以有机蒙脱土(OMMT)和环氧树脂为改性剂,采用反应性熔融共混法制备了OMMT/环氧树脂复合改性沥青.通过X射线衍射和荧光显微镜对复合改性沥青的微观结构进行了表征,对其物理力学性能、相容性和热贮存稳定性进行了考察.结果表明,当OMMT掺加量为1％ ～～2％时,OMMT以剥离结构存在于复合改性沥青中,体系中环氧树脂分布更加均匀;复合改性沥青中OMMT掺量为1％时,拉伸强度与环氧树脂改性沥青相比提高了25％;随着OMMT掺量的增加,复合改性沥青软化点逐渐升高,25℃针入度缓慢减小,针入度指数(PI)先增大后减小.
参考文献
| [1] | Meltem Cubuk;Metin Guerue;M. Kuersat Cubuk .Improvement of bitumen performance with epoxy resin[J].Fuel,2009(7):1324-1328. |
| [2] | Yu, JY;Cong, PL;Wu, SP .Laboratory Investigation of the Properties of Asphalt Modified with Epoxy Resin[J].Journal of Applied Polymer Science,2009(6):3557-3563. |
| [3] | Y. Xiao;M.F.C. van de Ven;A.A.A. Molenaar;S.P. Wu .Possibility of using epoxy modified bitumen to replace tar-containing binder for pavement antiskid surfaces[J].Construction and Building Materials,2013(Nov.):59-66. |
| [4] | Guo BC;Ha DM;Cai CG .Effects of organo-montmorillonite dispersion on thermal stability of epoxy resin nanocomposites[J].European Polymer Journal,2004(8):1743-1748. |
| [5] | 余剑英,曾旋,汪林,吴少鹏,高涛.有机化累托石对沥青动态流变性能的影响[J].高分子材料科学与工程,2007(05):190-193. |
| [6] | 肖新颜,杨泽清.有机蒙脱土/废胶粉复合改性沥青的性能[J].华南理工大学学报（自然科学版）,2013(06):116-120. |
| [7] | Fang, C.;Yu, R.;Li, Y.;Hu, J.;Zhang, M. .Preparation and characterization of an asphalt-modifying agent with waste packaging polyethylene and organic montmorillonite[J].Polymer Testing,2013(5):953-960. |
| [8] | Rheological properties and storage stability of bitumen/SBS/montmorillonite composites[J].Construction and Building Materials,2010(3):300. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%