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What is the main performance of FEP transparent tube?
- Categories:Industry news
- Author:FEP tube lady
- Origin:FEP tube lady
- Time of issue:2008-04-19 15:21
- Views:
What is the main performance of FEP transparent tube?
- Categories:Industry news
- Author:FEP tube lady
- Origin:FEP tube lady
- Time of issue:2008-04-19 15:21
- Views:
1. Introduction to FEP
The full name of FEP is Fluorinated ethylene propylene, which translates to fluorinated ethylene propylene copolymer (perfluoroethylene propylene copolymer). The English trade name: Teflon* FEP, is a class of chemical substances. FEP is a copolymer of tetrafluoroethylene and hexafluoropropylene. The melting point of FEP crystal is 304°C and the density is 2.15g/CC (grams/cubic centimeter). FEP can be applied to soft plastics, and its tensile strength, wear resistance, and creep resistance are lower than many engineering plastics.
Two, FEP tube introduction
1. Performance and parameters
Volume resistance>1018ΩM, surface resistance>1013Ω, arc resistance>165 seconds, no leakage; low friction coefficient of dynamic friction: 0.2-0.3; non-stickiness, water resistance, oil water contact angle θ=114о; non-combustibility, will not burn in the air (Oxygen index>95VOL%), the shrinkage ratio is 1.7:1.
2. Features
Temperature resistant, F46, FEP heat shrinkable tube: -200--200℃
Fusible polytetrafluoroethylene (PFA) heat shrinkable tube: -200--250℃
Corrosion resistance is only elemental fluorine at high temperature. Alkali metals have an effect on it, and have no effect on all other concentrated and dilute inorganic organic acids, alkalis, and esters.
3. Application
Teflon FEP heat-shrinkable tube has outstanding wear resistance, chemical corrosion resistance and high temperature performance, especially suitable for high temperature performance occasions, used for insulation protection and pressure relief at connection welds and identification of coated components.
Figure 1 Source of fep tube: Miss Teflon tube
Three, Fep tube characteristics
1. High and low temperature resistance: working temperature -200℃~+200℃, strength twice as much as F4.
2. It is non-sticky, fights water and oil, no fouling on the inside and outside of the pipe wall, no flow, very low friction coefficient;
3. Electrical reliability, low dielectric constant (insulation), high insulation, 601HZ-60MH high and low temperature dielectric constant viscosity is 2.1. Even if the surface is damaged by diving, it will not conduct electricity; track volume resistance> 10180M surface resistance> 2*10130M; arc resistance> 165 seconds without leakage.
4. Corrosion resistance: only elemental fluorine at high temperature, alkali metals and it work, it has no effect on all other concentrated and dilute inorganic organic acids, alkalis, and esters; chemically inert;
5. Low water absorption, low absorption rate <0.01%;
6. Non-combustibility, will not burn in the air (oxygen index>95V0L%), non-toxic and physiologically inert;
7. High transparency, the lowest light refractive index among all plastics; transparent hose; weather resistance: long-term exposure to ozone and sunlight, anti-ultraviolet (not aging);
8. Ease of secondary processing: self-sealing, self-welding, flanging, and coiled pipes can be made.
4. Summary of common problems of FEP tube
1. Fep tube manufacturer:
Teflon tube for Miss Sister's house and so on.
2. What is the fep tube:
Polyperfluoroethylene propylene (F46, FEP) heat shrinkable tube.
3. Fep tube extrusion molding:
FEP, like other fusible fluoroplastics, uses common methods for hot molding, die-casting and extrusion (vacuum and air pressure molding). In standard equipment, all molded parts in contact with molten fluoroplastics should be made of corrosion-resistant alloys. FEP processing molding technology manufacturer Shenzhen Dankai.
4. What industry is the fep tube used for:
The scope of application of FEP is the same as that of PTFE. It is used in electrical, radio, electronics, chemical industry, machinery manufacturing, refrigeration, medicine and other industrial sectors.
5. The use of fep tube:
FEP is used as thin-film printing boards, wire and cable insulation, generator wire windings, electrical insulation parts (sheets, rods, tubes, frames and insulators), corrosion-resistant structural products (oil-free mechanical parts), paints and varnished glass cloth. Excellent corrosion resistance makes it used in chemical work equipment, heat exchangers, fractionation towers, pumps, valves, tubes, seals, tube linings, laboratory transparent utensils, etc. FEP extruded thin-walled pipes are used in heat exchangers and are suitable for heating and cooling highly corrosive liquids in the range of -200 to 200°C.
Five, FEP tube common specifications, FEP tube specifications
Common specifications: inner diameter * outer diameter (unit: mm)
Metric system: 2*4 3*5 4*6 5*7 6*8 8*10 8*12 9*12 10*12 12*1414*16 16*18 18*20
British system: 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 specifications can be produced, the inner diameter is 0.5mm to 200mm, and the wall thickness is 0.12mm to 3mm.
My sister’s home with Teflon tube, Shenzhen DanKai Technology Co.,ltd., whose predecessor was Dongguan Dandi Insulation Material Co., Ltd. Fluoroplastic Material Factory, which was established in 1998, specializes in FEP, R&D, production and sales of PFA, PTFE and other fluoroplastic tube, rod, sheet and film products and other insulating materials. The company has a senior R&D team with international standards and a production line of fluorine plastic products imported from abroad. Some fluoroplastic products have passed ISO9001, SGS, FDA certification, and have been fully affirmed by domestic and foreign cooperative customers such as Huawei, Foxconn, Midea, ZTE, Intel, and AirTAC. The main products of the company are: ①Tubes: Ptfe tube, Fep tube, Pfa tube, Pvdf tube; ②Heat shrinkable tube: Ptfe heat shrinkable tube, Fep heat shrinkable tube, Pfa heat shrinkable tube, Pvdf heat shrinkable tube; ③Plate rod Membrane: Ptfe board and rod film, Fep board and rod film, Pfa board and rod film, Pvdf board and rod film; ④Insulation materials: silica gel, PE, PVC, UPE, etc.; ⑤Special category: PFA imported connector, spiral tube, spring tube , Rotary cut tube, welding rod, tee, straight-through, gasket, joint, taper rod, flared tube, sealing tube, braided tube, bellows, etc. At the same time, fluorine plastic products of various specifications can be customized and processed according to customer requirements.
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