Polytetrafluoroethylene (PTFE) material, commonly known as the “King of Plastics”, is a polymer compound polymerized by tetrafluoroethylene. The PTFE base film has excellent high temperature resistance, oxidation resistance, alkali resistance, hydrophobicity, Non-stick properties.
The transverse stretching of ptfe base film is an important and complex process, and the entire process is carried out in a continuous thermal environment.
The mono-oriented film that has been stretched longitudinally undergoes complex thermodynamic coupling deformation during the subsequent transverse stretching process, so this process is often called a black box that is difficult to analyze.
In order to fully understand, understand, and master the characteristics and influencing factors of the transverse stretching process, so as to improve the uniformity of the film, the researchers studied the deformation mechanism of the film during the transverse stretching process.
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