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What is fluorine gum?


Fluorine glue is a synthetic rubber containing fluorine atoms. It has excellent heat resistance, oxidation resistance, oil resistance and drug resistance. It is mainly used in aviation, chemical, petroleum, automotive and other industrial sectors, as sealing materials, dielectric materials and insulation materials. A synthetic rubber containing fluorine atoms in the molecular structure.

Usually expressed as the number of fluorine atoms in the copolymer containing fluorine units, such as fluororubber 23, is a copolymer of vinylidene fluoride and trichloroethylene. Fluorine rubber has high temperature resistance, oil resistance and chemical corrosion resistance.

Fluororubber 23, commonly known as 1 glue, is vinylidene fluoride and three fluorochloroethylene copolymer.

Fluororubber 26, commonly known as No. 2 adhesive, Dupont brand VITON A, is a copolymer of vinylidene fluoride and hexafluoropropylene, the comprehensive performance is better than No. 1 adhesive.

Fluorine rubber 246, commonly known as No. 3 adhesive, DuPont brand VITON B, is a vinylidene fluoride, tetrafluoroethylene, hexafluoropropylene terpolymer, fluorine content is higher than 26 adhesive, good solvent resistance.

Fluororubber TP, commonly known as tetrapropylene glue, Asahi brand AFLAS, tetrafluoroethylene and hydrocarbon propylene copolymer, water vapor resistance and alkali resistance superior.

VF rubber, DuPont brand VITON GLT, is a tetrafluoroethylene, tetrafluoroethylene, Perfluoromethyl vinyl ether, vulcanization point monomer quaternary copolymer, low temperature performance is excellent.

Perfluoroether rubber, DuPont brand KALREZ, has excellent low temperature performance, high fluorine content and excellent solvent resistance.

Fluorosilicone rubber has excellent performance at low temperature and has certain solvent resistance.

The main types of fluorine rubber are: fluorine rubber round, fluorine rubber round tube, fluorine rubber square, fluorine rubber profiled strip, fluorine rubber board and so on.

Fluorine rubber characteristics:

Fluorine glue is a white or amber translucent sheet elastomer, non-toxic, tasteless, non-flammable (self-extinguishing), with excellent heat resistance, oil resistance, chemical resistance, good physical and mechanical properties and weather resistance, can be melted in low molecular ketones and lipids.

1. withstand voltage: greater than 6.0KV

2. working temperature: -60+350oC

3. proportion: 2

4. hardness: 70 + 5

5. tensile strength: greater than 6.5

6. it has excellent oil resistance, solvent resistance, ozone resistance and corrosion resistance.

Fluorine rubber advantages:

1. Excellent high-temperature performance: temperature range from - 60 to + 250. Excellent oil resistance: high-temperature fuel oil, sulfur-containing lubricating oil, hydraulic oil, diester oil, silicate ester and other oils are superior to other rubber.

3. Excellent anti-corrosive medium and strong oxidant performance; the stability of strong corrosive medium such as fuming nitric acid, concentrated sulfuric acid, hydrochloric acid, hydrogen peroxide, concentrated alkali is superior to other rubber.

4. good mechanical properties, electrical insulation and anti radiation performance.

5. good resistance to high vacuum.

Applicable range of fluorine rubber:

1. Fluoroelastomer in damp water or temperature rise, the change is small, even if the short-circuit combustion of silicon dioxide is still an insulator, which ensures that electrical equipment continues to work, so the most suitable for making wires, cables, leads.

2. Fluorine hose can be used for all kinds of strong acid and alkali, steam, hot air, hot oil and other fluid transportation and sealing, but also can be used for household appliances, lighting, medical equipment; 3. Fluorine hose working pressure (0.5-3.0 MPa) can be added joints and stainless steel mesh cover protection layer.

4. fluorine adhesive tape is also used for harsh electric wire jackets in the working environment.

5. Fluorine rubber has outstanding high temperature and corrosion resistance, and has the reputation of the king of rubber. It can be processed into rubber hose, rubber cloth, film, gasket, (skeleton) oil seal, O-ring, V-ring and so on. It is widely used in aviation, automobile, petroleum, chemical industry, telecommunications, instrumentation and other fields.

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