Natural rubber sheets are not resistant to oil.The characteristic of natural rubber sheets is good elasticity,resistencia al desgaste,resistencia al envejecimiento,and good cold resistance,and are mainly used in the fields of construction,flooring,sellos,vibrators,etc..
Among the rubber sheets,the ones with better oil resistance are nitrile rubber sheets(NBR),hydrogenated nitrile rubber sheets(HNBR),chloroprene rubber sheets(CR),and fluorine rubber sheets(FKM).
Uno,Nitrile Rubber Sheets(NBR)
Nitrile rubber sheets are made by copolymerizing acrylonitrile and butadiene.Nitrile rubber sheets are mainly produced by low-temperature emulsion polymerization.The acrylonitrile content ranges from 18%to 50%.The higher the acrylonitrile content,the better the resistance to petroleum hydrocarbon fuels,but the cold resistance deteriorates.The normal operating temperature range is-25 to 100℃.Nitrile rubber is one of the most commonly used rubbers for oil seals and O-rings.
Nitrile rubber sheets have good resistance to oil,agua,solventes,opresión de gas,Resistencia al aceite de alta presión,and excellent adhesion properties.They have sealing and anti-expansion properties in oil media(motor oil,gasóleo,gasolina,aceite lubricante).They have good compression,resistencia al desgaste,y alargamiento.
Tiene buena resistencia al agua,opresión de gas,y excelentes propiedades de adhesión. Se usa ampliamente para hacer varios productos de goma resistentes al aceite,tales como juntas resistentes al aceite,juntas,mangas,tubes,envasado suave,mangueras de goma suaves,Impresión de rodillos de goma,and cable rubber materials,etc.It has become an indispensable elastic material in the automotive,aviación,petróleo,y copiando industrias.
Dos,Hydrogenated Nitrile Rubber Sheets(HNBR)
Hydrogenated nitrile rubber(HNBR)is made by catalytically adding hydrogen to the unsaturated double bonds in acrylonitrile butadiene rubber,resulting in a saturated main chain but retaining the cyano group.This makes HNBR retain its excellent oil resistance while having high strength,resistencia al desgarro,resistencia al desgaste,good adhesion,resistencia al calor,resistencia al clima,y estabilidad química. Puede resistir los ácidos,bases,y sales a altas temperaturas,y puede funcionar en medios de aceite y combustible lubricantes con aditivos corrosivos. Es una de las gomas más destacadas en términos de rendimiento integral.
Hydrogenated nitrile rubber is currently widely used in the oilfield,industria automotriz,etc.It is particularly suitable for producing drill pipe shrouds for oil and gas wells,Anillos de sello de válvula,and gaskets for pumps and other rubber components.The radiation resistance of HNBR is better than that of silicone rubber,caucho flúor,y politetrafluoroetileno,and is suitable for producing various rubber seals for nuclear power plants.
Tres,Goma de cloropreno(CR)
Chloroprene rubber is a multi-purpose elastomer with good overall performance.It not only resists silicone-based lubricating oil,but also has good tensile strength and excellent physical toughness;good heat and ozone resistance,good weathering resistance,better heat resistance than nitrile rubber board,and second-to-none weathering resistance compared to EPDM rubber board.It is not afraid of direct sunlight and does not fear violent twisting.It is not afraid of refrigerants and is resistant to dilute acids.It tends to crystallize and harden at low temperatures,has poor storage stability,and expands greatly in mineral oil with a benzene point low.The general use temperature range is-50°C to 150°C.Chloroprene rubber has flame retardancy and does not spontaneously ignite.It can burn when in contact with flames,but will self-extinguish when removed from the flames.The oxygen index is 38-41.Materials with an oxygen index of 27 or higher are considered flame-retardant materials.All rubber sheets containing sufficient concentrations of halogen compounds have flame-retardant properties.The oxygen index is a measure of the material’s combustibility,defined as the lowest volume of oxygen gas required for a candle-like flame to be maintained in a nitrogen-oxygen mixture.The oxygen index of neoprene rubber sheets is very high,making them difficult to ignite,second only to fluoroelastomer sheets.
Cuatro,Fluoroelastomer sheets(FKM)
Fluoroelastomer sheets have the characteristics of oil resistance,resistencia a altas temperaturas,y resistencia a la corrosión química,with a working temperature range of-25℃-250℃.
Fluoroelastomer is a high-performance rubber with excellent resistance to hydrocarbons,químicos,aceite,y calor también tiene una excelente resistencia a la compresión,especially at high temperatures.These rubber sheets are widely used in the petroleum industry,the aviation industry,the automotive industry,y otros entornos corrosivos. Es adecuado para perforar varios de alto aceite,ignífugo,resistente a la temperatura,y piezas de sellado corrosivo,anillos de sellado,revestimiento de membrana de cilindro,y productos para su uso en los campos aeroespaciales y de aviación.
Jingdong caucho Co., Limitado. es un fabricante profesional de láminas de caucho, producir láminas de caucho natural, lámina de caucho flúor, hoja de caucho de nitrilo, lámina de caucho aislante,láminas de caucho EPDM, láminas de caucho resistentes al aceite, láminas de goma antiestáticas, láminas de caucho retardantes de llama, láminas de caucho conductoras, láminas de goma antideslizantes, y esteras de establo, etc.. con casi 40 años de experiencia en la industria, son populares tanto en casa como en el extranjero. Si necesitas alguno de nuestros productos,envíe correos electrónicos a sales@jingdongrubber.com.