The modern petrochemical industry has increasingly higher requirements for sealing materials. It requires sealing gaskets to be resistant to corrosion from various media, applicable to a wide temperature range,…

PTFE single-component clothing film is made through special processes such as mixing, extrusion, extrusion, calendering, and biaxial stretching. Due to the characteristics of ptfe fibrillation, when performing …

Although a certain amount of colorant is added to the ptfe bubble point film composite material, it still has good electrical insulation and is suitable for the insulation and classification identification of w…

The quality of the filtration effect generally has a lot to do with the material, but in addition to the material, the technology and style of the mask also have a lot to do with it. First of all, the filtratio…

General masks are made of non-woven materials. The fiber diameter of the filter material is very large (between 1000 nanometers and 5000 nanometers), and the protective effect is definitely not as good as that …

The disposable cloth mask filter membrane adopts a special processing technology and is a microporous film made by calendering, extrusion, biaxial stretching and other methods. This kind of membrane has excelle…

The respiratory impedance of the filter membrane of disposable cloth masks is only 60-70pa, and that of ordinary melt-blown non-woven masks is as high as 120-250pa. In comparison, the breathability of film mask…

The protective function of film masks is very strong, far better than ordinary masks. Answer this question from two perspectives. First of all, the filtration effect of membrane masks is better. This is mainly …