Low-temperature organic phase change material microcapsules for asphalt pavement: preparation, characterisation and application

被引：28
|
作者：
Li, Feng [1 ]
Zhou, Siqi [1 ]
Chen, Sai [2 ,3 ]
Yang, Jian [2 ]
Zhu, Xingyi [2 ]
Du, Yuchuan [2 ]
Yang, Zhenglong [2 ,3 ]
机构：
[1] Beihang Univ, Sch Transportat Sci & Engn, Beijing, Peoples R China
[2] Tongji Univ, Coll Transportat Engn, Minist Educ, Key Lab Rd & Traff Engn, Shanghai, Peoples R China
[3] Tongji Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Civil Engn Mat, Shanghai 201804, Peoples R China
来源：
JOURNAL OF MICROENCAPSULATION | 2018年 / 35卷 / 7-8期
基金：
中国国家自然科学基金;
关键词：
Organic phase change material; microcapsule; asphalt pavement; low-temperature disaster; polypropylene;
D O I：
10.1080/02652048.2018.1559248
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Low-temperature phase change material (PCM) is a material that stores additional heat at elevated temperatures and releases energy when the temperature is below the limit. A way to solve the low-temperature disaster of asphalt pavement is desired to be developed. In this article, a two-component organic low-temperature PCM was encapsulated by melamine-urea-formaldehyde resin and finally reinforced with polypropylene. The reinforced PCM microcapsules were mixed with 70# SBS (Styrene-Butadiene-Styrene) modified asphalt in SMA-10 (Stone Matrix Asphalt-10) to form aggregates. The results showed that after adding 6.0% (w/w) reinforced PCM microcapsules, there was a significant delay compared to a blank sample with a maximum temperature difference of 1.8 degrees C when the temperature dropped to 0 degrees C, which proved that this method has a good potential in resisting low-temperature disasters on asphalt pavement and deserves further improvement.
引用
收藏
页码：635 / 642
页数：8
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