摘要
为提高城市喷雾降尘效率,通过对喷雾降尘用表面活性剂进行筛选,旨在寻求更为优越的性能。采用实验研究方法,测定了APG、AES、1307、CAO-30、BS-12和APG-ET表面活性剂的表面张力和润湿性,发现阴离子表面活性剂和非离子表面活性剂的性能明显优于两性离子表面活性剂,以烷基糖苷(APG)为主,与筛选出的另外两种性能优良的表面活性剂异构十三醇聚氧乙烯醚(1307)和烷基糖苷酒石酸酯盐(APG-ET)进行复配,测定复配表面活性剂的表面张力和润湿性。结果表明:APG、1307、APG-ET三元复配体系的性能最佳,在m(APG)∶m(1307)∶m(APG-ET)=6∶2∶2条件下,表面活性剂溶液质量浓度为0.1%时的表面张力可达23.13 mN∙m^(−1)、粉尘的沉降时间为10 s;通过降尘试验研究了复配表面活性剂在不同浓度下对细颗粒物的去除能力,当复配表面活性剂质量浓度为0.1%时,对PM_(10)、PM_(2.5)和PM_(1.0)的去除率分别达到86.2%、84.5%、76.5%。降尘用表面活性剂的最优配方为m(APG)∶m(1307)∶m(APG-ET)=6∶2∶2,喷雾质量浓度为0.1%,该研究为提高城市喷雾降尘效果提供了参考。
To enhance the efficiency of urban dust suppression by spraying,this study conducted a systematic screening of surfactants used for spraying dust control,aiming to identify surfactants with superior performance.The surface tension and wettability of six types(APG,AES,1307,CAO-30,BS-12,APG-ET)of surfactants were examined by experimental methods.The results showed that the anionic and non-ionic surfactants exhibited significantly better performance compared to amphoteric surfactants.By primarily employing alkyl polyglucoside(APG)and blending it with the other selected surfactants with excellent performances:isomerized tridecyl alcohol polyethylene glycol ether(1307)and alkyl glucoside tartaric acid ester salt(APG-ET),the surface tension and wetting properties of the composite surfactant were determined.The results demonstrated that the ternary compound of APG-1307-(APG-ET)exhibited the best performance.The surface tension was tested as 23.13 mN∙m^(−1)and the dust sedimentation time was 10 s when m(APG):m(1307):m(APG-ET)ratio was 6:2:2 and the mass concentration of the surfactant solution was 0.1%.Dust suppression experiments were conducted to study the removal efficiency of the composite surfactant at different concentrations for fine particulate matter.When the mass concentration was 0.1%,the surfactant solution achieved removal rates of 86.2%,84.5%and 76.5%for PM_(10),PM_(2.5)and PM_(1.0),respectively.Therefore,the optimal formulation for dust suppression surfactant was determined as m(APG):m(1307):m(APG-ET)=6:2:2,with a spray mass concentration of 0.1%.This study provides practical formula references for improving the effectiveness of urban dust suppression through spraying.
作者
彭静
黄雪萍
蒋殿君
陈维洪
邓晓珊
梁丽丽
黄良志
PENG Jing;HUANG Xueping;JIANG Dianjun;CHEN Weihong;DENG Xiaoshan;LIANG Lili;HUANG Liangzhi(Industrial Technology Incubation Center,Guangdong Academy of Sciences,Guangzhou 510650,China;Guangzhou Yueyouyan Photoelectric Materials Co.,Ltd.,Guangzhou 510650,China)
出处
《材料研究与应用》
CAS
2023年第6期1165-1170,共6页
Materials Research and Application
基金
广州市科技计划项目(202103000056)。
关键词
表面活性剂
降尘率
细颗粒物
烷基糖苷
润湿性
surfactant
dust control rate
fine particles
alkyl glycosides
wettability
