PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Briefly describe the differences between ptfe and fep.
Classification:
Industry dynamics
Author:
PFA tube little sister
Source:
PFA tube little sister
Release time:
1999-08-10
Visits:
1. the difference between F4 and F46. Speaking of the difference between F4 and F46, I have to introduce what F4 and F46 are first. Then from the product itself and its functions and applications to teach you to distinguish.
First to introduce F4
Abbreviation: PTFE
Chinese name: polytetrafluoroethylene
Chinese alias: PTFE/Teflon/Teflon/Teflon/Teflon/4F/Plastic King
English name: Polytetrafluoroethylene (abbreviated as Teflon or [PTFE,F4])
There is a kind of material called polytetrafluoroethylene in chemistry. The molecular formula is (C2F4)n,F is short for fluorine in the periodic table of chemical elements. From this, it can be easily inferred that F4 is short for polytetrafluoroethylene. Star chasers should not confuse this F4 with that "F4.
F4 this material has the characteristics of acid and alkali resistance, resistance to various organic solvents, almost insoluble in all solvents, therefore, F4 insoluble sealing can not be welded.
PTFE has the characteristics of high temperature resistance, high temperature can reach 260 ℃, the friction coefficient of PTFE is very low, so for lubrication, but also become an ideal coating for easy cleaning water pipe inner layer.
Figure 1: PTFE tube Source: Shenzhen Dankai
F46
F-46 polyethylene glycol propylene is a kind of fluorine plastic developed to overcome the shortcomings of poor processing and molding performance of polytetrafluoroethylene.
It is a copolymer of polytetrafluoroethylene (F4) and polyhexafluoropropylene (F-6). Polytetrafluoroethylene (F4) is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. The famous application of polytetrafluoroethylene (F4) is the exterior wall material of the Water Cube, which is used in a large area in the world.
F-46 high temperature resistance is 200 ℃, in addition to the use temperature is slightly lower than the PTFE (F4), almost all of its excellent performance. Polyfluoroethylene propylene (F-46)F-46 soluble, can be sealed, can be welded, thermal fluidity, can be used in general thermoplastic processing methods, molding, extrusion, injection molding, etc., can also be made into anti-corrosion coating.
Therefore, in the petrochemical anti-corrosion engineering, F-46 is widely used.
To sum up, F4 and F46 have two different points
1. High temperature resistance
F4 high temperature resistance 260 ℃
F46 High temperature resistance 200 ℃
2. Different solubility
F4 insoluble, non-sealable, non-weldable
F46 soluble, sealable, weldable
FEPtube manufacturer
2. FEP Name: Fep Tube, F46 Tube, Transparent Teflon Tube, PEF Tube, Teflon Tubing
Color:
Commonly used color: transparent, black;
Not commonly used color: yellow, brown, green, blue
Characteristics
Common features:
Use temperature:-200 degrees to 200 degrees
Easy processing: can flanging, welding
Aging resistance: can be exposed to ozone and sunlight for a long time without aging
Common specifications: inner diameter * outer diameter (unit: mm)
Metric: 2*4 3*5 4*6 5*7 6*8 8*10 8*12 9*12 10*12
12*14 14*16 16*18 18*20 20*22
Imperial: 1/8 inch (1.6*3.2) 1/4 inch (3.96*6.35) 3/8 inch (6.35*9.525)
1/2 inch (9.5*12.7) 3/4 inch (15.88*19.05) 1 inch (22.2*25.4)
Other producible specifications, inner diameter 0.5mm to 200mm, wall thickness 0.12mm to 3mm
What is FEP 3.?
Many traders only know that FEP tube is a straight tube when they ask customers. What is FEP used for? Where is FEP used? What material is FEP made of? I don't know anything about it. Now Shenzhen Dankai gives you these common sense science popularization.
Figure 2:FEP tube Source: Shenzhen Dankai
FEP full name Fluorinated ethylene propylene, translated as fluorinated ethylene propylene copolymer (perfluorinated ethylene propylene copolymer) English trade name: Teflon. FEP, is a class of chemical substances. FEP is a copolymer of tetrafluoroethylene and hexafluoropropylene. The FEP crystals had a melting point of 304 ° C. and a density of 2.15g/cc.
FEP does not ignite and can prevent the spread of flame. It has excellent wear resistance and low friction coefficient, which can be used from low temperature to 392F. The material can be made into granular products for extrusion and molding, as powders for fluidized beds and electrostatic finishes, and also into aqueous dispersions.
FEP can be applied to soft plastics, the tensile strength, wear resistance, creep resistance is lower than many engineering plastics. It is chemically inert and has a low dielectric constant over a wide range of temperatures and frequencies.
FEP has excellent wear resistance and low friction coefficient, which can be used from low temperature to 392F. The material can be made into granular products for extrusion and molding, as powders for fluidized beds and electrostatic finishes, and also into aqueous dispersions. Semi-finished products have film, plate. Rods and single fibers. FEP films have been used as thin coatings for solar collectors.
Polyfluoroethylene propylene resin (FEP) has similar characteristics with polytetrafluoroethylene (PTFE), and has a good processing technology of thermoplastic plastics, which makes it an important material to replace polytetrafluoroethylene. F-46 (polyethylene glycol propylene) in the production of wire and cable is widely used in high temperature and high frequency of electronic equipment transmission line, electronic computer internal connection line, aerospace wire, and other special purpose installation line, oil mine logging cable, submersible motor winding line, micro motor lead wire and so on.
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.
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