PTFE (polytetrafluoroethylene) is a thermoplastic with a range of excellent properties. The following is a detailed analysis of PTFE material properties:

1. Chemical stability: PTFE has very high chemical stability, almost insoluble in all strong acids, strong bases, strong oxidants, reducing agents, etc., including concentrated sulfuric acid, nitric acid, and even boiling in aqua regale, its weight and performance are unchanged. This property makes it widely used in many chemical reactions.

2. Corrosion resistance: PTFE does not absorb moisture, non-flammable, extremely stable to oxygen and ultraviolet light, so it has excellent weather resistance. Even high-energy radiation can not cause degradation, so that it can still maintain stable performance in harsh environments.

3. High temperature resistance: PTFE can be used in a wide area of -250 ~ 260 ° C, even at ultra-low temperatures of -260 ° C can still maintain a certain degree of flexure; At 260℃, its breaking strength remains about 5MPa (about 1/5 of room temperature), and its bending strength reaches 1.4MPa. This gives it excellent performance in high temperature environments.

4. Electrical properties: The electrical properties of PTFE are also excellent, the dielectric constant and dielectric loss are very low, and the breakdown voltage, volume resistivity and arc resistance are high. This makes it widely used in fields such as electronic equipment and wire and cable.

5. Biocompatibility: PTFE has excellent biocompatibility and is widely used in the manufacture of medical devices and biological materials. This characteristic makes it have wide application prospect in medical field.

Molding performance: PTFE has good fluidity and is easy to injection, extrusion and blow molding. Its small shrinkage rate and good dimensional stability make the accuracy and appearance quality of PTFE products guaranteed.

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In general, PTFE has excellent properties, making it in the semiconductor, automotive parts, electrical appliances, construction, oil and gas exploration, medical and other fields have a wide range of applications. However, it should be noted that the cost of PTFE is relatively high, and environmental protection and safety issues need to be paid attention to during processing and use.