开发与应用

PVP修饰石墨烯/SBS复合改性沥青与混合料性能研究

展开
  • 吉林大学,长春130021
王观竹(1989-),女,硕士研究生,主要研究方向为新型道路材料,E-mail:dftvgl@163.com。

收稿日期: 2021-05-19

  修回日期: 2021-09-16

  网络出版日期: 2021-12-13

基金资助

国家自然基金(517098365)

Study on performance of PVP modified graphene composite SBS modified asphalt and mixture

Expand
  • Jilin University,Changchun 130021

Received date: 2021-05-19

  Revised date: 2021-09-16

  Online published: 2021-12-13

摘要

针对传统石墨烯存在成本高、与基质沥青相容性和分散性差的问题,采用聚乙烯吡咯烷酮(PVP)对石墨烯(PVP-G)进行处理,基于针入度分级体系、PG分级体系与黏度分级体系指标评价了PVP修饰石墨烯复合苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)改性沥青混合料的常规针入度指标性能、流变特性、黏度特性,优化了适宜的PVP-G掺配比例,在此基础上,采用三大路用性能试验、浸水汉堡(APA)试验、半圆弯拉(SCB)疲劳试验与室内MMLS1/3试验,探讨了PVP-G/SBS复合改性沥青混合料的路用性能、疲劳性能与长期稳定性能。结果表明:添加PVP-G改善了SBS改性沥青的高温、低温和抗老化特性,增强了沥青胶结料的弹性恢复性能与抗变形性能,改善了低温抗断裂性能与应力释放性能。1.5% PVP-G/4.0% SBS复合改性沥青混合料有优异的高温抗永久变形性能、抗疲劳性能和抗水损害性能。在高温长期荷载及高温浸水综合作用下,1.5% PVP-G/4.0% SBS复合改性沥青混合料比5% SBS改性沥青混合料表现出了更优异的抗永久变形能力与耐久性。

本文引用格式

王观竹, 冯海满 . PVP修饰石墨烯/SBS复合改性沥青与混合料性能研究[J]. 化工新型材料, 2021 , 49(11) : 267 -273 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.11.055

Abstract

In view of the high cost of traditional graphene,poor compatibility with matrix pitch and poor dispersion,polyvinylpyrrolidone is used to treat graphene (PVP-G),based on the index of penetration classification system,PG classification system and viscosity classification system.The conventional penetration index performance,rheological characteristics and viscosity characteristics of the PVP modified graphene composite SBS modified asphalt mixture were evaluated,and the appropriate PVP-G blending ratio was optimized.On this basis,three road performances were adopted tests,water immersion APA test,SCB bending tensile fatigue test and indoor MMLS1/3 test,discussed the road performance,fatigue performance and long-term stability of PVP-G/SBS composite modified asphalt mixture.the results shown that,the addition of PVP-G improved the high temperature,low temperature and anti-aging properties of SBS modified asphalt,enhanced the elastic recovery performance and anti-deformation performance of the asphalt binder,and improved the low-temperature fracture resistance and stress release performance.1.5% PVP-G/4.0% SBS composite modified asphalt mixture had excellent high temperature resistance to permanent deformation,fatigue resistance and water damage resistance.Under the combined effects of high temperature long-term load and high temperature water immersion,1.5% PVP-G/4.0% SBS composite modified asphalt mixture exhibited better resistance to permanent deformation and durability than 5% SBS modified asphalt mixture.

参考文献

[1] 周醒,夏元梦,蔺海兰,等.纳米SiO2功能化改性石墨烯/热塑性聚氨酯复合材料的制备与性能[J].复合材料学报,2017,34(4):699-707.
[2] 白静静,尹建宇,高雄.异氰酸酯功能化氧化石墨烯/热塑性聚氨酯弹性体复合材料的制备与性能[J].复合材料学报,2018,35(7):1683-1690.
[3] 于瑞恩,祝锡晶,张茂荣,等.氧化石墨烯/聚氨酯复配改性沥青混合料的性能和机理[J].科学技术与工程,2018,18(33):209-214.
[4] 赵艳,李波,曹贵,等.基于表面能的氧化石墨烯改性沥青粘附性研究[J].建筑材料学报,2020,23(6):667-672.
[5] 刘克非,朱俊材,张雪飞,等.氧化石墨烯改性沥青性能评价及其OGFC混合料路用性能[J].长安大学学报,2020,40(1):40-47.
[6] 武红娟,王选仓,王睿,等.基于老化的石墨烯&橡胶粉复合改性沥青蠕变特性及微观结构分析[J].长安大学学报,2020,40(1):97-105.
[7] 李蓬.石墨烯改性沥青流变性能及其博格斯流变模型研究[J].重庆交通大学学报(自然科学版),2020,39(1):72-77.
[8] 谭忆秋,刘凯,王英园.碳纤维/石墨烯导电沥青混凝土的非线性伏安特性[J]建筑材料学报,2019,223(2):278-283.
[9] 张霞,黄刚,周超,等.石墨烯在沥青复合材料中的研究现状[J].中南大学学报(自然科学版),2019,50(7):1637-1644.
[10] 包得祥,曹青霞,张富奎,等.石墨烯对橡胶复合改性沥青抗老化性能的影响[J].建筑材料学报,2020,23(10):1113-1120.
[11] 赵之杰.石墨烯及LDHs改性沥青及其混合料耐老化性能研究[D].武汉:武汉理工大学,2017.
[12] 孟勇军,郭贺源,徐锐光,等.石墨烯橡胶复合改性沥青流变性能及微观性能[J]建筑材料学报,2020,23(5):1246-1250.
[13] 刘爱华,卢勇,李亚丽,等.石墨烯对橡胶改性沥青路用性能影响试验研究[J]路基工程,2021(1):68-73.
Options
文章导航

/