PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Analysis on Characteristics of Polytetrafluoroethylene Molded Tube
Classification:
Industry dynamics
Author:
Teflon tube little sister
Source:
Teflon tube little sister
Release time:
2010-01-12
Visits:
Introduction of 1. PTFE
Polytetrafluoroethylene, commonly known as "plastic king", is a polymer made by polymerization of tetrafluoroethylene as a monomer. White waxy, translucent, heat resistance, excellent cold resistance, can be in -180~260°C long-term use. This material has the characteristics of acid and alkali resistance, resistance to various organic solvents, and is almost insoluble in all solvents. By adding carbon, graphite, glass and other additives, the performance of polytetrafluoroethylene can be improved.
Brief Introduction of 2. PTFE Molded Pipe
The main performance of PTFE pipe
1. Excellent chemical resistance;
2. Working temperature -190 ℃ to 260 ℃;
3, the strongest anti-fatigue ability (Wheeler curve);
(4) FDA approval;
5. Flame Retardant-UL94V0;
(6) No insistence;
7. Low friction coefficient;
UV resistance (no aging);
8. No moisture absorption (water absorption rate <0,01%);
9. Very good dielectric insulation performance.
Figure 1 PTFE molded tube source: Teflon tube little sister
3. PTFE molded tube features:
1. There are three kinds of PTFE pipes:
The outer diameter of 1mm-25mm, wall thickness of 0.1 mm-2.5mm pipe selection of imported dispersion polymerization PTFE resin by paste pressing processing;
The tube with outer diameter of 25mm-200mm and wall thickness of 1.5mm-8mm is made of suspended polytetrafluoroethylene resin by plunger extrusion;
A pipe having an outer diameter of 25mm to 1200mm and a wall thickness of 5mm to 500mm is molded.
2. Application of PTFE molded pipe: wire insulation sheath, corrosive fluid medium pipeline, electrical insulation parts used under various high frequencies, etc.
3. Specification of PTFE molded pipe:
Fig. 2 specification table of polytetrafluoroethylene molded tube source: teflon tube little sister
4. the difference between PTFE molded tube, extrusion tube and filling tube
1. The manufacturing process is different:
(a) PTFE molded tube is extruded using a high-quality plunger process, using a special processing technology, so that the steel pipe and the plastic pipe are closely combined, the appearance is fine, the structure is fine, and the strength is high without mechanical impurities.
(B) PTFE extrusion tube is made of suspension polymerization PTFE resin by plunger extrusion processing.
(c) PTFE filled pipe is made of PTFE filled resin by molding. The suspension polymerized polytetrafluoroethylene resin is mixed with various fillers to form a filled polytetrafluoroethylene resin.
2. Different characteristics and uses:
(a) PTFE molded pipe has corrosive medium fluid pipeline, insulating sheath and drive shaft package. Transporting strong corrosive gases and liquids at high temperatures, which cannot be replaced by other pipelines. Can be used to connect the mechanical lower graphite, ceramic or glass pipes, can be used for tankers, storage tanks, containers or reaction kettle feed, discharge pipe, can be used for pipeline dislocation connection or used to balance the pipeline displacement caused by climate or other reasons, dimensional changes or used to eliminate the vibration of high frequency machinery. It can also be used as a tubular reactor or heat exchanger on special occasions.
(B) PTFE extruded tubes have the best chemical resistance and dielectric properties. Suitable for conveying food and beverage, steam, chemicals/drugs, etc. It is used to transport hydraulic fluid in the aerospace industry, such as pressure pipes used for high-speed fuel delivery in spacecraft such as jets and rockets. High-pressure air in the automobile industry, the transportation of strong corrosive media in the chemical industry, and the passage of high-purity fluids in the pharmaceutical industry. In the civil industry, it is suitable for rubber, plastics, pharmaceuticals, clothing, shipbuilding, automobiles, machine tools, welding machines, diesel engines, paper and other industries for hydraulic, steam pressure, steam transmission and other soft connectors.
(c) PTFE filled tube A variety of fillers suitable for mixing with PTFE include glass fiber, carbon fiber, tin bronze and lubricants (such as graphite, molybdenum disulfide) and have been widely used in mass production. Compared with pure PTFE, filled PTFE has the advantages of higher compression strength, wear resistance, good thermal conductivity and reduced thermal expansion.
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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