PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Varieties and Application of Teflon PTFE
Classification:
Industry dynamics
Author:
PFA tube little sister
Source:
Dankai
Release time:
2022-12-19
Visits:
1. varieties of Teflon PTFE
Teflon PTFE has three categories to supply the market, namely suspension resin, dispersion resin and concentrated dispersion. In the application, the consumption of the three categories varies from country to country and is currently suspended.
Float resin accounts for about 50 ~ 60%, dispersion resin accounts for about 20 ~ 35%, concentrated dispersion solution accounts for about 10 ~ 20%.
Suspension method Teflon is mainly used in the manufacture of mechanical industry with seals, gaskets, etc., as well as chemical equipment with pumps, valves, pipe fittings and equipment lining. In addition, electric power is also manufactured.
Edge parts, films, etc.
Teflon concentrated dispersion is mainly used for food, textile, printing and dyeing, paper and other industries in the anti-adhesive coating and impregnated glass cloth, asbestos and so on.
With the widespread application of automated and continuous processing technology innovations such as automatic molding, hydraulic molding, and plunger molding, as well as the development of Teflon PTFE applications, its new products
The grades keep appearing.
In China, Teflon has been used in the military industry since the 1960 s, and has successively developed molding, push and equal pressure molding, surface treatment, welding and lining, plunger extrusion, spraying and
Impregnation technology, rotational molding and rubber-plastic composite technology, bulk molding and electroless plating technology.
In the 1980 s, Teflon was popularized on a large scale in the civil field. After years of development, the maximum number of domestic molded plates can reach 18*18m2, and the molded blank car for turning plates can be used.
Cutting up to 15m, turning up to 2m with isopressure forming blank, plunger extrusion pipe diameter up to 250mm, bar direct 6100mm; Teflon film has colored film,
Orientation, turning film, etc., the maximum width can reach 1m, the thinnest can reach 0.02mm, and the maximum width of impregnated glass cloth can reach 42m; Biaxially stretched Teflon film, which can be used in electronics and pharmaceuticals
Ultra-pure reagent filtration in other industries; After it is compounded with fabric, it can be made into waterproof and perspective clothing fabric and ultra-filtration material, with a maximum width of 2m in China.
In addition to the traditional graphite and glass fiber, liquid polymers and nano materials modified Teflon have made many gratifying achievements. Secondary molding products
Such as bellows, heat shrinkable tubes and other domestic production, secondary molding products need special technology and specific processing equipment to obtain, high technical content, large added value, and a lot
development space.
Application of 2. Filled PTFE Products
Polytetrafluoroethylene (PTFE) has a very high molecular weight (8.8 × 106~3.2 × 107), which is a thermoplastic with high crystallinity. Due to the strong F-C bond in its molecular structure, it has
It has the advantages of low friction coefficient, good chemical stability and thermal stability, so it has been widely used in all walks of life. However, pure PTFE is not wear-resistant, poor mechanical properties,
Easy to creep, filled with PTFE can completely enhance these properties of pure PTFE products. can be better applied.
The filled polytetrafluoroethylene product is made of filled polytetrafluoroethylene resin by molding. Suspension polymerization PTFE resin mixed with various fillers filled with PTFE
Resin. 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 large-scale
in production. Compared with pure PTFE, filled PTFE has the advantages of higher compression strength, wear resistance, good thermal conductivity and reduced thermal expansion.
PTFE filled graphite, carbon fiber and copper powder, molybdenum disulfide processing. With higher temperature and wear resistance, PTFE products with fillers are widely used in chemical
industrial, electrical, power industry. The PTFE filling products produced by Donghong Company are the first in the industry in terms of environmental protection and electrical performance. Is relying on their own strength excellent
Potential, and many well-known domestic precision processing enterprises to cooperate to manufacture excellent PTFE (Teflon, Teflon) insulation devices. Donghong Company can produce each according to customer drawings.
Class polytetrafluoroethylene special-shaped parts, welcome to call for advice. Professional PTFE finishing products production.
PTFE high-frequency insulator products have the advantages of good surface finish, good insulation performance and high electrical breakdown strength, and are suitable for high-frequency coaxial connectors, adapters, attenuators and terminals.
mixer, distributor, computer network devices and a variety of active passive microwave communication devices and other supporting. High speed, high precision, high quality, high efficiency.
Application and composition of 3. PTFE pipe
PTFE pipes are generally used for various fluid transportation and fuel pipelines with high corrosion resistance requirements. PTFE PTFE tube consists of three parts: one is PTFE dispersion
The inner tube (straight tube) pushed by resin, the second is the braided reinforcement layer of stainless steel wire or other fibers outside the inner tube of polytetrafluoroethylene, and the third is the gold buckled at both ends of the tube for connection.
It is a joint.
Generally, the inner diameter of PTFE pipe is from φ 6 to φ 50mm, the medium pressure pipe with a pressure resistance of 10.5MPa is called, and the high pressure pipe with a pressure resistance of 21MPa is called.
Teflon pipes are used to transmit corrosive liquids or gases, such as hydraulic fluids and fuel transportation in the aerospace industry; high-pressure air and fuel in the automotive industry
And hydraulic transmission; chemical industry chlorine, steam, acid and alkali organic transport; pharmaceutical industry high purity fluid transport and so on. Because PTFE has plastic
The best high and low temperature resistance, corrosion resistance, aging resistance, high insulation and non-stickiness, etc., so the pressure hose processed by PTFE is becoming more and more cutting-edge in aerospace.
favored by the industrial sector.
The quality of the PTFE tube is determined by the PTFE inner tube, the braided reinforcement layer and the metal joint. Any problem in any one of them will cause the PTFE tube to flow.
The body leaks or even ruptures and fails.
This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!
Key words:
PTFE, Teflon, filling, molding, resin, products, good surface finish, good insulation performance
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