基于MOFs材料的橡胶沥青制备及其烟气抑制效果研究
Preparation of Rubber Asphalt Based on MOFs Materials and its Smoke Suppression Effect Research
王子鹏 1周南 1赵彦飞 1吕杨 2吴少鹏 2李娜 2谢君2
作者信息
- 1. 河北通华公路材料有限公司 石家庄 050000
- 2. 武汉理工大学硅酸盐国家重点实验室 武汉 430070
- 折叠
摘要
采用MOFs材料对橡胶沥青改性制备环保型橡胶沥青,分析MOFs材料与橡胶沥青的配比对环保型橡胶沥青流变性能、低温性能、以及VOCs抑制的影响,以气相色谱-质谱联用仪(GC-MS)辨别VOCs成分谱特征.结果表明:在30℃时,UiO-66掺量为0.2wt％、0.4wt％、0.6wt％时的复数模量比未掺入的分别提高17.2％、30.5％、36.6％.以0.6wt％掺量为例,在-6℃、-12℃、-18℃和-24℃时,其S值比未掺入的橡胶沥青分别提高5.12％、18.73％、7.86％、6.51％.当UiO-66掺量为0.6wt％时,VOCs数目由118种急剧减少到62种.橡胶沥青VOCs排放总浓度大幅降低48.1％,由1043.2 mg/m3降低至501.9 mg/m3.此外,UiO-66对一类致癌物的抑制效果显著,可使1,3-丁二烯的浓度降低高达71.2％,这表明UiO-66对橡胶沥青VOCs有显著的抑制作用.
Abstract
Environmental-friendly rubber asphalt was prepared by modifying rubber asphalt with MOFs material.The effects of the ratio of MOFs material and rubber asphalt on the rheological properties,low-temperature properties and VOCs inhibition of environmental-friendly rubber asphalt were ana-lyzed.The spectral characteristics of VOCs were identified by gas chromatography-mass spectrometry(GC-MS).The results show that the complex modulus of UiO-66 with 0.2wt％,0.4wt％and 0.6wt％is 17.2％,30.5％and 36.6％higher than that without UIO-66 at 30℃.Taking the content of 0.6wt％as an example,at-6℃,-12℃,-18℃ and-24℃,the S value of the rubber asphalt was increased by 5.12％,18.73％,7.86％and 6.51％respectively.When the content of UiO-66 was 0.6wt％,the number of VOCs decreased sharply from 118 to 62.The total emission concentration of VOCs from rubber asphalt decreased by 48.1％,from 1043.2 mg/m3to 501.9 mg/m3.In addition,UiO-66 has a significant inhibitory effect on a class of carcinogens,which can reduce the concentration of 1,3-butadiene by as much as 71.2％,which indicates that UiO-66 has a significant inhibitory effect on rubber asphalt VOCs.
关键词
橡胶沥青/VOCs/MOFs/UiO-66Key words
rubber asphalt/VOCs/MOFs/UiO-66引用本文复制引用
基金项目
湖北省科技厅重点研发计划项目(2022EHB006)
河北通华公路材料有限公司科技合作项目(WHLG-DTXJ-21121501)
出版年
2024
NETL
NSTL
万方数据