摘要
为减少空气污染带来的危害,使用无针静电纺丝设备制备了PA66/SiO_(2)、PA66/GO复合纳米纤维过滤膜。研究了不同浓度的SiO_(2)、GO对复合纳米纤维膜形貌、孔径分布、强度及过滤性能的影响。结果表明:当SiO_(2)浓度为20%时,复合膜的过滤性能最佳,对0.3μm NaCl气溶胶颗粒的过滤效率达99.84%,阻力122.85Pa,品质因子为0.0524Pa^(-1),相比较于未改性品质因子提升了36.8%。而当GO浓度为0.3%时,复合膜拉伸性能最好,断裂强度和断裂伸长率分别为7.52MPa和47.05%,相比较于未改性,分别增加了88.47%和22.85%。
In order to reduce the harm caused by air pollution,PA66/SiO_(2)and PA66/GO composite nanofibers filter membranes were prepared by needleless electrospinning equipment.The effects of different concentrations of SiO_(2)and GO on the fiber morphology,pore size distribution,strength and filtration performance of the composite nanofiber membranes were studied.The results showed that when the SiO_(2)concentration was 20%,the filtration performance of the composite membrane was the best.The filtration efficiency for 0.3μm NaCl aerosol was 99.84%,the resistance was 122.85Pa,and the quality factor was 0.0524Pa^(-1,)which was 36.8%higher than that of the unmodified membrane.When the GO concentration was 0.3%,the tensile property of the composite membrane was the best,the fracture strength and elongation at break were 7.52MPa and 47.05%,respectively,which were increased by 88.47%and 22.85%,respectively,compared with those of the unmodified composite membrane.
作者
刘泽鑫
时志文
张维
闫晓宇
王汉青
谢东
Liu Zexin;Shi Zhiwen;Zhang Wei;Yan Xiaoyu;Wang Hanqing;Xie Dong(School of Civil Engineering,University of South China,Hengyang 421000;National&Local Joint Engineering Research Center for Airborne Pollutants Control and Radioactivity Protection in Buildings,University of South China,Hengyang 421000;Yangtze Delta Research Institute(Zhuji),University of South China,Shaoxing 311800;Hangzhou Longbeach Technology Co.,Ltd.,Shaoxing 311800;School of Civil Engineering,Central South University of Forestry&Technology,Changsha 410004)
出处
《化工新型材料》
CAS
CSCD
北大核心
2023年第9期96-101,108,共7页
New Chemical Materials
基金
国家自然科学基金(U1867221)
湖南自然科学基金项目(2020JJ6004)。
