Fluoroplastics is a general term for various fluoropolymers. It refers to a polymer composed of monomers containing fluorine atoms or copolymerized with other materials that do not contain fluorine. Due to the excellent electrical properties of fluoroplastics,

 

Thermal stability and mechanical physical properties, so it is suitable for wire and cable. In order to facilitate everyone to further understand the fluorine plastic cable and help the future work, the fluorine plastic cable is now

 

A brief introduction to its market application.

 

Features of fluorine plastic cable

Compared with the common polyethylene PVC cable, fluorine plastic cable has the following outstanding characteristics:

 

1. High temperature resistant fluoroplastics have extraordinary thermal stability, making fluoroplastic cables adapt to high temperature environments of 150~200 degrees, while common polyethylene and polyvinyl chloride cables are only suitable for 70~90 degrees.

 

The working environment. In addition, under the condition of the same cross-section conductor, the fluorine plastic cable can transmit a larger allowable current, which greatly improves the scope of use of the cable. Due to this unique performance,

 

Fluorine plastic cable is often used in aircraft, ships, high temperature furnace and electronic equipment internal wiring, lead wiring, etc.

2, good flame retardant fluorine plastic oxygen index is high, the flame spread range is small, the amount of smoke produced is small. The cables made with them are suitable for places with strict flame retardancy requirements, such as computer networks,

 

In public places such as subways, vehicles, high-rise buildings, etc., in the event of a fire, people can have a certain amount of time to be alienated without being smoked by the smoke, and gain precious rescue time.

3. Excellent electrical performance Compared with polyethylene, the dielectric constant of fluoroplastic is lower. Therefore, compared with the coaxial cable of the same structure, the attenuation of fluoroplastic cable is smaller and more suitable for high-frequency signals.

 

Transmission, the use of today's cable frequency is getting higher and higher has become a trend, at the same time because of the fluorine plastic can withstand high temperatures, so it is often used for transmission communication equipment internal wiring, wireless transmission feeder and transmitter.

 

between the jumper and the video audio line. In addition, fluorine plastic cable dielectric strength, good insulation resistance, suitable for important instrument control cable.

4. Perfect mechanical and chemical properties Fluoroplastics have high chemical properties, high stability, almost unaffected by temperature changes, excellent weathering resistance and mechanical strength;

 

A variety of acids, alkalis and organic solvents, so it is suitable for environmental climate change, corrosive occasions, such as petrochemical, oil refining, oil well instrument control.

5, conducive to welding wiring in electronic instruments, there are a lot of wiring is connected by welding method, due to the general plastic melting temperature is low, easy to melt at high temperature, need skilled welding skills

 

Some solder joints must have a certain welding time, which has also become the reason for the popularity of fluoroplastic cables, such as the internal wiring of communication equipment and electronic instruments.

6. The price of fluoroplastic raw materials is high, the production of cables is difficult, and the production cost is high, and the sales price is naturally high, which also limits the application of products. However, because of this, there are few competitive manufacturers,

 

Customers who need to use fluorine plastic cables will not count the price factor too much.

 

Figure 1: Teflon tube Source: Dan Kai

 

Types and uses of fluorine plastic cables

A variety of fluoroplastics can be used as cable insulation. According to the current market situation, the common fluorine plastic cable is fluorine -46(FEP) cable. Fluorine -46 is the abbreviation of polyethylene glycol, also known as FEP, is a

 

A fluoroplastic with excellent performance, the maximum continuous working temperature can reach 200 degrees, the short-term use temperature can reach 260 degrees, the oxygen index is greater than 95, almost non-flammable, and the dielectric constant is small, the media loss angle is positive.

 

Low cut, electrical properties in a wide range of temperature changes almost no change, and it can be similar to polyethylene extrusion method to make cables, so welcomed by all aspects.

Fluorine plastic cable can be made into two forms of solid core insulation, of which physical foam fluorine plastic cable has been produced and used abroad, and is still in the process of development in China. What we call fluorine plastic cable at ordinary times

 

Usually refers to the solid core fluorine plastic cable.

 

 

Figure 2: Teflon tube Source: Dankai

 

Fluorine plastic cable has three common forms: single-core cable, coaxial cable, multi-core cable.

1. Single-core cable or high-temperature wire, its structure is that the inner conductor is single or multi-strand copper wire (tinned copper wire), the outer diameter of the conductor is 0.4~2.0MM, the insulation is fluoroplastic, and the thickness of the insulation layer is

 

0.3~0.5MM, commonly used for aviation wires, electronic and electrical equipment wiring and lighting lines for special occasions.

2. The inner conductor of coaxial cable is single or multiple strands of copper lead (tinned copper silver copper wire), with a diameter of 1.25~1.6MM. There are three insulation forms: A, fluoroplastic insulation, with a thickness of 0.5~0.7MM,B,

 

Fluorine plastic foam insulation, the thickness is 2.5~3.0MM,C, fluorine plastic and polyethylene combination insulation, that is, the inner layer is insulated with fluorine plastic, the outer layer is insulated with polyethylene, wherein the thickness of fluorine plastic is

 

0.04~0.07MM. It is worth mentioning that the coaxial cable insulated by the combination of fluorine plastic and polyethylene combines the advantages of product performance and material cost, and is worth promoting. This type of cable is commonly used

 

As the connection line of RF cable and electronic equipment.

3, multi-core cable will be single-core wire or coaxial cable twisted together, easy for multi-core cable. Among them, there are pairs and non-pairs, which are used for industrial computer control and automation instrumentation.

 

Control, for special occasions of five types, super five types of cables, data transmission, audio and video transmission, etc., also use this fluorine plastic cable.

 

 

Figure 3: Teflon tube Source: Dankai

 

It should be noted that fluoroplastic cables have different forms of sheath, usually in high temperature working environment and special environment using fluoroplastic sheath, in only the electrical performance requirements and the ambient temperature is general, then

 

Low smoke halogen flame retardant PVC sheath can be used, which can greatly reduce production costs and improve the market competitiveness of products.

Market development direction

Due to the excellent high-frequency dielectric properties and heat-resistant flame retardant properties of this cable, it can be used in computer local area networks and radio frequency signal transmission. Cables with PE or PVC insulation in accordance with US safety requirements

 

When installed in the indoor pressure ventilation layer, it must be laid through the metal pipe, while the fluorine plastic cable can be installed directly, thus having various advantages such as beauty, safety, flexible wiring, etc., which can be used in high-grade

 

The office space shows its hands. These products are distribution lines, telephone lines, data transmission lines and so on. Obviously, the elevator, fire control cable, more suitable for fluorine plastic cable.

In 1997, the Ministry of Posts and Telecommunications has formulated the standard "Radio Frequency Coaxial Cable for Digital Office". The standard stipulates that the cable is insulated by a combination of fluoroplastic and polyethylene and is used as wiring within the transmission digital office

 

In the transmission of telephone, data, television and other communication services or other communication equipment using similar technology, therefore, communication equipment manufacturers and electronic equipment manufacturers are the focus of our market work.

In addition to being used as high-temperature conductors and well logging cables, fluoroplastic cables have been used more and more in industrial automation control.

 

It's a good choice.

In addition, fluorine plastic cable because of its flame retardant and less smoke when burning, can be widely used in high-rise buildings, underground shopping malls, tunnels, hotels, hospitals within the general wiring.

This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!