化工新型材料

化工新型材料 ›› 2023, Vol. 51 ›› Issue (9) : 96-101. DOI: 10.19817/j.cnki.issn1006-3536.2023.09.018

新材料与新技术

无针电纺空气过滤用尼龙66复合纳米纤维膜的研究

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Preparation of PA66 composite nanofiber membranes for air filtration by needleless electrospinning

Liu Zexin^1,2,3,4, Shi Zhiwen^1,2,3,4, Zhang Wei⁴, Yan Xiaoyu⁴, Wang Hanqing⁵, Xie Dong^1,2,4

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Received		Published
2022-06-07		2023-09-20
Issue Date	Revised Date
2023-09-25	2022-06-07

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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/SiO₂、PA66/GO复合纳米纤维过滤膜。研究了不同浓度的SiO₂、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SiO₂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%。

Abstract

In order to reduce the harm caused by air pollution,PA66/SiO₂ and PA66/GO composite nanofibers filter membranes were prepared by needleless electrospinning equipment.The effects of different concentrations of SiO₂ 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 SiO₂ 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.

关键词

无针静电纺丝 / 空气过滤 / 二氧化硅 / 氧化石墨烯 / 尼龙66

Key words

needleless electrospinning / air filtration / SiO₂ / GO / PA66

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无针电纺空气过滤用尼龙66复合纳米纤维膜的研究[J]. 化工新型材料, 2023, 51(9): 96-101 DOI:10.19817/j.cnki.issn1006-3536.2023.09.018

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