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Knowledge of rubber material classification

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发布日期:2017-07-21 18:18:44【 Browse: -Release date: 2017-07-21 18:18:44 [Large Middle Small]

I believe everyone will be familiar with rubber products, such as the soles of our shoes, the door and window seals of automobiles, etc., but do you know which rubber materials these rubber products are made of? Today Yongyong Silicone Rubber will take everyone to meet you!

NR ),一种是合成橡胶 First, rubber materials can be divided into two categories according to their source, one is natural rubber ( NR ), and the other is synthetic rubber.

NR(Natural Rubber) 由橡胶树采集胶乳制成,是异戊二烯的聚合物 . 具有很好的耐磨性、很高的弹性、扯断强度及伸长率 . 在空气中易老化,迎热变斗毡,在矿物油或汽油中易膨胀和浴解,耐碱但不耐强酸。 Natural rubber NR (Natural Rubber) is made of rubber tree latex and is a polymer of isoprene . It has good abrasion resistance, high elasticity, breaking strength and elongation . It is easy to age in the air. It will change into bucket felt under heat, easy to swell and dissolve in mineral oil or gasoline, alkali resistance but not strong acid resistance. 弹性好,耐酸碱。 Advantages: good elasticity, acid and alkali resistance. { 可耐植物油 ) 是制作胶带、胶管、胶鞋的原料,并适用于制作减震零件、在汽车刹车油、乙酶等带氢氧根的液体中使用的制品。 Disadvantages: non-weather and oil-resistant ( can withstand vegetable oil ) is the raw material for making tapes, hoses, and rubber shoes, and is suitable for making shock-absorbing parts and products used in hydroxide-containing liquids such as automobile brake oil and acetase.

1.NBR 丁腈橡胶适合于石油系液压油、甘醇系液压油、二酯系润滑油、汽油、水、硅润滑脂、硅油等介质中使用。 There are many types of synthetic rubber. 1.NBR nitrile rubber is suitable for use in petroleum hydraulic oil, glycol hydraulic oil, diester lubricant, gasoline, water, silicone grease, silicone oil and other media. It is currently the most widely used and lowest cost rubber seal. MEK 和氯仿。 Not suitable for polar solvents such as ketones, ozone, nitro hydrocarbons, MEK and chloroform. -40~120 ℃。 The general use temperature range is -40 ~ 120 ℃.

NBR

丁苯胶 SBR(Styrene Butadiene Copolymer) 丁二烯与苯乙烯之共聚合物,与天然胶比较,品质均匀,异物少, 具有更好耐踏性及耐老化性,但机械强度则较弱, 可与天然胶掺合使用。 2. Styrene Butadiene Copolymer SBR (Styrene Butadiene Copolymer) is a copolymer of butadiene and styrene. Compared with natural rubber, it has uniform quality, less foreign matter, better step resistance and aging resistance, but weaker mechanical strength. Can be blended with natural rubber. 70 以下具良好弹力,高硬度时具较差的压缩性;缺点:不建议使用强酸、臭氧、油炎、油酶和脂肪及大部份的碳氢化合物之中。 Advantages: low-cost non-oil-resistant materials, good water resistance, good elasticity below 70 , poor compression at high hardness; disadvantages: strong acids, ozone, oil inflammation, oil enzymes and fats are not recommended Part of the hydrocarbons. Widely used in tire industry, shoe industry, cloth industry and conveyor belt industry.

丁基橡胶 IIR(Butyl Rubber) 为异丁烯与少量异戊二烯聚合而成,因甲基的立体障碍分子的运动比其他聚合物少,故气体透过性较少,对热、日光、臭氧之抵抗性大,电器绝缘性佳 ; 对极性容剂抵抗大,一般使用渴度范围为 -54-110 ℃。 3. Butyl rubber IIR (Butyl Rubber) is formed by the polymerization of isobutylene and a small amount of isoprene. Because methyl steric molecules have less movement than other polymers, they have less gas permeability, and are less resistant to heat, sunlight, Ozone has high resistance and good electrical insulation ; it has high resistance to polar capacitors, and its general thirst range is -54-110 ℃. Advantages: Impermeability to most general gases, good resistance to sunlight and central gas, can be exposed to animals or plants or vaporizable chemicals. . Disadvantages: It is not recommended to use inner tubes, leather bags, rubber paste paper, window frame rubber, steam hoses, heat-resistant conveyor belts, etc. for car tires with petroleum solvents, kerosene and aromatic hydrogen .

氢化丁睛胶 HNBR(HydrogenateNitrile) 氢化丁睛胶为丁睛胶中经由氢化后去除部份双链,经氢化后其耐温性、耐候性比一般丁晴橡胶提高很多,耐油性与一般丁硝胶相近。 4. Hydrogenated Nitrile HNBR (HydrogenateNitrile) Hydrogenated Nitrile is a double-stranded rubber that has been partially hydrogenated after hydrogenation. After hydrogenation, its temperature resistance and weather resistance are much higher than ordinary nitrile rubber. Nitrile is similar. -25-150 'C The general use temperature range is -25-150 'C. 一般适用于洗衣或洗碗的清洗剂中。 Advantages: Better wear resistance than nitrile rubber, excellent resistance to corrosion, tensile, tear and compression. Good resistance to atmospheric conditions such as ozone. Generally suitable for laundry or dishwashing. Cleaning agent. R134a 系统中的密封件。 Disadvantages: It is not recommended to be used in alcohols, enzymes or aromatic solutions in air-conditioning and refrigeration industries, and is widely used as seals in environmentally-friendly refrigerant R134a systems. Automotive engine system seals.

乙丙胶 EPDM( Ethylene propylene Rubber) 由乙烯及丙烯共聚合而成,因此耐热性、耐老化性、耐臭氧性、安定性均非常优秀,但无法硫磺加硫 . 为解决此问题,在 EP 主链上导入少量有双链之第三成份而可加硫即成 EPDM 一般使用温度为 -50-150 ℃。 5. Ethylene propylene rubber (EPDM) is made by copolymerizing ethylene and propylene, so it has excellent heat resistance, aging resistance, ozone resistance, and stability, but cannot be sulfurized . To solve this problem, A small amount of double-stranded third component is introduced into the EP main chain, which can be sulfurized to form EPDM , and the general use temperature is -50-150 ℃. Excellent resistance to polar solvents such as courtyards and osmium. 耐高温蒸气,对气体具良好的不渗透性。 Advantages: Good weather resistance and ozone resistance, excellent water resistance and chemical resistance, alcohols and amidines can be used, high temperature steam resistance, and good impermeability to gases. Cons: Not recommended for food use or exposure to aromatic hydrogen. Seals or parts of sanitary equipment in high temperature water vapor environment. Rubber parts in a braking (braking) system. { 汽车水箱 } 中的密封件。 Seals in radiator { car water tank } .

线束护套

氯丁胶 CR(Neoprene Polychloroprene) 由氯丁烯单体聚合而成 . 硫化后的橡胶弹性耐磨性好,不怕阳光的直接照射,有特别好的耐 { 良性能,不怕激烈的扭曲,不怕制冷剂 ,耐稀酸、耐硅酶系润滑油,但不耐磷酸酶系液压汹 . 在低温时易结品、硬化,贮存稳定性差,在硅酶系润滑油,但不耐磷酸酶系液压汹 . 在低温时易结晶、硬化,贮存稳定性差,在苯胶点低的矿物油中膨胀最大 . 一般使用温度范围为 -50-150 ℃。 6. Neoprene CR (Neoprene , Polychloroprene) is polymerized from chloroprene monomer . The vulcanized rubber has good elasticity and abrasion resistance, and is not afraid of direct sunlight. It has particularly good resistance to { good performance, not afraid of intense distortion. , Not afraid of refrigerants , resistant to dilute acid and siliconase-based lubricants, but not resistant to phosphatase-based hydraulic fluids . Easy to set and harden at low temperatures, poor storage stability, in siliconase-based lubricants, but not resistant to phosphatase The system is hydraulic . It is easy to crystallize and harden at low temperatures, and has poor storage stability . It has the largest expansion in mineral oil with a low benzene gum point . The general temperature range is -50-150 ℃. . 具抗动物及植物泊的特性,不会因中性化学物,脂肪、油脂、多种泊品,溶剂而影响物性,具防燃特性。 Advantages: good elasticity and good compression deformation. The formula does not contain sulfur, so it is very easy to make rice . It has the characteristics of anti-animal and plant mooring, and will not be affected by neutral chemicals, fats, oils, various mooring products and solvents Affects physical properties and has anti-flammability. ; 腔、醋类、氯仿及翻类的化学物之中耐 R12 制冷剂的密封件,家电用品上的橡胶零件或密封件。 Disadvantages: It is not recommended to use strong acids and nitro ; R12 refrigerant resistant seals in cavities, vinegars, chloroforms and flip chemicals , rubber parts or seals on household appliances. It is suitable for making all kinds of parts directly contacting the atmosphere, sunlight and ozone. Suitable for a variety of flame-resistant and chemical-resistant rubber crystals

氟橡胶( FPM 氟橡胶属于特种橡胶,常用的有氟橡胶 —26 、氟橡胶 —246 ,前者为偏氟乙烯和六氟丙烯的共聚物,后者为偏氟乙烯、四氟乙烯和六氟丙烯的共聚物。 7. Fluoro-rubber ( FPM ) Fluoro-rubber is a kind of special rubber. Commonly used are Fluoro- 26 , Fluoro- 246 , the former is a copolymer of vinylidene fluoride and hexafluoropropylene, and the latter is vinylidene fluoride, tetrafluoroethylene Copolymer of hexafluoropropylene. Fluorine rubber has outstanding heat resistance, oil resistance, acid resistance, alkali resistance, excellent aging performance and electrical insulation performance, flame resistance, and low air permeability. But the low temperature performance is poor. -40 250 ,短时间可达 300 The general use temperature range is -40 to 250 , which can reach 300 ℃ in a short time . It is suitable for producing various sealing parts, hoses, rubber sheets and fuel tanks that require heat and oil resistance, but the price is more expensive.


FKM

   23 年,提供从材料研发模具开发到硅橡胶产品制造的顾问式服务,咨询热线: 0769-85536776 Yongyong Silicon Rubber has been focusing on silicone rubber products for 23 years, and provides consulting services ranging from material development mold development to silicone rubber product manufacturing. The consultation hotline is 0769-85536776 .



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