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纳米有机坡缕石对星形SBS改性沥青性能的协同效应

Synergy Effect of Nano-Organic Palygorskite on the Properties of Star-Shaped SBS-Modified Asphalt.

作者信息

Liu Shuai, Gao Yuchao, Jin Jiao, Chen Huiwen, Liu Xinyu, Liu Ruohua, Guan Qingjun, Wu Yinrui, Long Huaqiang, Qian Guoping

机构信息

School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha 410114, China.

School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China.

出版信息

Polymers (Basel). 2021 Mar 11;13(6):863. doi: 10.3390/polym13060863.

DOI:10.3390/polym13060863
PMID:33799695
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7999607/
Abstract

With the rapid development of economic construction, styrene-butadiene-styrene (SBS)-modified asphalt is being more and more widely used in highway engineering, but there are still many deficiencies in the process of its use. In order to further improve its performance for use, nano-organic palygorskite (A-Pal) and star-shaped SBS were compounded to obtain modified asphalt in this study. The high-temperature stability of SBS-modified asphalt was enhanced after incorporation with A-Pal for the high-temperature stability test by a dynamic shear rheometer. The A-Pal should improve the surface free energy and adhesion of SBS-modified asphalt by the water stability test analysis. The aging test shows that A-Pal can reduce the thermal oxygen decomposition of SBS and improve the anti-aging performance and the fatigue resistance of SBS-modified asphalt. A-Pal has a certain improvement effect on the low temperature performance of SBS-modified asphalt as shown by a low temperature crack resistance test. A-Pal-compounded SBS-modified asphalt features good storage stability in normal temperatures with the lowest critical compatibility temperature.

摘要

随着经济建设的快速发展，苯乙烯-丁二烯-苯乙烯（SBS）改性沥青在公路工程中的应用越来越广泛，但在其使用过程中仍存在许多不足。为了进一步提高其使用性能，本研究将纳米有机坡缕石（A-Pal）与星型SBS复合制备改性沥青。通过动态剪切流变仪进行高温稳定性试验，结果表明，加入A-Pal后，SBS改性沥青的高温稳定性得到增强。通过水稳定性试验分析可知，A-Pal可提高SBS改性沥青的表面自由能和粘附性。老化试验表明，A-Pal可减少SBS的热氧分解，提高SBS改性沥青的抗老化性能和抗疲劳性能。低温抗裂试验表明，A-Pal对SBS改性沥青的低温性能有一定的改善作用。A-Pal复合SBS改性沥青在常温下具有良好的储存稳定性，临界相容温度最低。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/551cc986050c/polymers-13-00863-g008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/d62a336e2a30/polymers-13-00863-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/523a475c2291/polymers-13-00863-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/af0c4ba59c1e/polymers-13-00863-g007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/617cdcb72fdc/polymers-13-00863-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/8461a0db0828/polymers-13-00863-g002.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/75bc74b9e525/polymers-13-00863-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/d62a336e2a30/polymers-13-00863-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/523a475c2291/polymers-13-00863-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/af0c4ba59c1e/polymers-13-00863-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/da56/7999607/551cc986050c/polymers-13-00863-g008.jpg

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本文引用的文献

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