What is the main structure of PTFE film?
The main structure of polytetrafluoroethylene film: 1. The surface morphology of ptfe film is a spider web-like microporous structure.
Pores are formed between the microfibers, and the arrangement direction of the microfibers is basically parallel to the stretching direction; the junction of the fiber bundles is the node, which is formed by the entanglement of many microfibers.
2. PTFE membrane is an asymmetric membrane, and the micropore size is different on the front and back sides of the membrane.
3. The cross-sectional micropore size of the polytetrafluoroethylene film is larger than the micropore size on the surface, and the vertical and horizontal micropore sizes are also different, with the longitudinal micropores being larger than the transverse ones.
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