文献类型：期刊文献

英文题名：Biodegradable Polybutyrolactam Microfiber Membrane as a Highly Efficient Air Filter for PM2.5 Particle Filtration

作者：Zhan, Fangke[1,2,3];Wang, Ziying[1,2,3];Shi, Junyu[4];Zhang, Di[1,2,3];Wang, Mingda[1,2,3];Yi, Zhenwei[1,2,3];Zhao, Liming[1,2,3]

机构：[1]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Biobased Mat Engn, China Natl Light Ind, Shanghai 200237, Peoples R China;[3]Shanghai Collaborat Innovat Ctr Biomfg Technol SCI, Shanghai 200237, Peoples R China;[4]Shanghai Jiao Tong Univ, Shanghai Peoples Hosp 9, Sch Med, Natl Clin Res Ctr Stomatol,Dept Oral & Maxillofaci, Shanghai 200011, Peoples R China

年份：2024

卷号：6

期号：2

起止页码：1215

外文期刊名：ACS APPLIED POLYMER MATERIALS

收录：;EI(收录号：20240315407330);WOS:【SCI-EXPANDED(收录号:WOS:001152646100001)】；

基金：This work was supported by the Research and Development of Technical Standards for Biobased Material Polybutyrolactam Project (21DZ2205900), and the 111 Project(B18022).

语种：英文

外文关键词：biobased degradable; polybutyrolactam; electrospun; air filtration; PM 2.5

摘要：Particulate matter (PM) pollution poses a significant threat to human health on a global scale. However, current conventional air filtration materials, made from nonbiodegradable petroleum-based components, contribute to resource consumption and waste emissions, and are unable to meet the public's demand for environmental protection and energy conservation. For the first time, we report environmentally friendly biobased biodegradable polybutyrolactam (also known as PA4) electrospun air filters with superior mechanical properties and high interception efficiency. Compared with the commercial particulate filtration efficiency of 95% polypropylene melt-blown nonwoven fabric (PFE95), the successfully prepared green biobased degradable PA4 electrospun microfiber membrane has a lighter texture (<3 mg/cm(2)) and high porosity (>80%) with as high as 99.85% for PM 2.5 filtration performance. In addition, the PA4 electrospun microfiber membranes also have very stable outstanding mechanical properties especially on tensile strength (>= 4.25 MPa) and Young's modulus (>= 34.82 MPa) at the same time. The biodegradability of PA4 electrospun microfiber membranes in campus soil was investigated, and the weight loss was approximately 88% within 49 days. This would not only make it a promising candidate for green and pollution-free air filtration but also provide insights into the design and development of composite membranes for multifuntionalities for various applications.