Long-acting electret PP non-woven fabric and preparation method thereof

Abstract

The invention provides long-acting electret PP non-woven fabric. The long-acting electret PP non-woven fabric is mainly prepared from the following components in parts by weight: 30 to 35 parts of electret master batch, 36 to 44 parts of melt-blown polypropylene, 8 to 17 parts of surface-treated silicon dioxide, 3 to 5 parts of polyvinylidene fluoride, 5 to 7 parts of polytetrafluoroethylene and 3to 5 parts of PFA. According to the long-acting electret PP non-woven fabric and the preparation method thereof provided by the invention, after the non-woven fabric is treated by an electret process, the filtering performance and charge storage performance of fibers are greatly improved, the high temperature resistance and high humidity resistance of the non-woven fabric are effectively improved, meanwhile, the hydrophobic and oleophobic properties of the fibers are also improved, and the service life is prolonged. In addition, the long-acting electret non-woven fabric also has the functionsof antibiosis, disinfection, deodorization and the like.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a long-acting electret PP nonwoven fabric and a preparation method thereof. Background technique [0002] With the improvement of people's living standards in our country, people's requirements for their own health and environment are getting higher and higher. Airborne dust and bacteria are two of the most serious pollutants, especially in public places, or indoors with poor ventilation, such as patient rooms and public facilities. The particle size of these dust and bacteria is about 0.1-0.3 microns, which is difficult to filter out with ordinary filters. After our country has withstood the crazy attack of SARS, people have stricter requirements on the filtration efficiency and particle size of filter materials. However, traditional air filter materials are not very effective in filtering particles with a particle size of less than 1 micron, and there is static electricity. ...

AI Technical Summary

Problems solved by technology

The particle size of these dusts and bacteria is about 0.1-0.3 microns, and it is difficult to filter them out with ordinary filters.

After our country has withstood the crazy attack of SARS, people have stricter requirements on the filtration efficiency and particle size of filter materials. However, traditional air filter materials are not very effective in filtering particles with a particle size of less than 1 micron, and there is static electricity. The storage time of the charge is short, the charge decays quickly, especially under high humidity conditions, the decay rate is further accelerated, so the filtration efficiency drops rapidly after a certain period of time, especially after the disinfectant loses the filtration efficiency after cleaning, and cannot be used repeatedly.

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