Process for producing needle-punched electrostatic net by using polypropylene electrostatic fiber and acrylonitrile fiber and application thereof

Abstract

The invention relates to a process for producing a needle-punched electrostatic net by using polypropylene electrostatic fiber and acrylonitrile fiber and an application thereof, and belongs to the technical field of new material processing. When the relative humidity of the workshop reaches 80%-100%, antistatic agent is applied on the fiber raw materials in advance, the fiber raw materials whichare applied with the antistatic agent are sequentially mixed according to a preset proportion. Then, the processes of course opening, fine opening, quantitative cotton feeding, teasing, lapping, threeneedling processes consolidation molding, calendaring, reeling and cutting, and inspection are performed to obtain the needle-punched electrostatic net finished product. The needle-punched electrostatic net has the advantages of uniform and stable electrostatic charge distribution, long semi-attenuation period, high electrostatic field strength, large electrostatic charge coulomb force, strong dust adsorption capacity in air, small air resistance, high filtering efficiency, large amount of dust accommodation, low production cost, can be widely applied to an air purifier, an intelligent air conditioner and an air purification integrated device, and can also be applied to an automobile air conditioner and a protective mask.

Description

technical field [0001] The invention belongs to the technical field of new material processing, and in particular relates to a technique for producing needle-punched electrostatic nets by using polypropylene electrostatic fibers and acrylonitrile fibers and its application. Background technique [0002] With the gradual enhancement of people's awareness of environmental protection, indoor air purification has attracted more and more people's attention. Therefore, in recent years, the development momentum of air purifiers, smart air conditioners and integrated air purification equipment has been strong, and the rigid demand in the market is large. This provides a huge application market space for electrostatic fiber filters, and the demand for electrostatic fiber filters is increasing day by day. Whether it is an indoor and outdoor air purifier, or an intelligent air conditioner and integrated air purification equipment, or a car air conditioner and a protective mask, etc., ...

AI Technical Summary

Problems solved by technology

Because the composition of dust particles in the smog air is very complex, there are some harmful gases, such as formaldehyde, benzene, ammonia, etc., the purification effect of ordinary electrostatic fiber filter is very weak

3M Corporation of the United States has successively developed needle-punched electrostatic fiber filter nets and electrospun electret electrostatic nets, which are relatively popular in the purification material market at home and abroad, and the application volume is relatively large, but the price is expensive, and the retail price is as high as 500,000 yuan. / ton~650,000 yuan / ton

The existing polypropylene electrostatic staple fiber needle-punched electrostatic filter has high efficiency and low resistance, and the application effect is also very ideal. However, the application ratio of electrostatic masterbatch is small, the electrostatic charge distribution is not uniform and unstable, and the electrostatic field strength is not very ideal. The coulomb force of the electrostatic charge is small, so the ability to absorb dust in the air is slightly insufficient

The existing technical solution to solve this technical problem is to increase the mixing ratio of the electrostatic masterbatch. However, the production cost will increase significantly, which will affect the market competitiveness of the product.

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