PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
The difference between PTFE molded plate and turning plate
Classification:
Industry dynamics
Author:
PFA tube little sister
Source:
Dankai
Release time:
2022-11-28
Visits:
Introduction of 1. Teflon Die-pressing Plate
No matter what products, have some of their own advantages, PTFE molded plate is no exception, so we know what are the advantages of PTFE molded plate?
Introduce the performance of high temperature resistance and low temperature resistance of PTFE molded plate.
1. High temperature resistance
Although in the production situation, if there is polytetrafluoroethylene plate material, the acceptable temperature is as high as 250 degrees, and the production situation under high temperature conditions can be understood from the beginning to the end.
The result is very special. It is still very good to take out the high-temperature employment situation from the beginning to the end. From this perspective, after seeing this high-temperature resistant function, it is complete in many
The category of cities has a wide range of use.
2. Low temperature resistance
Because the PTFE plate material has a very strong machine toughness, especially in the process of stable landing, it can still connect a long elongation, so in this perspective, see the low
After Wen's function, the results brought about by the complete employment situation in many industries are still very good. As long as the master of its technology, gradually in the quality of the same has a significant progress.
Special energy of 2. PTFE turning plate
Polytetrafluoroethylene (F4,PTFE) has a series of excellent performance;
High temperature resistance-long-term use temperature 200~260 degrees;
Low temperature resistance-still soft at -100 degrees;
Corrosion-resistant aqua regia and all organic solvents;
Weather resistance-the best aging life in plastics;
Highly lubricated-with the smallest coefficient of friction in plastics (0.04);
Non-stickiness-having the smallest surface tension in solid materials without adhering to any substance;
Non-toxic-physiologically inert;
Excellent electrical properties, is the ideal C- class insulation material.
Features: PTFE turning plate, film, with the PTFE molding blank turning processing system, it has excellent dielectric properties, not aging, the best corrosion resistance and broad use strength
Scope. The film is a non oriented film, and the non oriented film is developed into a directional and semi directional film by pressure.
Uses: Gasket seals and lubricating materials used in various media, as well as electrical insulators used at various frequencies. Capacitor dielectric, wire insulation, electrical instrument insulation, etc.
Advantages:
High temperature resistance-the working temperature can reach 250 ℃.
Low temperature resistance-has good mechanical toughness; even if the temperature drops to -196 ℃, it can maintain 5% elongation.
Corrosion resistance-for most chemicals and solvents, showing inert, strong acid and alkali, water and various organic solvents.
Weather-resistant-has the best aging life in plastics.
High lubrication-is the lowest coefficient of friction in solid materials.
No adhesion-is the smallest surface tension in solid materials, does not adhere to any substances, mechanical properties of its coefficient of friction is very small, only polyethylene 1/5, which is an important feature of perfluorocarbon surface. Again
Since the fluorine-carbon chain intermolecular force is extremely low, polytetrafluoroethylene is non-sticky.
Non-toxic-physiologically inert, as a long-term implantation of artificial blood vessels and organs without adverse reactions.
Figure 1: PTFE turning plate Source: Network
The dielectric constant and dielectric loss of PTFE in a wide frequency range are very low, and the breakdown voltage, volume resistivity and arc resistance are high.
Radiation resistance PTFE radiation resistance is poor (104 rad), caused by high-energy radiation degradation, the electrical and mechanical properties of the polymer decreased significantly.
Application of polytetrafluoroethylene can be compressed or extruded molding; can also be made into water dispersion, used for coating, impregnation or made into fiber. PTFE in atomic energy, aerospace, electronics, electrical, chemical
Industry, machinery, instruments, meters, construction, textiles, food and other industries are widely used in high and low temperature resistant, corrosion resistant materials, insulation materials, anti-stick coating and so on.
Atmospheric aging resistance: radiation resistance and low permeability: long-term exposure to the atmosphere, the surface and performance remain unchanged.
Non-combustibility: limiting oxygen index below 90.
Acid and alkali resistance: insoluble in strong acids, strong alkalis and organic solvents.
Oxidation resistance: can resist the corrosion of strong oxidants.
Acid and alkaline: neutral.
The mechanical properties of polytetrafluoroethylene are relatively soft. Has a very low surface capacity.
Figure 2: PTFE turning plate Source: Network
The difference between 3. PTFE molded plate and turning plate
PTFE plate (also called PTFE plate, Teflon plate, Teflon plate) molding and turning two. The molded plate is made of PTFE resin at room temperature by molding, and then sintered and cooled.
The PTFE turning plate is made of PTFE resin by pressing, sintering and rotary cutting. Generally speaking, the thickness of the PTFE turning plate is 0.5 mm-8mm, while the thickness of the PTFE molded plate is
5mm-50mm. PTFE turning plate is a PTFE resin by molding into a blank, after sintering, and then turned into products. Teflon turning plate (width × thickness unit:
Mm) 1000~2000 × 0.5~3.0 PTFE molded plate is made of PTFE resin by molding at normal temperature, then sintered and cooled. Teflon die-pressing plate (length ×
Width × thickness unit: mm) 1500 × 1500 × 3~350 × 350 × 100.
Of course, no matter what kind of process produced by PTFE products are widely used, with extremely superior comprehensive performance: high and low temperature resistance (-192 ℃-260 ℃), corrosion resistance (strong acid, strong alkali, aqua regia
, etc.), weather resistance, high insulation, high lubrication, non-adhesion, non-toxic and other excellent characteristics. Is one of the world's most corrosion-resistant materials, "plastic king" is commonly known as PTFE, it is a kind of corrosion-resistant
The best plastic. It is not known acid, alkali, salt, oxidant corrosion, is the aqua regia also helpless to it, so named plastic king, in addition to molten metal sodium and liquid fluorine, can withstand all other
Chemicals, widely used in a variety of need to resist acid and alkali and organic solvents, sealing, high lubrication and non-stickiness, electrical insulation and good anti-aging endurance, excellent temperature resistance (can be at 250 ℃ to -180 ℃
long-term work at temperature).
It has solved many problems in China's chemical, petroleum, pharmaceutical and other fields. PTFE seals, gaskets, gaskets, PTFE seals, sealing gaskets are selected suspension polymer poly four
Made of vinyl fluoride resin molding. Compared with other plastics, PTFE has the characteristics of chemical resistance, it has been widely used as a sealing material and filling material.
This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!
Key words:
PTFE, with, corrosion resistance, high and low temperature resistance, weather resistance, high lubrication, non-stick, performance
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