[1]李志刚,李聪,蔡敏东.接枝杜仲胶对干法橡胶沥青混合料的改性机理与效果[J].东南大学学报(自然科学版),2014,44(4):845-848.[doi:10.3969/j.issn.1001-0505.2014.04.029]
 Li Zhigang,Li Cong,Cai Mindong.Modification mechanism and effect of grafted eucommia ulmoides gum on dry-process rubber bitumen mixture[J].Journal of Southeast University (Natural Science Edition),2014,44(4):845-848.[doi:10.3969/j.issn.1001-0505.2014.04.029]
点击复制

接枝杜仲胶对干法橡胶沥青混合料的改性机理与效果()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
44
期数:
2014年第4期
页码:
845-848
栏目:
交通运输工程
出版日期:
2014-07-16

文章信息/Info

Title:
Modification mechanism and effect of grafted eucommia ulmoides gum on dry-process rubber bitumen mixture
作者:
李志刚1李聪1蔡敏东2
1解放军理工大学野战工程学院, 南京210007; 2南京耀鹏交通科技有限公司, 南京210007
Author(s):
Li Zhigang1 Li Cong1 Cai Mindong2
1College of Field Engineering, PLA University of Science and Technology, Nanjing 210007, China
2Nanjing Yao Peng Traffic Technology Co., LTD, Nanjing 210007, China
关键词:
杜仲胶 硫化与接枝 橡胶沥青 干法橡胶沥青混合料 改性机理
Keywords:
eucommia ulmoides gum vulcanization and grafting rubber bitumen dry-process rubber bitumen mixture modification mechanism
分类号:
U217.3
DOI:
10.3969/j.issn.1001-0505.2014.04.029
摘要:
利用国内特有天然橡胶——杜仲胶来建立橡胶粉与沥青之间的化学链接.首先通过橡胶粉干拌杜仲胶后的微观分析和宏观表象,发现杜仲胶的双键结构可以与橡胶粉的硫交联硫化;并将杜仲胶接枝于沥青氨基反应的马来酸酐,在杜仲胶与沥青之间产生化学链接.然后通过对橡胶沥青微观和路用性能,以及干法橡胶沥青混合料高低温、水稳性及力学性能进行试验,研究了杜仲胶、国外进口橡胶反应剂的改性效果.试验结果表明:杜仲胶可以促进橡胶粉的硫化,但没有建立硫化橡胶粉和沥青反应的网络,橡胶沥青混合料性能提高不明显;杜仲胶接枝马来酸酐后,建立了硫化橡胶粉与沥青的反应网络,橡胶沥青混合料性能提高明显,改性效果达到国外产品的水平.因此,杜仲胶只有通过接枝,才能真正达到使橡胶粉与沥青产生化学反应的目的,而这正是干法橡胶沥青混合料的根本.
Abstract:
Domestic natural rubber, the eucommia ulmoides gum(EUG), was used to create chemical links between rubber crumb and asphalt. After rubber crumb was mixed with EUG, it was found that by the microscopic analysis and macroscopic representation of mixture, EUG owns double bond structure which could be vulcanized with the sulfur of rubber crumb. EUG was grafted with maleic anhydride(MA)reacting with the asphalt amino-group, and thus chemical links were built between the EUG and asphalt. Then the modification effect of grafted eucommia ulmoides gum, EUG and imports was experimented by the microscopic and performance test of rubber bitumen, the high and low temperature performance, water stability and mechanical property of dry-process rubber bitumen mixture. Test results show that EUG can contribute to the vulcanization of rubber crumb, but it cannot create the reaction network between the vulcanized rubber crumb and asphalt,so the rubber asphalt mixture performance improvement is not obvious. EUG grafted with MA establishes the response network of vulcanized rubber crumb and asphalt, so the rubber asphalt mixture performance improvement is obvious, and the modification effect can reach the level of foreign products. Therefore, EUG can only achieve chemical reaction between rubber powder and asphalt through grafting, which is the fundament of the dry rubber asphalt mixture.

参考文献/References:

[1] 孙大权,金福根,徐晓亮,等.橡胶沥青路面湿法和干法技术研究进展[J].石油沥青,2008,22(6):1-5.
  Sun Daquan,Jin Fugen,Xu Xiaoliang,et al. Research progress of wet process and dry process for asphalt rubber pavement[J]. Petroleum Asphalt, 2008,22(6):1-5.(in Chinese)
[2] Hong Wei, Li Qingshan, Lü Zhenzhen,et al. Preparation and properties of anion rubber-modified asphalt[C]//2011 International Conference on Materials for Renewable Energy & Environment. Shanghai,China, 2011: 932-935.
[3] 何亮,黄晓明,马育,等. 橡胶改性沥青储存稳定性试验研究[J].东南大学学报:自然科学版,2011,41(5):1086-1091.
  He Liang,Huang Xiaoming,Ma Yu,et al. Experimental study on storage stability of crumb rubber modified asphalt[J].Journal of Southeast University:Natural Science Edition, 2011,41(5): 1086-1091.(in Chinese)
[4] Makiko Otake, Hideo Takeichi, Teruhikl Maruyama.Development of asphalt rubber pavements in Japan[C]//3rd China-Japan Workshop on Pavement Technologies.Nanjing,China,2005:60-68.
[5] Akisetty Chandra K, Lee Soon-Jae, Amirkhanian Serji N. High temperature properties of rubberized binders containing warm asphalt additives[J]. Construction and Building Materials, 2009,23(1):565-573.
[6] Bernard J Burns. The use of VESTENAMER~(R)trans-polyoctenamer(TOR)and ground tire rubber(GTR)in high temperature asphalt applications[C]//The 166th Meeting of the Rubber Division. Columbus, USA:American Chemical Society, 2004:1-13.
[7] 肖鹏,陈洋洋,吴帮伟. TOR橡胶沥青性能试验研究[J].扬州大学学报:自然科学版,2010,23(4):71-74.
  Xiao Peng, Chen Yangyang, Wu Bangwei. Experimental research on performance of TOR asphalt rubber[J].Journal of Yangzhou University:Natural Science Edition, 2010,23(4):71-74.(in Chinese)
[8] Li Zhigang, Zhao Yue. Research on perfomnance fo vulaniezde eucommia ulmoides gum blengding with asphalt[C]//Advanced Material Research. Guangzhou,China, 2012:1652-1656.
[9] 房建宏. 硫化杜仲胶改性沥青在西部高寒地区的应用探讨[J]. 公路工程, 2012, 37(4):40-43.
  Fang Jianhong. Research on vulcanized eucommia ulmoides gum blending with asphalt applied on west zone of high-altitude and chilliness[J].Highway Engineering, 2012,37(4):40-43.(in Chinese)
[10] 李志刚,卓义金,旷鹏.接枝杜仲胶改性沥青路用性能[J].东南大学学报:自然科学版,2009,39(6):1222-1225.
  Li Zhigang,Zhuo Yijin,Kuang Peng. Research on performance of asphalt modified by grafting eucommia ulmoides gum[J].Journal of Southeast University:Natural Science Edition, 2009,39(6):1222-1225.(in Chinese)

备注/Memo

备注/Memo:
收稿日期: 2013-12-06.
作者简介: 李志刚(1972—),男,博士,副教授,seulzg@139.com.
基金项目: 国家自然科学基金资助项目(51178459).
引用本文: 李志刚,李聪,蔡敏东.接枝杜仲胶对干法橡胶沥青混合料的改性机理与效果[J].东南大学学报:自然科学版,2014,44(4):845-848. [doi:10.3969/j.issn.1001-0505.2014.04.029]
更新日期/Last Update: 2014-07-20