• Celida brand PTFE sheet
• Celida brand PTFE pipe
• Celida brand PTFE rods
• Celida brand PTFE film
• Polytetrafluoroethylene processed products
• Fully transparent PFA tube
• Transparent FEP tube
• Insulating material sleeve
• Production Equipment

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Polytetrafluoroethylene (abbreviated as teflon, generally known as "non-stick coating" or "easy-to-clean material". This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene has the characteristics of high temperature resistance and its friction coefficient is extremely low, so it can be used as a lubricant and has become an ideal coating for the inner layer of easy-to-clean water pipes.

Advantages

High temperature resistance - the working temperature is up to 250℃.

Low temperature resistance - has good mechanical toughness; even if the temperature drops to -196℃, it can maintain an elongation of 5%.

Corrosion resistance - inert to most chemicals and solvents, resistant to strong acids, alkalis, water and various organic solvents.

Weather resistance - has the best aging life among plastics.

High lubricity - the lowest friction coefficient among solid materials.

Non-adhesive - the smallest surface tension among solid materials, no adhesion to any substance.

Non-toxic - physiologically inert, no adverse reactions when implanted in the body as artificial blood vessels and organs for a long time.

Electrical insulation - can withstand 1500 volts of high voltage.

Disadvantages

1. Polytetrafluoroethylene has "cold flow". That is, the plastic deformation (creep) of the material product under long-term continuous load, which brings certain restrictions to its application. For example, when PTFE is used as a sealing gasket, the bolts are tightened very tightly for a tight seal, so that when the specific compressive stress is exceeded, the gasket will produce "cold flow" (creep) and be flattened. These shortcomings can be overcome by adding appropriate fillers and improving the structure of parts.

2. PTFE has outstanding non-stick properties, which limits its industrial application. It is an excellent anti-stick material, and this property makes it extremely difficult to bond with the surface of other objects.

3. The linear expansion coefficient of PTFE is 10 to 20 times that of steel, which is larger than most plastics. Its linear expansion coefficient changes very irregularly with temperature changes. When applying PTFE, if you do not pay enough attention to this performance, it is easy to cause losses.