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PTFE plate appearance standards and technical parameters and what are the characteristics Nov 07, 2018

Tetrafluoride board, which is a common and commonly used sheet, has many applications, from the current point of view. Therefore, it is necessary to have a certain understanding and understanding of this kind of plate, because only in this way, can we know what it is and how to use it correctly and rationally, and then make the best use of it, play the role and function of the PTFE plate.


What is a PTFE plate? The correct answer to this question is:

A PTFE plate, which is a plate obtained by some production process of a material of polytetrafluoroethylene, specifically, a material of polytetrafluoroethylene resin. However, since the PTFE plate is divided into a molded plate and a turning plate, they are also different in process. The molding plate is formed by molding a polytetrafluoroethylene resin at a normal temperature, and then sintered and cooled. The turning plate is formed by compacting, sintering and rotary cutting of a polytetrafluoroethylene resin.


1. Application and characteristics of PTFE plates

The application of PTFE plates is very extensive from the current point of view and can be used in industries and fields such as atomic energy, aerospace, electronics, electrical, chemical, machinery, instrumentation, construction, textile and food, as high temperature resistance and resistance. Corrosion and insulation materials are used.


The characteristics of the PTFE plate are mainly to be able to withstand high temperature and low temperature, the high temperature can reach 250 ° C, and the low temperature can reach -196 ° C. In addition, it has good corrosion resistance, weather resistance and good lubrication and non-stick properties. Its outstanding feature is that it is hardly corroded by any chemical reagents, such as boiled in concentrated sulfuric acid, nitric acid, hydrochloric acid or even in aqua regia, does not change, and is almost insoluble in any solvent.


2. Material advantages of PTFE plates

High temperature resistance: It can withstand high temperatures of 250 °C in the ambient temperature.

Low temperature resistance: Due to good mechanical properties, even at temperatures down to -196 ° C, 5% elongation can be maintained.

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

Weather resistance: In plastics, it has a long aging life.

High lubrication: its low friction coefficient, so it has good self-lubricating properties.

Non-adhesive: Because it has a small surface tension, it does not adhere to any substance.


3. Appearance standards and technical parameters of PTFE plates

The appearance standard of the PTFE plate is: the color of the plate is the natural color of the resin, and the texture is uniform and the appearance is flat. Cracks, bubbles, delamination, knife marks and mechanical damage are not allowed, but slight clouds are allowed. Patchy elastic phenomenon. The technical parameters of the PTFE plate are eight parameters of density, bending strength, tensile strength, friction coefficient, water absorption, dielectric strength, use temperature and melting temperature.