Polytetrafluoroethylene sealing tape,expanded - Names and Identifiers
Polytetrafluoroethylene sealing tape,expanded - Introduction
Expanded PTFE (Expanded PTFE) sealing tape is a special sealing material with the following properties:
1. Excellent chemical stability: expanded PTFE sealing tape has strong corrosion resistance to most chemicals and can be used in a wide temperature range.
2. Good sealing performance: It has a low leakage rate and excellent sealing performance, which can effectively prevent the leakage of gas, liquid and solid particles.
3. With elasticity and flexibility: expanded PTFE sealing tape has high ductility and plasticity, can automatically fill and adapt to different shapes and sizes of the sealing surface, to provide a stable seal.
4. Strong wear resistance: It has excellent wear resistance and can maintain a stable sealing effect under harsh environments such as high pressure, high temperature and vibration.
The main uses of the expanded PTFE sealing tape are as follows:
1. Pipeline and valve sealing: suitable for sealing various pipelines, valves and flanges, and can be used in tap water, petroleum, chemical, pharmaceutical, food and other industries.
2. Equipment sealing: can be used for pressure vessels, pumps and compressors and other equipment sealing, can effectively prevent pressure leakage and gas infiltration.
3. Plastic pipe connection seal: can be used in plastic pipe joints and threaded parts, to provide reliable sealing performance.
The preparation method of expanded PTFE sealing tape mainly includes the following steps:
1. Heat the standard PTFE resin to its melting point.
2. Inject the molten PTFE resin into a special mold, and inject olefins, nitrogen and other additives at the same time.
3. Heat the mold at high temperature to expand the polytetrafluoroethylene into a sponge shape.
4. The expanded polytetrafluoroethylene for subsequent demoulding, drying and cutting processing.
As far as safety information is concerned, the expanded PTFE sealing tape is generally non-harmful and will not release toxic substances. During use, avoid prolonged exposure to high temperature or high concentration corrosive media. At the same time, pay attention to prevent the strap from breaking or breaking to avoid leakage. During handling, care should be taken to avoid inhalation or ingestion of the resulting dust, and appropriate protective equipment, such as gloves and masks, should be worn.
Last Update：2024-04-09 21:53:21