Oil-resistant rubber sheet is one of the most common types of industrial rubber sheets.So,what is the material of oil-resistant rubber sheet?
The oil-resistant properties of rubber sheets are good in nitrile rubber(丁腈橡胶),氢化丁腈橡胶(氢化丁腈橡胶),氯丁橡胶(Cr),and fluorine rubber(氟橡胶).
一,硝酸橡胶(丁腈橡胶)
Nitrile rubber is made by copolymerizing butadiene and acrylonitrile.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 products and hydrocarbon fuels,but the poorer the low-temperature properties.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 has good resistance to oil,水,溶剂,气密性,耐高压油,and excellent adhesion properties.It has good sealing and anti-expansion properties in oil media(例如机油,柴油,汽油,润滑油).It has good compression resistance,耐磨性,和伸长.
它具有良好的耐水性,气密性,及优异的粘合性能，广泛用于制造各种耐油橡胶制品,例如耐油垫片,垫片,袖子,软包装,软橡胶软管,印刷胶辊,and cable rubber materials.It is an indispensable elastic material in the automotive,航空,石油,和复制行业.
二,Hydrogenated Nitrile Rubber(氢化丁腈橡胶)
Hydrogenated Nitrile Rubber is made by catalytic hydrogenation of the unsaturated double bond in neoprene rubber,with the main chain becoming a saturated structure but retaining the nitrile group.This makes HNBR retain its excellent oil resistance while having high strength,high tear resistance,good abrasion resistance,excellent adhesion,耐热性,天气抵抗,化学稳定性好，耐酸,基地,和高温下的盐,可在含有腐蚀性添加剂的润滑油、燃油介质中工作，是综合性能最优异的橡胶之一.
Hydrogenated Nitrile Rubber is currently widely used in the oilfield,汽车工业,etc.It is particularly suitable for producing drill pipe covers for oil and gas wells,阀门密封圈,and gaskets for pumps and other rubber parts.The radiation resistance of HNBR is better than that of silicone rubber,氟橡胶,和聚四氟乙烯,and is also suitable for producing various rubber seals for nuclear power plants.
Three.Chloroprene Rubber Sheet(Cr)
Chloroprene Rubber Sheet is a multi-purpose elastomer with good overall performance.It not only resists silicone-based lubricating oil,but also has good tensile strength,出色的身体韧性;耐热性好,耐臭氧性,weathering resistance,and heat resistance is better than nitrile rubber sheet,weathering resistance is next to EPDM rubber sheet,does not fear direct sunlight,does not fear violent twisting,does not fear refrigerants,is not afraid of dilute acids,tends to crystallize and harden at low temperatures,storage stability is poor,expands greatly in mineral oil with low benzamine point,general use temperature range is-50~150℃.Chloroprene Rubber Sheet has flame retardancy,does not spontaneously combust,can burn when in contact with flames,and self-extinguishes when away from flames,the oxygen index is 38-41.The oxygen index of a material is 27 or higher is considered a difficult-to-combust material.Any rubber sheet containing sufficient halogen has flame retardancy.The oxygen index is a measure of the material’s combustion performance,and its definition is the lowest volume of oxygen gas required for the candle-like flame to be maintained in a nitrogen-oxygen mixture.Chloroprene Rubber Sheet has a very high oxygen index and is very difficult to burn,second only to fluorine rubber.
Four.Fluorine Rubber Sheet(氟橡胶)
Fluorine Rubber Sheet has the characteristics of oil resistance,高温抗性,和耐化学腐蚀,and the working temperature is-25℃-250℃.
Fluorine rubber is a high-performance rubber with excellent resistance to hydrocarbons,化学物质,油,和耐热性。它还具有优异的抗压性能,especially at high temperatures.This rubber sheet is widely used in the petroleum industry,aerospace industry,汽车工业,等腐蚀环境。适合冲压各种高耐油,阻燃,耐高温,和腐蚀性密封件,密封戒指,气缸膜衬里,以及用于航空航天领域的产品.
