响应面法优化制备LDHs-CRMA复合改性沥青及其表征——(<sup>1</sup> 新疆大学化学化工学院，石油天然气精细化工教育部重点实验室，新疆 乌鲁木齐 830046; <sup>2</sup> 新疆北新四方工程检测咨询有限公司，新疆 乌鲁木齐 830018)

鲁玉莹; 余黎明; 杨加可; 曾武松; 陆江银

doi:10.11949/0438-1157.20190856

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响应面法优化制备LDHs-CRMA复合改性沥青及其表征——(¹ 新疆大学化学化工学院，石油天然气精细化工教育部重点实验室，新疆乌鲁木齐 830046; ² 新疆北新四方工程检测咨询有限公司，新疆乌鲁木齐 830018)

材料化学工程与纳米技术 | 更新时间：2020-06-24

- 响应面法优化制备LDHs-CRMA复合改性沥青及其表征——(¹ 新疆大学化学化工学院，石油天然气精细化工教育部重点实验室，新疆乌鲁木齐 830046; ² 新疆北新四方工程检测咨询有限公司，新疆乌鲁木齐 830018)
- Preparation of LDHs-CRMA composite modified asphalt by response surface methodology and its characterization
- 化工学报 2020年71卷第3期页码：1362-1369
- 作者机构：
  
  1.新疆大学化学化工学院，石油天然气精细化工教育部重点实验室，新疆乌鲁木齐 830046
  2.新疆北新四方工程检测咨询有限公司，新疆乌鲁木齐 830018
- 作者简介：
  
  鲁玉莹（1995—）,女，硕士研究生，luyuying0301@163.com
  陆江银（1964—），男，博士，教授，jiangyinlu6410@163.com
- 基金信息：
  
  国家自然科学基金项目(21968034);兵团十一师师域科技计划项目(2018BB027)
- DOI：10.11949/0438-1157.20190856
  中图分类号： TU 535;U 414
- 收稿：2019-07-25，
  
  修回：2020-01-06，
  
  纸质出版：2020-03-05
- 稿件说明：
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鲁玉莹, 余黎明, 杨加可, 曾武松, 陆江银. 响应面法优化制备LDHs-CRMA复合改性沥青及其表征[J]. 化工学报, 2020, 71(3): 1362-1369

LU Yuying， YU Liming， YANG Jiake， ZENG Wusong， LU Jiangyin. Preparation of LDHs-CRMA composite modified asphalt by response surface methodology and its characterization[J]. CIESC Journal, 2020, 71(3): 1362-1369
鲁玉莹, 余黎明, 杨加可, 曾武松, 陆江银. 响应面法优化制备LDHs-CRMA复合改性沥青及其表征[J]. 化工学报, 2020, 71(3): 1362-1369 DOI： 10.11949/0438-1157.20190856.

LU Yuying， YU Liming， YANG Jiake， ZENG Wusong， LU Jiangyin. Preparation of LDHs-CRMA composite modified asphalt by response surface methodology and its characterization[J]. CIESC Journal, 2020, 71(3): 1362-1369 DOI： 10.11949/0438-1157.20190856.

摘要

采用熔融共混法，以克拉玛依90

沥青为原料，Mg-Al水滑石(LDHs)与废橡胶粉(CR)作为改性剂，制备了具有抗紫外老化性能的水滑石/废胶粉复合改性沥青(LDHs/CRMA)，并对其软化点、针入度指数(PI)、延度进行了测试。通过Hassan数学方法将三个指标“归一化”得到总评“归一值”，采用响应面分析法建立总评“归一值”与各因素之间的Box-Behnken数学模型，得到了LDHs/CRMA的最优制备工艺条件为：剪切温度173℃、剪切时间89 min、剪切速率3500 r/min。通过紫外老化模拟实验对复合改性沥青的抗老化性能进行了评价，结果表明，引入水滑石可以减少沥青老化过程中含氧官能团的产生，抗紫外老化性能得到了明显提高。

Abstract

Mg-Al layer double hydroxides (Mg-Al LDHs) modified asphalt was prepared by melt blending with Karamay asphalt and waste crumb rubber (CR)

which has UV aging resistance. The physical properties including softening point

penetration index (PI)

ductility were tested

and the three indicators were “normalized”into overall desirability by Hassan􀆳s mathematical method. The Box-Behnken mathematical relation model between overall desirability and affecting factors was established

and the technology of preparing composing LDHs/CRMA was optimized. The optimum preparation conditions were: shear temperature 173℃

shear time 89 min

and shear rate 3500 r/min. The aging resistance of composite modified asphalt was evaluated by UV aging simulation test. The FT-IR and SEM revealed that the introduction of LDHs can reduce the production of oxygen-containing functional groups during asphalt aging

and the anti-UV aging performance was improved.

关键词

Keywords

references

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响应面法优化制备LDHs-CRMA复合改性沥青及其表征——(1 新疆大学化学化工学院，石油天然气精细化工教育部重点实验室，新疆 乌鲁木齐 830046; 2 新疆北新四方工程检测咨询有限公司，新疆 乌鲁木齐 830018)

Preparation of LDHs-CRMA composite modified asphalt by response surface methodology and its characterization

DOI：10.11949/0438-1157.20190856

摘要

Abstract

关键词

Keywords

references

响应面法优化制备LDHs-CRMA复合改性沥青及其表征——(¹ 新疆大学化学化工学院，石油天然气精细化工教育部重点实验室，新疆乌鲁木齐 830046; ² 新疆北新四方工程检测咨询有限公司，新疆乌鲁木齐 830018)