Melt blown cloth electret masterbatch has entered white-hot, and overseas epidemic diagnoses are rising daily. After all, there was no resistance. Faced with the daily increase in the number of confirmed diagnoses, the medical system of the world's largest country is also unacceptable.

Masks are a protective product against the new crown virus, and their functions and effects have also been verified by China and many countries. In the first half of this year, many countries and regions around the world issued a "mask order", and China has also become the world's largest exporter of masks.

China is the first country to "stand out" in the epidemic. It has rich experience in fighting the epidemic. It responded to the rebound of the epidemic in Beijing some time ago and blocked the way of transmission. Although the number of confirmed cases is believed to be cleared sooner or later.

The epidemic situation abroad is still serious. Faced with a low rate of resumption of work, imported medical supplies such as mask disinfectant have become the main way to ensure the daily consumption of citizens.

Why can medical masks prevent viruses?

Virus protection masks mainly include medical surgical masks and N95 masks. The national YY 0469-2004 "Technical Requirements for Medical Surgical Masks" stipulates that the important technical indicators that medical surgical masks must meet include filtration efficiency, bacterial filtration efficiency and respiratory resistance:

1. Filtration efficiency: under the condition of air flow (30±2) L/min, the filtration efficiency is not less than 30%;
2. Bacteria filtration efficiency: under the specified conditions, the filtration efficiency is not less than 95%;
3. Breathing resistance: under the condition of filtration efficiency and flow rate, the inhalation resistance does not exceed 49Pa and the exhalation resistance does not exceed 29.4Pa.

Staphylococcus aureus bacteria aerosol filtration efficiency is not less than 95%, which is the origin of the concept of N95. Therefore, although N95 masks are not medical masks, they meet the 95% standard of filtration efficiency, so they can also play a good role in virus prevention.

The main material that brings the virus filtering effect to these two masks is the extremely fine and electrostatic inner filter cloth-meltblown non-woven fabric.

Meltblown non-woven fabric filtration principle

The main material of meltblown non-woven fabric is polypropylene, which is a kind of ultra-fine electrostatic fiber cloth, which can capture dust. When the droplets containing pneumonia virus come close to the meltblown non-woven fabric, they will be electrostatically adsorbed on the surface of the non-woven fabric and cannot penetrate. After the dust is captured by the ultra-fine electrostatic fiber, it is very difficult to be removed due to washing, and washing with water will also destroy the electrostatic dust collection ability. Therefore, this mask can only be used once.

What is electret masterbatch?

For medical masks, the electret meltblown cloth with electret masterbatch and high-voltage piezoelectric treatment is the core part. Only after electret treatment, the meltblown cloth has a lot of electric charge, which is also 0.3 Micron non-oily small particles have high-efficiency adsorption effect, usually more than 95%.

Why use electret masterbatch for mask production?

In addition to mechanical barriers, mask filtering also has electrostatic adsorption. Fiber filter material is a common material used to deal with pollution and purify air and water.

Electret refers to a dielectric material with a long-term storage charge function. The stored charge can be a unipolar real charge (or space charge) injected from the outside, or it can be an ordered orientation of dipoles in a polar dielectric. The formed dipole charge, or both types of charges.

When the meltblown fiber is ejected from the nozzle hole, if it is bombarded by charged protons such as electrons or ions, the meltblown fiber substrate can become an electret; similarly, when the microfiber substrate is collected, make it The corona treatment can also make it an electret.

Electret treatment: Electret refers to a dielectric material with long-term storage of electric charge. It has the advantages of high efficiency, low flow resistance, antibacterial, and energy saving. On the basis of ensuring the physical collision barrier effect of conventional filter materials, it adds electrostatic adsorption. , A large number of electrodes are formed between the electric fibers. The charged fibers can not only attract most of the charged particles in the environment, but also polarize the uncharged particles, thereby adsorbing some smaller pollutants, even viruses. Nano-scale substances can also be electrostatically adsorbed or blocked by charge repulsion.

Therefore, it can be seen that the melt blown cloth market is not "cool". The important thing is to improve product quality, break the strange phenomenon of "prices but no market" in China's melt blown cloth, and use product quality to speak.

Nowadays, the requirements for meltblown mask cloth are getting higher and higher. Whose electret masterbatch are used by the bosses of meltblown cloth factories? Hangzhou Yujie Chemical Co., Ltd. electret masterbatch has passed the oily FFP3 test and upgraded the third generation water electret masterbatch. Welcome to buy!

Hangzhou Yujie Chemical Co., Ltd. is a comprehensive enterprise specializing in plastic modification and masterbatch. The company selects a batch of advanced equipment at home and abroad as well as complete experimental and testing instruments for research and development of new products to ensure high quality and quality control. We adhere to the principle of customer first, quality-oriented, credibility assurance, continuous development and innovation, and truth-seeking beauty. Over the years, it has been well received by customers.

Yujie sincerely welcomes friends from home and abroad to write to us to discuss business, if you have any intention, please contact us!

Hangzhou Yujie Chemical Co., Ltd.
Contact: Mr. Zhang
Mobile: 139-5717-3655
Phone: 0571-85095115
Fax: 0571-85095005
Website: www.hzyjchem.com
Email: zpl620504@163.com
Address: Room 515, Tianhe Office Building, 257 Tiyu Road, Xiacheng District, Hangzhou