PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Application of PTFE Film
Classification:
Industry dynamics
Author:
PFA tube little sister
Source:
PFA tube little sister
Release time:
2006-10-21
Visits:
1. everyone knows that the production of PTFE film and other plastic films is different, and the processing technology is also different. PTFE film has high insulation, corrosion resistance, heat resistance, cold resistance and aging resistance.
PTFE film is obtained by turning, is made of suspended PTFE resin by molding into tubular compacts, sintering in an oven, then cooling mature blanks, and then turning by lathes or cutting machines, so many people are called PTFE turning film. PTFE turning film should be wound flat, the end face is neat, the film surface can not have creases, cracks, holes, mechanical damage and other defects that affect the use requirements. The thickness tolerance shall be in accordance with the allowable range of the Ministry of Light Industry for QB4876-2015.
Polytetrafluoroethylene film car is a kind of non-directional film, the surface is a little dark, which is the same as the PTFE turning plate. In order to make the turning film molecules more closely, enhance its pressure resistance, and make the thickness of the turning film more uniform. We through the calendering method, the turning film reprocessing, production into directional film, calendered film molecular structure is compact, compressive strength increases, the surface is smooth and crisp, the appearance is more smooth, high density, translucent, or transparent. The thickness of the film made by the car is generally thicker, and thinner products can be obtained by calendering. Deviation in the calendering process will cause uneven film thickness. The non-oriented film is calendered 1.1-1.8 times as semi-oriented film.
The main purpose is to use PTFE film directional film to manufacture capacitors. Semi-directional film is used for wire insulation. Undirected film is used for wiring insulation of electrical appliances and meters or as sealing gasket material. It can also be used for debonding and demoulding materials, high-frequency heating cables, temperature-resistant wires in military industries such as aerospace and aviation, communication wires and cables and other high-tech cutting-edge technologies. PTFE oriented film has many specifications. When customized, it is necessary to produce turning film according to the specification requirements, and then carry out calendering orientation. The thickness of calendering delay cannot be too thick, otherwise the thickness cannot reach the required thickness. If the turning film is too thin, it will not play the role of calendering orientation. In addition, the temperature control of calender is also a very important factor. PTFE turning film is only within a certain temperature range, the operation is relatively easy and the quality is guaranteed. The two rollers are kept parallel to ensure that the oriented film thickness is uniform.
Figure 1: PTFE Film Source: Shenzhen Dankai
PTFE oriented film calendered PTFE film in the transport of packaging reliable, to prevent damage, impact, extrusion, sun, rain, the product should be stored in the extrusion, not directly exposed to sunlight in the clean warehouse. The appearance of pure polytetrafluoroethylene is pure white, easy to adsorb variegated substances, which affects the appearance and increases the workload of wiping and testing, and needs to be sealed for disposal.
2. Teflon has many uses.
Application of 2.1 anti-corrosion performance
Due to the defects of rubber, glass, metal alloy and other materials in the corrosion-resistant square rain, it is difficult to meet the harsh conditions of temperature, pressure and chemical medium coexistence environment, the resulting loss is quite amazing. The PTFE material with its excellent corrosion resistance has become the main corrosion resistant materials in petroleum, chemical, textile and other industries. Its specific applications include: conveying pipes, exhaust pipes, steam pipes for conveying corrosive gases, high-pressure oil pipes for steel rolling mills, Senior high school and low-pressure pipes for aircraft hydraulic systems and cold-pressure systems, fine towers, heat exchangers, kettles, towers, and tanks The performance of the linings, valves and other chemical equipment seals has a great influence on the efficiency and performance of the entire machinery and equipment. Such as machine, heat exchanger, high pressure vessel, large diameter container, pump groove flange seal, glass reaction pot, flat flange, large diameter flange seal, shaft, piston rod, valve wheel pump seal and so on.
Figure 2: PTFE tube Source: Shenzhen Dankai
Application of 2.2 low friction performance in load
Because the friction part of some equipment is not suitable for lubrication, for example, when lubricating grease is dissolved by solvent and fails, or products in papermaking, pharmaceutical, food, textile and other industrial fields need to be free from lubricating oil, this makes PTFE filling material the most ideal material for oil-free lubrication (direct load bearing) of mechanical equipment parts. In civil construction engineering, it is widely used as a bridge, channel, steel structure roof truss, large chemical pipeline, storage and over-the-day collection and addition.
Application of 2.3 in Electrical and Electronic
The inherent low loss and small dielectric constant of PTFE material enable it to be made into enameled wires for micro motors, thermocouple control devices, etc. PIHE Pu film is an ideal insulating material for manufacturing capacitors, radio insulating gaskets, insulating cables, motors and transformers, and is also one of the indispensable materials for industrial electronic components such as aerospace. It can be used to manufacture oxygen sensors and utilize the characteristics of polar charge deviation of fluorine plastics under high temperature and high pressure, microphones, speakers, parts on robots, etc. can be manufactured; using its low refractive index characteristics, optical fibers can be manufactured.
Shenzhen Dankai Technology Co., Ltd. (ShenZhen DanKai Technology Co., Ltd.), whose predecessor was the Fluoroplastic Material Factory of Dongguan Dandi Insulation Material Co., Ltd. established in 1998, specializes in the research and development, production and sales of FEP, PFA, PTFE and other fluoroplastic tube rod sheet membrane products and other insulation materials. The company has international standards of senior R & D team and the introduction of foreign fluorine plastic products production line. Some fluoroplastic products through ISO9001, SGS, FDA certification, Huawei, Foxconn, the United States, ZTE, Intel, AirTAC and other domestic and foreign cooperation customers fully affirmed. The company's main products are: ① pipes: Ptfe pipes, Fep pipes, Pfa pipes, Pvdf pipes; ② Heat shrinkable tubes: Ptfe heat shrinkable tubes, Fep heat shrinkable tubes, Pfa heat shrinkable tubes, Pvdf heat shrinkable tubes; ③ Plate rod film: Ptfe plate rod film, Feep plate rod film, Pfa plate rod film, Pvdf plate rod film, etc. PE: PE, special, spiral tube, spring tube, rotary cutting tube, welding rod, tee, straight, gasket, joint, cone rod, flared tube, sealing tube, braided tube, corrugated tube, etc. At the same time can be customized according to customer requirements processing production of various specifications of fluorine plastic products.
Key words:
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