Natural rubber sheets are not resistant to oil.The characteristic of natural rubber sheets is good elasticity,耐磨性,耐老化的能力,and good cold resistance,and are mainly used in the fields of construction,flooring,密封件,vibrators,ETC.
Among the rubber sheets,the ones with better oil resistance are nitrile rubber sheets(丁腈橡胶),hydrogenated nitrile rubber sheets(HNBR),chloroprene rubber sheets(Cr),and fluorine rubber sheets(氟橡胶).
One,Nitrile Rubber Sheets(丁腈橡胶)
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,water,solvents,gas tightness,high pressure oil resistance,and excellent adhesion properties.They have sealing and anti-expansion properties in oil media(motor oil,diesel oil,gasoline,lubricating oil).They have good compression,耐磨性,and elongation.
It has good water resistance,gas tightness,and excellent adhesion properties.It is widely used to make various oil-resistant rubber products,such as oil-resistant gaskets,垫片,sleeves,tubes,soft packaging,soft rubber hoses,printing rubber rollers,and cable rubber materials,etc.It has become an indispensable elastic material in the automotive,航空,petroleum,and copying industries.
Two,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,抗撕裂性,耐磨性,good adhesion,耐热性,天气抵抗,and chemical stability.It can withstand acids,基地,and salts at high temperatures,and can work in lubricating oil and fuel oil media with corrosive additives.It is one of the most outstanding rubbers in terms of comprehensive performance.
Hydrogenated nitrile rubber is currently widely used in the oilfield,汽车工业,etc.It is particularly suitable for producing drill pipe shrouds for oil and gas wells,valve seal rings,and gaskets for pumps and other rubber components.The radiation resistance of HNBR is better than that of silicone rubber,氟橡胶,and polytetrafluoroethylene,and is suitable for producing various rubber seals for nuclear power plants.
Three,氯普伦橡胶(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.
Four,Fluoroelastomer sheets(氟橡胶)
Fluoroelastomer sheets have the characteristics of oil resistance,高温抗性,and chemical corrosion resistance,with a working temperature range of-25℃-250℃.
Fluoroelastomer is a high-performance rubber with excellent resistance to hydrocarbons,化学物质,oil,and heat.It also has excellent compression resistance,especially at high temperatures.These rubber sheets are widely used in the petroleum industry,the aviation industry,the automotive industry,and other corrosive environments.It is suitable for punching various high-oil-resistant,阻燃,high-temperature-resistant,and corrosive sealing parts,sealing rings,cylinder membrane linings,and products for use in the aerospace and aviation fields.
Jingdong Rubber Co., 有限公司. 是一家专业的橡胶板生产厂家, producing natural rubber sheet, 氟橡胶板, 丁腈橡胶板, 绝缘橡胶板,三元乙丙橡胶板, 耐油橡胶板, 防静电橡胶板, 阻燃橡胶板, 导电橡胶板, 防滑橡胶板, 和牛棚垫, ETC. 与几乎 40 多年行业经验, 畅销国内外. 如果您需要我们的任何产品,please send emails to sales@jingdongrubber.com.