Nowadays, with the emergence of smog, many filter materials have also been produced, and there are still many in the research. We will talk about the research of electrostatic spinning air filter materials below. Let ’s take a look.
At present, the use of high-efficiency air filter materials to intercept fine particles in the air is an effective protective measure against smog pollution. Among the many existing air filtration materials, electrospun nanofibers have a broad application prospect in the field of high efficiency and low resistance air filtration due to their advantages such as small diameter, small pore size, high porosity, and significant electret effect.
Recently, the research team of Academician Yu Jianyong of the Textile Technology Innovation Center of Donghua University published a review paper entitled "Electrospun nanofibers for high-performance air filtration" in Composites Communications, an Elsevier journal. Research progress in filter materials.
Based on the development history and research status of air filter materials, this review paper systematically summarizes two major preparation strategies for high-efficiency and low-resistance electrostatic spinning air filter materials: structural regulation and electrostatic enhancement.
In terms of structural regulation, the author combined the classic single-fiber filtration mechanism, introduced in detail the representative structure of two-dimensional membrane materials with smooth single-fiber and multi-level rough single-fiber as the building element, and introduced multi-level mesh Research on the application of three-dimensional aerogels in filter materials has analyzed the inherent relationship between the aggregation structure of fibrous materials and filter performance.
In terms of electrostatic enhancement, the author summarizes the methods used by researchers to increase the surface potential of fibers by regulating high-voltage in situ electret technology, and introduces the recent progress in the preparation of charged fibers by combining friction nano-power generation technology with electrostatic spinning fibers.
Finally, the review looks forward to the electrostatic spinning fiber air filter material from three aspects: the further deepening of the air filtration mechanism, the further improvement of the mechanical properties of the material, and the industrialization of the electrostatic spinning fiber air filter material.
At present, electrostatic spinning fiber air filter materials are very important, and I believe that the market will become wider and wider in the future. I hope this article can help everyone.
Link to this article: http://zapliving.com/hzsl/news/2019-11-6/104.html