\",\"authors\":\"Hao Liu , Zengping Zhang , Suyu Zhang , Pengtao Chang , Yuzi Liang , Zhaofei Wang , Xiaoyi Ban , Yinxiao Guo , Xiaosong Liu\",\"doi\":\"10.1016/j.ijadhadh.2024.103642\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The molecular structure of the polyurethane soft segment has significant influence on the performance of polyurethane modified asphalt (PUMA). To investigate the effect of soft segment length on the performance of PUMA, three kinds of polytetramethylene ether glycol (PTMEG) with different molar masses were selected to synthesize three polyurethane prepolymers (PUP) with various soft segment lengths. As a result, modifying asphalt with these PUPs lead to three PUMAs. Research showed that the initial decomposition temperature of the PUP rised with the increment of soft segment length and eventually above the base asphalt. The high and low temperature properties of PUMA were enhanced with increasing the soft segment length. However, the dispersion of modifier in the asphalt became worse with higher soft segment length. It should be attributed to the interaction between PUP and asphalt molecules and the crystallization of soft segments. This study provides a good reference for the selection of materials for PUMA.</p></div>\",\"PeriodicalId\":13732,\"journal\":{\"name\":\"International Journal of Adhesion and Adhesives\",\"volume\":\"130 \",\"pages\":\"Article 103642\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-02-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Adhesion and Adhesives\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0143749624000241\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Adhesion and Adhesives","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0143749624000241","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
Study on the effect of soft segment length on the performance of polyether-based polyurethane modified asphalt
The molecular structure of the polyurethane soft segment has significant influence on the performance of polyurethane modified asphalt (PUMA). To investigate the effect of soft segment length on the performance of PUMA, three kinds of polytetramethylene ether glycol (PTMEG) with different molar masses were selected to synthesize three polyurethane prepolymers (PUP) with various soft segment lengths. As a result, modifying asphalt with these PUPs lead to three PUMAs. Research showed that the initial decomposition temperature of the PUP rised with the increment of soft segment length and eventually above the base asphalt. The high and low temperature properties of PUMA were enhanced with increasing the soft segment length. However, the dispersion of modifier in the asphalt became worse with higher soft segment length. It should be attributed to the interaction between PUP and asphalt molecules and the crystallization of soft segments. This study provides a good reference for the selection of materials for PUMA.
期刊介绍:
The International Journal of Adhesion and Adhesives draws together the many aspects of the science and technology of adhesive materials, from fundamental research and development work to industrial applications. Subject areas covered include: interfacial interactions, surface chemistry, methods of testing, accumulation of test data on physical and mechanical properties, environmental effects, new adhesive materials, sealants, design of bonded joints, and manufacturing technology.