PTFE rods (polytetrafluoroethylene rods) are thermoplastic engineering plastic rods made from polytetrafluoroethylene (PTFE) resin, formed through molding or extrusion. PTFE is a polymer formed by free radical polymerization of tetrafluoroethylene monomer (CF₂=CF₂). Its molecular chain is composed entirely of carbon-fluorine (C-F) bonds, giving the material its unique properties as the "king of plastics." PTFE rods feature an extremely smooth surface (roughness Ra <0.05μm, near-mirror finish) and a uniform color (typically white, with black available for customization). They have a density of 2.1-2.3g/cm³, and typically range in diameter from 4mm to 260mm. Lengths can be customized upon request.
Product Advantages
An "All-Round Barrier" for Chemical Equipment
PTFE rod's stability against all chemical media makes it a core material for chemical storage tanks, pipelines, and reactors. For example, in tank linings storing highly corrosive media such as concentrated sulfuric acid, hydrofluoric acid, and aqua regia, linings made from PTFE rod can withstand corrosion from acid/alkaline solutions with concentrations below 98% (with a service life of >15 years), eliminating the risk of leakage from metal tanks due to corrosion. In high-purity chemical pipelines used in semiconductor manufacturing, PTFE rod's non-swelling properties (ensuring a smooth, contamination-free inner pipe wall) ensure the purity requirements of the chip manufacturing process (metal ion content <1 ppb). In acid and alkaline plating tank seals in electroplating plants, its resistance to chloride ion corrosion (resistance to chloride ion penetration in the plating solution) and high-temperature resistance (short-term resistance to 260°C) ensure long-term seal effectiveness (service life of >8 years).
A Stable Foundation for Electronics, Appliances, and Aerospace
F4 rod's wide temperature stability (-200°C to +260°C) and ultra-low dielectric loss make them an ideal choice for electronics, appliances, and aerospace equipment. For example, in high-frequency insulation components of satellite communication antennas, PTFE rods maintain a stable dielectric constant (error <0.1%) despite temperature fluctuations from -100°C to +200°C, ensuring signal transmission quality (loss <0.001dB/m). In aircraft engine gaskets, their ability to withstand short-term temperatures of 300°C (common plastics can only withstand temperatures below 200°C) ensures leak-free operation in extreme environments (compliant with AS9100 aviation standards). In the insulation layer of high-frequency circuit boards in 5G base stations, PTFE rods' low dielectric loss (tanδ <0.0002) improves signal transmission efficiency, reducing energy consumption by 10%-15%.
"Efficient Solutions" in the Industrial Machinery and Food Industries
PTFE rods' self-lubricating properties (friction coefficient of 0.04-0.10) and non-stick properties (extremely low surface energy) make them outstanding in industrial machinery and food processing. For example, in conveyor belt guides in food processing plants, PTFE rods' low friction (no lubrication required) and easy cleanability (food residues automatically slide off) ensure production line hygiene standards (ISO 22000 certified). In agitator bearings in chemical equipment, their self-lubricating properties (lifetime maintenance-free) and chemical resistance (resistance to reaction media corrosion) extend equipment life (>10 years). In roller bearings in textile mills, PTFE rods' low friction (reducing yarn breakage) and high-temperature resistance (withstanding high dryer temperatures) improve production efficiency (yielding yarn quality pass rates >99%).
"Safeguard" for Power Equipment and Outdoor Facilities
PTFE rods' excellent insulation properties (volume resistivity ≥ 10¹⁸Ω·cm) and weather resistance (outdoor service life > 20 years) make them a key material for power equipment and outdoor facilities. For example, in the insulating partitions of high-voltage switchgear, PTFE rods maintain a dielectric strength > 20kV/mm (compliant with IEC 60695 standards) even in long-term high-humidity environments, preventing arc discharge risks. In the cable sheathing of photovoltaic power generation systems, their UV resistance (no degradation after 20 years of outdoor exposure) and high and low temperature resistance (-40°C to +150°C) ensure long-term stable operation (service life > 25 years). In the antenna covers of communication base stations, PTFE rods' low dielectric constant (2.0-2.1) and weather resistance (resistance to wind and rain erosion) improve signal transmission efficiency (loss < 0.002dB/m).
