PTFE biaxially stretched film refers to a microporous film made of polytetrafluoroethylene as raw material, using special processing technology, and processed by calendering, extrusion, biaxial stretching and other methods.
It has excellent characteristics such as high peel strength, large air permeability, and uniform pore size distribution.
Today, we mainly introduce the main production process of ptfe biaxially stretched film.
1. Hot melt adhesive lamination? This process was first used in sanitary napkins, diapers, and protective clothing.
The disadvantage is that the air permeability is relatively low, because the micropores of the PTFE biaxially stretched film in the middle are actually blocked by hot melt glue.
In addition, the most fatal shortcoming is that the temperature resistance is very low and can only withstand temperatures of 60 degrees.
A simple example is that in winter, double-sided tape has almost no stickiness and will delaminate.
But in summer, the glue on the surface of the double-sided tape will melt.
?2. Hot pressing lamination? It is understood that the real ptfe biaxially stretched film should be highly breathable, high temperature resistant, anti-aging, and have a hydrostatic pressure of more than 2 meters.
The production process should be pure thermal composite technology, without glue, so it can achieve a temperature resistance of more than 110°, high strength and anti-aging. This is currently a domestic product that can truly meet EU standards and is the latest domestic technology.
? is a fluorine material film manufacturer integrating production, sales and customization.
The company has advanced ptfe film production lines and composite production lines.
The company’s products are widely used in various fields. With strong technical force and strict management system, the company ensures that everything focuses on the interests of users and provides users with high-tech, high-quality, high-performance, and high-level products.
Interested parties can enter the store for consultation.
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