|本期目录/Table of Contents|

[1]温丽瑗,张战军,林海,等.基于正交试验的废轮胎胶粉改性沥青微观特性研究[J].合成橡胶工业,2022,4:294-298.
 WEN Li-yuan,ZHANG Zhan-jun,LIN Hai,et al.Study on microcosmic properties of waste tire rubber powdermodified asphalt based on orthogonal test[J].China synthetic rubber industy,2022,4:294-298.
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基于正交试验的废轮胎胶粉改性沥青微观特性研究(PDF)

《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:
2022年4期
页码:
294-298
栏目:
出版日期:
2022-07-15

文章信息/Info

Title:
Study on microcosmic properties of waste tire rubber powdermodified asphalt based on orthogonal test
文章编号:
1000-1255(2022)04-0294-05
作者:
温丽瑗张战军林海黄港竣柯海陈小平
1.广东石油化工学院 化学工程学院,广东 茂名 525000;2.广东省石油化工污染过程与控制重点实验室, 广东 茂名 525000;3.中华人民共和国湛江海关,广东 湛江 524022;4.广东省公路管理局 茂名沥青储运中心,广东 茂名 525000
Author(s):
WEN Li-yuan ZHANG Zhan-jun LIN Hai HUANG Gang-jun KE Hai CHEN Xiao-ping
1. College of Chemical Engineering, Guangdong University of Petrochemical Technology, Maoming 525000,China; 2. Guangdong Provincial Key Laboratory of Petrochemical Pollution Process and Control, Maoming 525000, China; 3. Zhanjiang Customs District P.R. China, Zhanjiang 524022, China; 4. Maoming Asphalt Storage and Transportation Center, Guangdong Highway Administration, Maoming 525000, China
关键词:
改性沥青废轮胎胶粉正交试验红外光谱四组分分析热稳定性
Keywords:
modified asphalt waste tire rubber powder orthogonal test infrared spectrum four component analysis thermal stability
分类号:
U 414
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2022.04.0294
文献标识码:
A
摘要:
通过4水平4因素正交试验设计方案制备了废轮胎胶粉改性沥青,并对最优组合胶粉改性沥青进行了薄膜烘箱老化试验。通过对沥青基础指标的测试及傅里叶变换红外光谱、四组分及热重的分析,从宏观角度评价了不同沥青的性能变化,微观角度分析了胶粉改性沥青的化学组分及变化规律。研究结果表明,胶粉改性沥青的最优配比组合为胶粉掺量17%(质量分数,下同)、搅拌温度180 ℃、改性剂质量配比1/6和增塑剂掺量4%。用胶粉改性后沥青的红外光谱特征吸收峰的形状及位置未变,但强度发生变化;使化学组分的含量产生了变化,饱和分和芳香分减少、胶质和沥青质增加。胶粉的掺入降低了沥青的热降解速率,提高了初始降解温度及最终残留物含量,改善了沥青的热稳定性。
Abstract:
Modified asphalt with waste tire rubber powder was prepared by using orthogonal experimental design of four levels and four factors. Aging test of film oven was carried out with the optimized combination of rubber powder modified asphalt.The performance changes of different asphalts were evaluated from macroscopic point of view, and chemical components and revolution of rubber modified asphalt were analyzed from microscopic point of view by three major indicators of asphalt, infrared spectroscopy, four component analysis and differential thermal test. The results showed that the optimal ratio of modified asphalt was 17% (mass fraction, the same below) of rubber powder amount ,180 ℃of mixing temperature, 1/6 of modifier mass ratio and 4% of plasticizer amount. The shape and position of the characteristic infrared absorption peak of asphalt modified with rubber powder remained unchanged, but intensity changed. Meanwhile, the content of chemical components was changed. The components of saturated and aromatic decreased, but resin and asphaltene components increased. The addition of rubber powder reduced degradation rate of the asphalt, increased initial degradation temperature and final residue content, and improved thermal stability of the asphalt.

参考文献/References

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备注/Memo

备注/Memo:
广东省应用型科技研发专项(2019018013)
更新日期/Last Update: 2022-07-15