The use and function of PTFE sheet
PTFE sheet is a sheet made of polytetrafluoroethylene and processed by special technology. It is widely used in many fields:
Industrial fields:
1.Chemical industry: It can be used for linings and gaskets of pipes, pump nozzles, sealing packings, reactors, storage tanks, valves and containers, which can effectively prevent corrosion and chemical erosion.
2.Power industry: It is widely used in cable engineering because of its excellent corona resistance and anti-friction performance at low temperatures.
3.Petroleum, metallurgy, shipbuilding, and machinery fields: It is used to manufacture pipes, valves, pressure vessels, condensers, heat exchangers, towers, manholes, handholes and other equipment, taking advantage of its excellent corrosion resistance, high temperature resistance, pressure resistance and anti-sticking properties.
4.Electronic and electrical field: mainly used to manufacture various wire and cable insulation layers, such as coaxial radio frequency cables, battery electrodes, battery separators, printed circuit boards, sound transmission films, high-precision capacitors, etc.
5.Mechanical field: widely used in the manufacture of bearings, piston rings, machine tool guide rails, sealing materials, etc.
Transportation field
1.Automotive industry: Due to its high temperature resistance, high pressure resistance and chemical resistance, it is widely used in seals and piping systems in automobile manufacturing, and can also be used to manufacture sealing rings for automobile power steering equipment.
2.Aerospace field: In spacecraft design, it is used to manufacture structural parts such as solar panel brackets and satellite antennas, which can reduce weight by 20% - 30% while improving corrosion resistance and life; it is an ideal choice for satellite and missile connectors, such as cable plugs between satellites and missiles; PTFE sheets are also used in aircraft and spacecraft cabin interior parts, such as seat handles and dining table boards; in NASA's Mars Exploration Rover Project, the Spirit and Opportunity Mars rovers contain key components made of PTFE sheets; it is also suitable for insulation protection of electronic equipment and lines in the aerospace field.
Construction field
It can be used to manufacture supporting sliders for bridges, tunnels, steel structure roof trusses, highways and large storage tanks, etc. The special PTFE plate for stairs can be used as the lining of anti-corrosion pipes, the coating of anti-corrosion rollers, and the oil-free lubrication and anti-friction anti-sticking material of mechanical sliding rails.
Food and medical field
1.Food industry: used to manufacture containers, seals, pipes, etc. Its non-toxic, odorless, hygienic and pollution-free characteristics, as well as its anti-sticking properties can prevent food from sticking to the surface of the equipment, reduce cleaning and maintenance costs, and ensure food quality.
2.Medical industry: It can be used to manufacture medical equipment, surgical tools, pipes and infusion tubes, skin covering materials, tissue repair materials, etc. Its non-toxic, odorless and corrosion-resistant properties can ensure the safety and hygiene of medical equipment and improve the quality and efficiency of medical services.
Function of PTFE sheet
1.Protective function: It has good corrosion resistance and can protect other materials from chemical corrosion. It can be used in chemical environments such as strong acid, strong alkali, salt, oxidant, etc. It can resist all other chemicals except molten metal sodium and liquid fluorine.
2.Friction reduction function: It has an extremely low friction coefficient (0.04), which can reduce wear and extend the service life of equipment. It can be used as oil-free lubrication and anti-friction and anti-sticking material for mechanical sliding rails.
3.Insulation function: It has good insulation performance, low dielectric constant and dielectric loss, and is an ideal Class C insulation material. It can ensure the normal operation of electrical equipment and is suitable for insulation protection of electronic equipment and lines.
4.Safety and sanitation effect: non-toxic, odorless, hygienic and pollution-free, physiologically inert, can be used in the food and medical industries to ensure food quality and the safety and sanitation of medical equipment.
5.Temperature resistance effect: can be used at -180ºC - +260ºC, can be used for a long time in an environment of 200 - 260ºC, still soft at -180ºC, and allows sudden cooling and heating or alternating hot and cold operations.
6.Non-stick effect: has the smallest surface tension among solid materials and does not adhere to any substance. In the field of food processing, it can prevent food from sticking to the surface of equipment, and can be used as an anti-stick material in printing and dyeing, light industry, and textile industry.
Real product display
01 Exhibition
High and low temperature resistance
It has good mechanical toughness, working temperature range: -200ºC to +260ºC, does not become brittle at low temperature, does not decompose at high temperature. It can maintain 5% elongation.
02 Exhibition
Corrosion resistance
It is insoluble in most chemicals and solvents (except molten alkali metals and high-temperature fluorine gas), exhibits inertness, and is resistant to strong acids and alkalis, water, and various organic solvents.
03 Exhibition
High lubricity
The friction coefficient is as low as 0.05-0.10, the surface is anti-sticky and easy to clean, suitable for sealing viscous media. As a solid material, it has the characteristics of self-lubrication.
04 Exhibition
Good flexibility
It has small surface tension, high stability, is not easy to deform or bend, has good extensibility and high hardness.
Mechanical properties
| Properties |
unit |
Rseult |
| Apparent density |
g/cm3 |
2.30-2.50 |
| Tensile strength(min) |
MPA |
15 |
| Ultimate elongation(min) |
% |
150 |
| Working Temp |
ºC |
-180~260 |
| Melting point |
ºC |
327 |
| Produce Max Temp |
ºC |
385 |
| Compressive strength |
Pa |
(1834~2030)x104 |
| hardness HB |
|
0.13~0.16 |
| Friction coefficient |
|
14.5 |
Dielectric properties
| Properties |
unit |
Rseult |
Dielectric constant
50HZ |
|
2.1
2.1 |
Dielectric loss tangent
50HZ |
|
0.5x10-4 |
| Withstand voltage |
KV/mm |
60 |
| Volume specific resistance |
Ω.cm |
1014 |
| Surface specific resistance |
Ω |
1014 |
Thermal properties
| Propertiesu |
unit |
Rseult |
Thermal expansion coefficient
20~60ºC
20~100ºC
20~150ºC |
10-5X1/ºC10.3
|
10.5
11.4
12.8
|
Specific melting point ºC
50º
|
CJ/kg.K |
0.96x103
1.05x103 |
| Thermal conductivity |
W/m.k |
0.24 |
Cangzhou Shengxin Sealing Materials Co., Ltd. is located in Cangzhou City, Hebei Province, China, the world-famous "hometown of martial arts" and "capital of flange elbows". The company was established in 1985 and was formerly known as Cangxian Litong Sealing Products Factory. It has a history of more than 30 years of producing rubber products. After years of careful cultivation, the factory expanded its business scope in 1997 and added chemical sealing products such as metal spiral wound gaskets, asbestos gaskets, PTFE gaskets, graphite coated gaskets, toothed gaskets, heat exchanger gaskets, stainless steel ring gaskets, and packings. The company always adheres to the corporate spirit of "unity, endeavor, integrity, and innovation". With first-class product quality, good corporate reputation, and thoughtful and enthusiastic service, we welcome new and old customers at home and abroad to visit and negotiate business.
FAQ:
1. Are you a trading company or manufacturer?
A: We are a manufacturer with more than 30 years of production experience and have our own factory in Hebei.
2. Can you provide OEM or ODM service?
A: Yes, welcome.
3. Can you send me a sample? For free?
A: Yes, the sample is free, but the express fee should be on your side.
4. Is there any discount on the price you offer me?
A: The discounted price depends on the order quantity.
5. What are your payment terms?
A: 30% as deposit, 70% before delivery. Before you pay the balance,
We will show you the photos of the products and packages.
6. How about the delivery time?
A: Usually 15-30 days after receiving the 30% deposit. Samples are ready within 3 days.
Audited Supplier 
){kind=link}