WHAT KIND OF MATERIALS ARE MOSTLY USED TO PRODUCE HOSES?

1. Butyl Rubber (NBR)

The copolymer of butadiene and acrylonitrile. Characterized by particularly good resistance to gasoline and aliphatic hydrocarbon oils, second only to polysulfide rubber, acrylate, and fluorine rubber, and better than other general-purpose rubber. It has good heat resistance, air tightness, abrasion resistance and water resistance, etc., and strong adhesion. The disadvantages are poor cold resistance and ozone resistance, low strength and elasticity, poor acid resistance, poor electrical insulation, and poor resistance to polar solvents. Use temperature range: about -30℃~+100℃. Mainly used in the manufacture of various oil-resistant products, such as hoses, sealing products, etc.

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2. Ethylene Propylene Rubber (EPMEPDM)

The copolymer of ethylene and propylene is generally divided into binary ethylene propylene rubber and tertiary ethylene propylene rubber. It is characterized by excellent ozone resistance, ultraviolet resistance, weather resistance, and aging resistance, and ranks first among general-purpose rubbers. Electrical insulation, chemical resistance, impact elasticity is very good, acid and alkali resistance, and small specific gravity can be a high filler fit. Heat resistance up to 150 ℃, resistance to polar solvents - ketones, esters, etc., but not aliphatic hydrocarbons and aromatic hydrocarbons, other physical and mechanical properties slightly inferior to natural rubber and better than SBR. The disadvantage is that the self-adhesive and mutual adhesion is very poor, and not easy to bond. Use temperature range: about -50℃~+150℃. Mainly used as chemical equipment lining, wire and cable covering, steam hose, heat-resistant transport belt, rubber products for automobiles, and other industrial products.

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3. Fluorine Rubber (FPM)

It is an organic elastomer made of fluorine-containing monomer copolymer. Its characteristics of high-temperature resistance up to 300 ℃, acid and alkali resistance, oil resistance the best oil-resistant rubber, radiation resistance, good resistance to high vacuum performance; electrical insulation, mechanical properties, chemical corrosion resistance, ozone resistance, atmospheric aging resistance are excellent. The disadvantages are poor processability, expensive poor cold resistance, low elasticity, and breathability. Use temperature range: -20 ℃ ~ +200 ℃. Mainly used in the defense industry manufacturing aircraft, rockets in the vacuum, high temperature, chemical corrosion resistant sealing materials, hoses or other parts, and automotive industry.

4. Hydrogenated nitrile rubber (HNBR)

The copolymer of butadiene and acrylonitrile. It is obtained by fully or partially hydrogenating the double bond in the butadiene of NBR. It is characterized by high mechanical strength and abrasion resistance, better heat resistance than NBR when cross-linked with peroxide, and other properties like nitrile rubber. The disadvantage is that the price is higher. Use temperature range: about -30℃~+150℃. It is mainly used for oil and high-temperature resistant sealing products.

5. Silicone rubber (Q)

It is a special rubber with silicon and oxygen atoms in the main chain, in which the main role is played by silicon elements. Its main feature is both high-temperature resistance (up to 300 ℃) and low-temperature resistance (minimum -100 ℃), is the best cold and high-temperature resistant rubber; at the same time, excellent electrical insulation, high stability to thermal oxidation, and ozone, chemical inertia. The disadvantages are low mechanical strength, poor oil resistance, solvent resistance and acid and alkali resistance, difficulty to vulcanize, and is expensive. Use temperature: -60℃~+200℃. It is mainly used for making high and low-temperature resistant products (hoses, seals, etc.), high-temperature resistant wire and cable insulation, and is also used in food and medical industries because it is non-toxic and tasteless.