PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
PTFE nano thin film N95 type mask
Classification:
Industry dynamics
Author:
PFA tube little sister
Source:
Dankai
Release time:
2022-11-29
Visits:
Nano-film mask is a new type of mask with single-layer nano-PTFE film material as the core filter material, which has excellent ventilation performance and protective performance, reflecting the mainstream development direction of masks in the future.
General civilian masks are divided into three generations.
First generation: gauze cover. Made of gauze material, the aperture is large, can only intercept large particles in the air, can not block PM2.5; Poor protection effect, and poor comfort, are outdated products;
Second generation: meltblown non-woven masks. The use of non-woven materials, pore size can intercept large particles in the air, the use of electrostatic effect can also absorb PM2.5;
Third generation: film masks. Made of advanced thin film materials, the pore size is small, and the use of physical principles to filter PM2.5 and other particulate matter in the air reflects the mainstream development direction of masks in the future.
The core material of the membrane mask is PTFE nano-membrane, and the diameter of the membrane fiber is between 100 and 200 nanometers. The film mask made of this material mainly has the following three characteristics:
1. barrier is more efficient. Mainly because the fiber diameter of the material used is smaller than that of traditional materials (the fiber diameter of non-woven materials used in traditional masks is more than 1000 nanometers), which can be more effective in blocking.
PM2.5 in the air (particles with an aerodynamic equivalent diameter of less than or equal to 2500 nanometers), and effectively reduce the concentration of bacteria and viruses in the air;
2. longer service life. The reason is that it applies physical principles to isolate air pollutants and is more durable (the non-woven materials used in traditional masks need to rely on electrostatic adsorption due to the large fiber diameter.
Granules, and static electricity is affected by temperature and humidity in the environment, it will fail in a short time, so it can only be used once);
Breathe more easily and freely when the 3. is worn. This is mainly due to the better breathability and moisture resistance of the nano film. In short, film masks have excellent breathability and protective properties, reflecting the future.
The mainstream development direction of masks.
The dust-blocking efficiency of the film mask is based on its barrier efficiency to particles in the air, especially air particles with a diameter of less than 2500 nanometers. Qualified film masks, not only can
Effectively block PM2.5 particles in the air, but also significantly reduce the concentration of viruses, bacteria and so on. The traditional non-woven mask, the dust-blocking principle is electrostatic adsorption, the interception effect is relatively poor, the adsorption of the particles.
Particulate matter also easily lead to a decrease in breathability, reduce the comfort of wearing, and the use of nano-film material film mask, fiber diameter is small, dust-blocking efficiency is higher, from the physical level can be achieved on PM2.5.
Better barrier of particles.
The traditional non-woven mask fiber diameter of 1000 nm or more, its filtration efficiency needs to rely on the electrostatic effect, the adsorption of particles, and the electrostatic effect due to the impact of temperature and humidity in the environment.
Failure, making the use of traditional non-woven masks shorter. The use of nano-film material film mask, its fiber diameter is small, from the physical surface of PM2.5 and other particles to block, so its.
The use time is also long.
The wearing comfort of the mask is mainly determined by the breathability and moisture permeability of the mask. The film mask has a higher air permeability by virtue of its material characteristics of high hole uniform distribution rate;
The moisture-proof and moisture-permeable properties of the membrane material can bring users a more comfortable breathing experience.
This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!
Key words:
Ptfe, film, material, air, diameter, pm2.5, breathability, moisture resistance
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