Self-cleaning polybutyrolactam electrostatic spinning filter material and preparation method thereof

• Main Authors: ZHAO LIMING, ZHAN FANGKE
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2024
• Subjects: MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; SPINNING; TEXTILES; TRANSPORTING

The invention relates to a self-cleaning polybutyrolactam electrostatic spinning filtering material and a preparation method thereof.The polybutyrolactam electrostatic spinning filtering material is formed by gathering polybutyrolactam electrostatic spinning monofilaments, and the monofilaments contain inorganic nanocrystalline particles. A small amount of inorganic salt is added into a polymer solution, nanocrystals are added in the preparation process of a spinning mixed solution, and static spinning process parameters are cooperatively and accurately regulated and controlled, so that the fluffy three-dimensional net-shaped efficient low-resistance fiber filtering material with a self-cleaning effect is obtained. Compared with the prior art, the invention has the advantages of simple process, greenness, high efficiency, light and thin texture, complete degradability, PM2.5 particle filtering efficiency of more than 98%, piezoresistance of less than 20Pa, dust holding capacity of 3000-3600g/m < 2 >, and the