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材料导报  2022, Vol. 36 Issue (13): 21020130-6    https://doi.org/10.11896/cldb.21020130
  高分子与聚合物基复合材料 |
沥青路面界面聚合微胶囊的制备和性能
姚秉辰1, 纪小平1,*, 汤振农2, 胡永林3, 司柏通4
1 长安大学公路学院,西安 710064
2 金华市公路与运输管理中心,浙江 金华 321013
3 金华市金东区公路管理段,浙江 金华 321014
4 深圳市政设计研究院有限公司,广东 深圳 518029
Preparation and Performance of Interfacial Polymerization Microcapsules for Asphalt Pavement
YAO Bingchen1, JI Xiaoping1,*, TANG Zhennong2, HU Yonglin3, SI Botong4
1 School of Highway, Chang'an University, Xi'an 710064, China
2 Jinhua Highway and Transportation Management Center, Jinhua 321013, Zhejiang, China
3 Jindong District Highway Management Section of Jinhua, Jinhua 321014, Zhejiang, China
4 Shenzhen Municipal Design & Research Institute Co., Ltd., Shenzhen 518029, Guangdong, China
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摘要 为提高沥青胶浆的自愈性能,以沥青再生剂为囊芯材料、异佛尔酮二异氰酸酯和蒸馏水分别为油相和水相囊壁材料反应单体,采用界面聚合法制备了聚脲囊壁材料包裹沥青再生剂的微米级损伤自愈路用微胶囊,并利用扫描电镜(SEM)、红外光谱(FTIR)、激光粒度仪和热重分析仪(TGA)分别从微观形貌、粒径、壁厚、化学结构及热稳定性等方面评价了路用微胶囊的技术性能。基于小梁弯拉愈合试验,系统研究了微胶囊掺量、愈合时间、愈合温度和粉胶比对微胶囊沥青胶浆自愈性能的影响。结果表明,制备的路用微胶囊表面光滑平整,粒径分布均匀,囊壁完整,化学结构稳定,热稳定性良好;微胶囊沥青胶浆的自愈性能随微胶囊掺量的增大先上升后下降,随愈合时间的延长先上升后趋于稳定,随愈合温度的升高先上升后趋于稳定,随粉胶比的增大而降低。
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姚秉辰
纪小平
汤振农
胡永林
司柏通
关键词:  自愈性能  沥青胶浆  路用微胶囊  界面聚合    
Abstract: In order to improve the self-healing performacne of asphalt mortar, the asphalt regenerant was used as the core material. Isophorone diisocyanate (IPDI) and distilled water were used as the reaction monomers of the oil and water phases, respectively. Micro-scale damage self-healing microcapsule for asphalt regeneration agent coated with polyurea wall material was prepared by interfacial polymerization. The technical properties of microcapsules for road were evaluated from the aspects of microscopic morphology, particle size, wall thickness, chemical structure and thermal stability by scanning electron microscopy (SEM), infrared spectroscopy (FTIR), laser particle size analyzer and thermal gravimetric analyzer (TGA). Based on the beam bending healing test, the effects of microcapsule content, healing time, healing temperature and powder-binder ratio on the self-healing performance of micro encapsulated asphalt mortar were systematically studied. The results show that the prepared microcapsules for road have smooth and flat surface, uniform particle size distribution, intact capsule wall, stable chemical structure and good thermal stability. The self-healing performance of microencapsulated asphalt mortar firstly increases and then decreases with the increase of microcapsule content,firstly increases and then tends to be stable with the extension of healing time, firstly increases and then tends to be stable with the increase of healing temperature, and decreases with the increase of powder-binder ratio.
Key words:  self-healing performance    asphalt mortar    microcapsule for road    interfacial polymerization
出版日期:  2022-07-10      发布日期:  2022-07-12
ZTFLH:  U414  
基金资助: 浙江省公路与运输管理中心科技计划项目(2020H08)
通讯作者:  * jixp@chd.edu.cn   
作者简介:  姚秉辰,2019年6月毕业于辽宁工程技术大学道路桥梁与渡河工程专业,获工学学士学位,自2019年9月至今在长安大学攻读硕士学位,主要从事路用微胶囊的研究。
纪小平,工学博士,长安大学公路学院教授、博士研究生导师。2005年毕业于长安大学公路与城市铁道工程专业,获工学学士学位;2008年毕业于长安大学材料学专业,获工学硕士学位;2011年毕业于长安大学道路与铁道工程专业,获工学博士学位。重点研究方向为路面固体废弃物回收利用、路面材料自修复、路面压电能量转化理论与利用技术、环保型路面材料等。主持或作为骨干成员参与科技项目10余项,发表论文40余篇,其中SCI/EI检索20余篇,授权国家发明专利10余项。
引用本文:    
姚秉辰, 纪小平, 汤振农, 胡永林, 司柏通. 沥青路面界面聚合微胶囊的制备和性能[J]. 材料导报, 2022, 36(13): 21020130-6.
YAO Bingchen, JI Xiaoping, TANG Zhennong, HU Yonglin, SI Botong. Preparation and Performance of Interfacial Polymerization Microcapsules for Asphalt Pavement. Materials Reports, 2022, 36(13): 21020130-6.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.21020130  或          http://www.mater-rep.com/CN/Y2022/V36/I13/21020130
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