Study on the effect of soft segment length on the performance of polyether-based polyurethane modified asphalt

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC ACS Applied Electronic Materials Pub Date : 2024-02-02 DOI:10.1016/j.ijadhadh.2024.103642

Hao Liu , Zengping Zhang , Suyu Zhang , Pengtao Chang , Yuzi Liang , Zhaofei Wang , Xiaoyi Ban , Yinxiao Guo , Xiaosong Liu

{"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":3,"journal":{"name":"ACS Applied Electronic Materials","volume":"130 ","pages":"Article 103642"},"PeriodicalIF":4.3000,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Electronic Materials","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":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

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.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

研究软段长度对聚醚基聚氨酯改性沥青性能的影响

聚氨酯软段的分子结构对聚氨酯改性沥青（PUMA）的性能有重要影响。为了研究软段长度对聚氨酯改性沥青性能的影响，我们选择了三种不同摩尔质量的聚四亚甲基醚二醇（PTMEG），合成了三种不同软段长度的聚氨酯预聚物（PUP）。因此，用这些 PUP 对沥青进行改性可得到三种 PUMA。研究表明，PUP 的初始分解温度随着软段长度的增加而升高，并最终高于基质沥青。随着软段长度的增加，PUMA 的高温和低温性能都有所提高。然而，随着软段长度的增加，改性剂在沥青中的分散性变差。这应归因于 PUP 与沥青分子之间的相互作用以及软段的结晶。这项研究为 PUMA 材料的选择提供了很好的参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊